Showing posts with label __Studies. Show all posts
Showing posts with label __Studies. Show all posts

Monday, September 25, 2017

2nd Cup "Vyron Zappas" solving tourney, 2017

Problems:
https://drive.google.com/file/d/0B2-Lv0IlDIs6YVhycFVTSTBJcEU/view?usp=sharing

Problems with solutions:
https://drive.google.com/file/d/0B2-Lv0IlDIs6YlNRazNoTHQzS0E/view?usp=sharing

Solvers and Grades :
https://drive.google.com/file/d/0B2-Lv0IlDIs6SHRiell6VEVOekk/view?usp=sharing



Aegaleo Athens, Icaria island, Syros island

Tuesday, March 28, 2017

16th Greek Championship in Solving, 2017-03-26

The 16th Greek Championship in Solving Chess Problems took place on Sunday 26-iii-2017, in the Aigaleo chess club, in Athens.

Problems 1st round.
https://drive.google.com/file/d/0B2-Lv0IlDIs6MEhuT3RWQWNhMzA/view?usp=sharing

Problems 2nd round.
https://drive.google.com/file/d/0B2-Lv0IlDIs6MXZsMkI0bjFlMVk/view?usp=sharing

Solutions 1st round.
https://drive.google.com/file/d/0B2-Lv0IlDIs6TG5VUmZ0elg2NjQ/view?usp=sharing

Solutions 2nd round.
https://drive.google.com/file/d/0B2-Lv0IlDIs6a0h3NEhvbWFvVVU/view?usp=sharing

Final results.
https://drive.google.com/file/d/0B2-Lv0IlDIs6T19DS20zTGRyalk/view?usp=sharing


Sunday, January 08, 2017

4th Greek Cup, problems, solutions, results

The 4th Greek Cup in solving chess problems took place today 08/01/2017.

Mr Nikos Mendrinos had the general responsibility for the event and the selection of problems.

The Problems
https://drive.google.com/file/d/0B2-Lv0IlDIs6d05uYVZpQktieUE/view?usp=sharing

The solutions with comments
https://drive.google.com/file/d/0B2-Lv0IlDIs6U1NvLVJYZ3JuZjg/view?usp=sharing

The results (23/01/2017):
https://drive.google.com/file/d/0B2-Lv0IlDIs6ZFIxa3J4VTFVRzA/view?usp=sharing

Press release
https://drive.google.com/file/d/0B2-Lv0IlDIs6akRISDVBTFVZN1E/view?usp=sharing

Photo from Aegaleo, Athens


Tuesday, December 06, 2016

Small Studies, by Panagiotis Konidaris

There is a good work about studies, by Panagiotis Konidaris, published in Greek. Mr Konidaris is a writer and chess-player from the island Meganissi, near Lefkada, Greece.
The studies are compositions (that is they are not necessarily endings of actual OTB games, but they are created by a composer), aiming to show some hidden features of game endings.
Here the composer and solver Konidaris has selected some memorable studies for presentation, explaining the solutions in a pleasant way. I will not translate the text, but I believe that you can see the studies and their solutions.

First part, here : http://kallitexniko-skaki.blogspot.gr/2016/11/1-6.html

Second part, here : http://kallitexniko-skaki.blogspot.gr/2016/11/2-6.html

Third part, here : http://kallitexniko-skaki.blogspot.gr/2016/11/3-6.html

Fourth part, here : http://kallitexniko-skaki.blogspot.gr/2016/11/4-6.html

Fifth part, here : http://kallitexniko-skaki.blogspot.gr/2016/12/5-6.html

Sixth part, here : http://kallitexniko-skaki.blogspot.gr/2016/12/6-6.html

Monday, October 31, 2016

15th Greek Solving Contest

The contest was held in parallel in Athens and Patras.

The problems were selected by Ioannis Garoufalidis.

Problems :
First Round. https://drive.google.com/file/d/0B2-Lv0IlDIs6akY1TWtJQk00Um8/view?usp=sharing
Second Round. https://drive.google.com/file/d/0B2-Lv0IlDIs6RF9rRU9TdGdFRGM/view?usp=sharing

Solutions :
First Round. https://drive.google.com/file/d/0B2-Lv0IlDIs6amVnWDFkTGVfZ00/view?usp=sharing
Second Round. https://drive.google.com/file/d/0B2-Lv0IlDIs6QXhncENLM2NiMGc/view?usp=sharing

Resultshttps://drive.google.com/file/d/0B2-Lv0IlDIs6dWVMVHpHZDNPX1k/view?usp=sharing

Solvers who participated :

01. Sidiropoulos N
02. Papastavropoulos A
03. Mendrinos N
04. Konidaris P
05. Masouros P
06. Anemodouras L
07. Skyrianoglou D
08. Fougiaxis H
09. Spiliadis A
10. Manolas E
11. Pountzas C
12. Petridis E
13. Kollias I
14. Moutzouris I
15. Vlachos E
16. Kalyva K
17. Vaggopoulos A
18. Christodoulou S
19. Aggelis P
20. Christodoulou G

Monday, June 13, 2016

13-ESSNA solving contest

13th Open Solving contest "Championship of Attiki".
It is organised by the Union of Chess Clubs Of Attiki Prefecture (around Athens, Greece).
Place : Chess Club of Aegaleo.
Time : Sunday, June 12, 17:00 - 20:00.
Judge (and program selector) : Ioannis Garoufalidis

The problems :


https://drive.google.com/file/d/0B2-Lv0IlDIs6d1F3d1U3UXY3T2c/view?usp=sharing

The solutions :


https://drive.google.com/file/d/0B2-Lv0IlDIs6ZzN4YmFnQVhMaDA/view?usp=sharing

Ranking of solvers :


https://drive.google.com/file/d/0B2-Lv0IlDIs6UGhtSGFLa0duMnM/view?usp=sharing

Photos from the event

(by Dim. Skyrianoglou)

Monday, June 23, 2014

13th Greek Championship in Solving, 2014

The 13th Greek Championship in Solving Chess Problems this year went to Patras, Greece, first time away from Athens.
It was organized by The Patras Chess Group (SOP) and was hosted by the Chamber of Achaia in a very nice conference room, and there were 24 participants. Available time for solving : 3 hours.

Surname Name nr.
1
nr.
2
nr.
3
 nr.
4
nr.
 5
nr.
6
nr.
7
nr.
8
nr.
9
nr.
 10
nr.
 11
nr.
12
total mins rank up to
18
w
Mendrinos Nikos 5 5 5 5 4 5 5 1 0 35 180 1
Papastavropoulos Andreas 5 5 5 5 4 5 0 29 180 2
Konidaris Panagiotis 5 5 0 3 5 0 4 3 25 180 3
Spyropoulos Giorgos 5 5 5 0 0 5 0 0 20 180 4
Spiliadis Athanasios 5 5 4 1 2 0 17 180 5
Fougiaxis Harry 5 5 5 1 16 180 6
Triantos Konstantinos 5 5 5 0 0 0 15 167 7 v
Betsos Titos 5 5 5 15 180 8, 9
Pountzas Chrysanthos 5 5 0 5 0 15 180 8, 9
Alexandrou Anastasios 5 5 4 0 14 180 10
Masouros Panagiotis 5 0 5 0 0 4 14 180 11
Malataras Gerasimos 5 5 3 0 0 13 180 12 v
Athanasopoulos Kyriakos 5 5 0 10 170 13 v
Vaggopoulos Anastasios 5 0 3 0 0 0 8 180 14
Stamatopoulos Apostolos 5 0 0 0 2 7 161 15 v
Zaronikas Dimitris 5 0 0 2 0 7 168 16 v
Manolas Emmanuel 0 0 4 0 0 3 7 180 17
Kalyva Kyriaki 5 0 0 0 0 0 0 5 171 18, 20 v v
Mavromati Aggeliki 5 0 0 5 171 18, 20 v
Kakoulidis Vasilis 5 5 171 18, 20 v
Betsos Nicolas-Evaggelos 5 0 0 0 0 5 173 21 v
Stefanatos Gerasimos 5 0 0 0 0 0 0 5 180 22 v
Stamatopoulos Giorgos 0 0 0 180 23 v


Here you may see the problems, selected by the judge Ioannis Garoufalidis, who said the problems were easy because he decided to lower the level a bit so that more solvers can solve them, and their solutions.

With 5 points per problem, solving 12 problems you get 60 points maximum.

The problems ...

... and their solutions.

Monday, May 19, 2014

10th European Chess Solving Champioship, results

It is announced on the site of World Federation for Chess Compositions, WFCC, that the 10th European Chess Solving Contest, ECSC, was carried out in Igalo of Montenegro, May 16-18 2014.

The results were posted on the site www.selivanov.ru .

ECSC
18 problems, 90 points maximum
.SolverELOPointsPerformance
1Murdzia, Piotr2775,7286,002836
2Evseev, Georgy2778,0679,002735
3Filipovic, Marko2624,8274,502670
10Mendrinos, Nikos2346,7268,502584
44Kourkoulos-Arditis, Stamatis-40,602183
58Fougiaxis, Harry1982,7525,301964

The Greek champion Nikos Mendrinos is very happy for the 10th place, the 2nd IM norm and the title FM (as he is over 2400 Elo).

Problems

Solutions
(A small surprise for me here it was the selected eight-mover).

Open
12 problems, 60 points maximum
.SolverELOPointsPerformance
1Mestel, Jonathan2550,6360,002776
2Murdzia, Piotr2775,7257,002706
3Gorski, Piotr2500,0456,502695
36Fougiaxis, Harry1982,7536,502232
38Mendrinos, Nikos2346,7235,752215
54Kourkoulos-Arditis Stamatis-27,002012

Team
1.Πολωνία, 2.Ρωσία, 3.Σερβία

Quick

programm

participants

fotoalbum

Saturday, October 19, 2013

Three studies by Kyriakos Fragoulis

Kyriakos Fragoulis (1935 - 1997), from Leykada island in Greece, became well known in composing circles with his studies. There were other Greeks also creating chess problems of various types, but Kyriakos Fragoulis was composing exclusively studies.

Study is a position with stipulation "White plays and wins" or "White plays and draws" without specifying in how many moves we must achieve it. The study is like an endgame, but it is a composition, it is not coming from a game.

The players of over the board chess are solving studies as an exercice.

These studies were sent to me by Panagiotis Konidaris from Meganissi (an island near Leykada), who had actually met Kyriakos Fragoulis. Panagiotis says that he found them in some old and turned yellow pieces of paper (thanks Panagiotis!), and they are unpublished, as far as I know.
Their solutions are visible only if you select the text between the square brackets [...].



Problem-744
Kyriakos Fragoulis, Greece
original
8/6Pb/P1K5/7k/8/8/5P1r/8 (4 + 3)
= White plays and draws

Solution : [1.g8=Q! (1.a7? Be4+! 2.K~ Rg2 -+) Bxg8 2.a7! Bh7 3.Kd5! Rh4 (3...Bg8+ 4.Kc6 Bh7 5.Kd5) 4.f4! Rxf4 5.a8=Q! Be4+ 6.Ke5 Bxa8 7.Kxf4=]

Problem-745
Kyriakos Fragoulis, Greece
original
8/8/1r3p2/7K/6P1/6Pk/1S6/4R3 (5 + 3)
+ White plays and wins

Solution : [1.Sc4! Rb5+ (1…Rb4 2.Se3! Kxg3 3.Sd5! Rxg4 4.Rg1+, +-), (1…Rb7 2. Sd6 Rh7+ 3.Kg6 Rd7 4. Se4! Kxg4 5.Sxf6+, +-) 2.Kg6 Rg5+ (2…Kxg3 3.Se3 Rg5+ 4.Kxf6 Rg8 5.Rg1+ Kf3 6.g5 +-)
3.Kxf6 Rxg4 4.Se3! Rxg3 (4…R~ 5.g4 +-) (4…Rg8 5.Rh1+ Kxg3 6.Rg1+ K~ 7.Rxg8 +-) 5.Rh1#

The chess program Fritz prefers other continuation, without surprises and with many moves 1.Sd3 Rb5+ 2.Kh6 Kxg4 3.Re3 Rf5 4.Sf4 Re5 5.Rd3 f5 6.Sd5 Re6+ 7.Kg7 +- ]

Problem-746
Kyriakos Fragoulis, Greece
original
8/S7/7p/1p5k/6p1/6KP/8/8  (3 + 4)
+ White plays and wins

Solution : [1.h4! b4 2.Sc6! (2.Sb5? b3 3.Sd4 b2 4.Se2 Kg6 5.Sc3 h5 =) b3 3.Se5! b2 4.Sd3 b1=Q
5.Sf4#]

Sunday, September 15, 2013

12th Greek Championship in Solving Chess Problems


It is the 12th Championship in Solving Chess Problems in Greece.

Winners : (1) Nikos Mendrinos, (2) Panagiotis Konidaris, (3) Stamatis Kourkoulos-Arditis

Try to solve these 12 problems. The solutions will be shown if you select the text between the brackets [ ].


12th  Greek Championship, 15 IX 2013

Round 1  -  Problems, Time 2 hours
(725) 1
 #2, Mate in 2 moves
R7/1Q2pbKp/3Bk1P1/3R4/2pps2r/s5S1/6B1/3r2b1 (8 + 11)

Anatoly Slesarenko & Valery Shansin
1. Prize, The Problemist, 2000

[Key : 1.Rg5! (5) [2.Qxe7#]
1...Sxd6 2.Bd5#, 1...Kxd6 2.Ra6#, 1...exd6 2.Qxf7#


Changed mates, Themes Rudenko, Option, Chernet, etc
]
(726) 2
#3, Mate in 3 moves,
8/2p1Sp2/2p5/1p1Bp2K/Qb2pkP1/5pS1/r1P2PsP/8  (9 + 11)

Michael Keller & Thornsten Zirkwitz
1-2. Prize, Sachsische Zeitung, 2001

[Tries : {1.Bxf7? [2.Sg6#] Sh4!}, {1.Bxc6? [2.Sd5#] Se3!}

Key : 1.h3! [2.Kh6 ~ 3.Sh5# (1)]
1...Rxc2 2.Qxc2 (1) 2...cxd5/ f5 3.Sxd5# / 3.Sg6#
1...Sh4 2.Bxc6 (1) Bxe7 3.Qxe4#
1...Se3 2.Bxf7 (1) Bxe7 3.Qxe4#
1...e3 2.Qxb4+ (1) e4 3.Qxe4# 

Logical, Themes Banny, Pseudo Le Grand].
(727) 3
#7, Mate in 7 moves,
qr6/pp2Pb1B/rP6/p1R1SS1k/R4P2/2pPP2p/5p2/5K2 (11 + 11)

Olivier Schmitt 
Diagrammes, 2011

[Tries : {1.Bg6? Bxg6!}, {1.Sd7? Rxb6!}

Key : 1.Rc6! (1)
1...bxc6 2.Sd7 Kg4 3.Sf6+ Kf3 4.Ra2 Bxa2 5.Sd7 Kg4 6.Se5+ (3) Kh5 7.Bg6#
1...Rxb6 2.Sg7+ Kh4 3.Rxb6 [4.Sf5+ Kh5 5.Rh6#] axb6 4.Kxf2 [5.Sf3+ Kg4 6.Bf5#] Be6 5.Sf3+ Kg4 6.f5+ (1) Bc4 7.Rxc4#

Switchback of wSe5, sacrifice of wR. Two foreplans for the deflection of bBf7]. 
(728) 4
+, White plays and wins,
1b6/5b2/3p1B1k/8/6Kp/1P1S2S1/8/8 (5 + 5)

Sergeo Nikolaevich Tkachenko  
2nd Commendation, Israel-Chess-Composition-Society-50 JT, 1998

[1.Sf5+ Kg6 2.Bd8! (1) Bxb3 3.Se7+ Kf7 4.Sc6! Ke8 5.Ba5! (1) (5.Bb6? Kd7! 6.Sxb8+ Kc8 7.Sc6 Ld1+ 8.Kxh4 Kb7 9.Sd4 Kxb6! 10.Sb2 Kc5 11.Se6+ Kd5 12.Sf4+ Ke4) 
5...Bc7! 6.Bxc7 Kd7 7.Sd4! (1) Bd1+ 8.Kxh4(1) (8.Kg5? Kxc7 9.Sb2 h3 10.Sxd1 h2 11.Sf2 Kb6 12.Kg4 Kc5 13.Se6+ Kc4)
8...Kxc7 9.Sb2! (1) +- 

Domination to ensure win (according Troitzky)
].
(729) 5
h#3, 211111, Helpmate in 3 moves, 2 solutions 
2R5/3S4/1pr4s/3p1kq1/2rs4/4p3/1K6/1b6 (3 + 10)

Christer Jonsson
1.Prize, Schach, 1988

[1.Kg6 Rc7 2.Sh6-f5 Sf8+ 3.Kh6 Rh7#  (2.5)
1.Ke4 Rd8 2.Sd4-f5 Sf6+ 3.Kd4 Rxd5# (2.5)

Exchange of positions between bK and each bS, Model mates.
]
(730) 6
s#5, Selfmate in 5 moves,
2b4R/1p1p1S2/1P1Q1RSb/P1p4k/1B6/2P2KP1/ 3P1P2/5B2 (14 + 6)

Bohuslav Mikyska
Sachove Listy, 1901

[Key : 1.Sh4! zugzwang (1)
1...c4 2.Bd3 cxd3 3.a6 bxa6 4.Ba5 Bb7+5.Qd5+ (2) Bxd5#
1...cxb4 2.Bh3 ~ 3.Sg2 ~ 4.Qc5+ d5 5.Bg4+ (2) Bxg4#
]

2#: Write the key.
3# and 7#: Write the key, possible threats and all the variations until the last-but-one white move
Study: Write all the moves until a visible win.
H#: Write the full solution
S#: Write the key, possible threats and all the variations until the last-but-one white move.


12th  Greek Championship, 15 IX 2013

Round 2  -  Problems, Time 2 hours
(731) 1
 #2, Mate in 2 moves
sr6/3QS1bb/qB1S4/1R5r/p1P2R2/PPk1p2s/2B1P3/2K5 (12 + 10)

Carel J. R. Sammelius
1-2 Prize, JT Nederlandse-Bond-van-Probleemvrienden-35, 1966

[Tries : {1.Se7-f5? Re8!}, {1.Sd6-f5? Sh3xf4!}, {1.Qf5? Sxb6!}, {1.Rf4-f5? Qb7!}, {1.Bf5? Qxb5!}

Key: 1.Rb5-f5! (5) [2.Sd5# / Se4#]

Sacrifice Novotni, where only one from six moves is right!
]
(732) 2
 #3, Mate in 3 moves, 
3S1b2/Q4B2/5pp1/1kpSpR2/8/p7/2b5/K7 (6 + 8)

Cenek Kainer
Casopis Sach 1921

[Key: 1.Sc6! [2.Sd5-b4 [3.Qa5/Qa6] cxb4 3.Sd4# (1)
1...Bxf5/Be4 2.Qa4+ (1) Kxa4 3.Sd5-c3#
1...gxf5 2.Sa5 (1) ~ 3.Be8#
1...Kxc6 2.Qb6+ (1) Kd7 3.Qc7#
1...Kc4 2.Qa6+(1) Kb3 3.Qb5#

Sacrificial key, Model mates, Theme Cyclic Zilahi (the mating piece is captured in another variation)
]
(733) 3
 #4, Mate in 4 moves, 
2s5/3s1Q2/2R4B/qP1ppB2/S1pk2P1/Ppb1p3/4P3/5K2 (10 + 10)

Igor A. Agapov (after Anatoly Styopochkin)
Special Prize, 1st FIDE World Cup 2010

[Key: 1.Qe6! (1) [2.Bxe3+ Kxe3 3.Qh6+ Kd4 4.e3# (1)
1...Sf6 2.Qxe5+ Kxe5 3.Re6+ (1) Kd4 4.Bxe3#
1...Qd8 2.Rxc4+ Kxc4 3.Qc6+ (0.5) Kd4 4.Qxc3#, 3...Sc5 4.Qxc5#, 2...dxc4 3.Qc6 (0.5) Sc5 4.Qxc5#, 3...Sd6 4.Qxd6#
1...Bd2 2.Qxd5+ Kxd5 3.Be6+ (1) Kd4/Κe4 4.Rxc4# 

Changed mates, Switchback of bK, Themes Zilahi, Kniest, Bristol, Chumakov, ODT
].
(734) 4
 =, White plays and draws,
6r1/2R3pk/q1s1p3/4S2K/b3P3/4P3/2Q5/8 (6 + 7)

Amazia Avni
Chess in Israel, 1999

[1.Qh2 (1) (1.Sf7? Qa5+ 2.e5+ g6+ (2...Βxc2? 3.Sg5+ Kh8 4.Sf7+ Kh7 5.Sg5+) 3.Kg4 (3.Kg5 Βxc2) 3...Qxc7 4.Sg5+ Kg7 5.Sxe6+ Kf7] 
1...Rh8! (1...Re8? 2.Kg5+ Kg8 3.Rxg7+) 
2.Sf7 (2.Kg5+? Kg8 3.Qf4 Sxe5) 
2...Kg8+! 3.Sxh8 Qa5+ (3...Bd1+ 4.Kh4! Kxh8? 5.Kg3+) 
4.Kg6! (1) (4.Kg4? Se5+) 
4...Se5+ 5.Qxe5! Be8+! (5...Qxe5 6.Rc8+) 
6.Rf7! Qxe5  = (3)

Stalemate by self-pin.
]
(735) 5
 h#6, Helpmate in 6 moves
8/1s2k3/qp6/rB6/8/8/8/5K2 (2 + 5)

Frantiek Korostenski
Prize, Sachove Umeni 2001

[1.Kd6 Bd3 2.Qc4 Ke2 3.Qc7 Ba6 4.Kc6 Kd3 5.Rd5+ Kc4 6.Rd6 Bb5# (5)

Circuit of wB and Pelle move (while it is pinned), Bicolour Bristol
].
(736) 6
 s#3, Selfmate in 3 moves,
4b3/2S1p3/2p1p3/P1k1P2p/K4P1P/PR1R4/3S4/Q7 (11 + 5)

Leonid Kubbel
Jas 1935 , 1st Prize

[Set play : 1…Bd7 2.Sxe6+ Bxe6 3.Rb5+ cxb5#

Key: 1.Rd8! zugzwang (1)
1...Bd7 2.Qd4+ Kxd4 3.Kb4 (2) c5#
1...Bxg6  2.Qc1+ Bc2 3.Sb5 (1) cxb5#
1...Bf7 2.Sxe6+ Bxe6 3.Rb5+ (1) cxb5#

Critical move of wR, Model mates
].
       
2#: Write the key.
3# and 4#: Write the key, possible threats and all the variations until the last-but-one white move
Study: Write all the moves until a visible draw.
H#: Write the full solution
S#: Write the key, possible threats and all the variations until the last-but-one white move.