Exercise No.5 for Solvers

Dear readers,
in this exercise No.5 twelve direct-mate problems are included, and you are kindly requested to solve them. (Now, if you solve some but not all, it is quite all right. Send less than twelve solutions. Write only the key for two-movers, write first and second move for three-movers, write the full variation for the more-mover. Avoid anonymous comments. Last date for comments: 30/04/2008).

The first six problems have BP4 theme from pawn on squares b7 thru g7 correspondingly.
In the problem-55 there is set-play and tries relevant with Grimshaw and Nowotny intersections.
In the problem-56 there is initially a disturbing pawn f7, but how can we deal with the four moves of bPe7?
In the problem-57 we see the revealer rook Ra1 and we understand which is the key.
In the problem-58 we spot instantly the Nowotny key-move.
In the problem-59 we do not need extra strong forces to achieve mate.
In the problem-60 there is a double Grimshaw (one Bishop and two Rooks).

The solutions will be posted next month.

	(Problem 49) Comins Mansfield, 1916 White plays and mates in 2 moves #2 (6+4)
[KR2B3/Bp6/Q7/8/8/8/5S1p/6kr]
	(Problem 50) Murray Marble & Henry Walt Bettmann, White plays and mates in 2 moves #2 (5+2)
[7Q/2p5/1P1S3R/3k4/8/2K5/8/8]
	(Problem 51) Henry Wald Bettmann, 1915 White plays and mates in 2 moves #2 (13+2)
[4B3/3p4/2P1PQ2/P1k2P1R/4P1S1/1K4R1/5S1B/8]
	(Problem 52) Κ. Comins Mansfield, 3rd Prize, Memorial L. Segal, Themes-64, 1962 White plays and mates in 2 moves #2 (7+3)
[8/4p2K/3P4/5kP1/2R1Sp2/1B3Q2/8/8]
	(Problem 53) C. Morse, ”The Problemist”, 1962 White plays and mates in 2 moves #2 (9+3)
[5Q2/4Bp2/4P1R1/4R3/4p1BP/4P1k1/8/6K1]
	(Problem 54) Walther Jorgensen Arbejder Skak 1950 White plays and mates in 2 moves #2 (10+8)
[6Q1/1S4p1/2R2S1P/5k2/3P1s1p/5RbP/5p1p/2B2K1s]
	(Problem 55) W. Tura, First Prize, ”Europe Echecs”, 1962 (Set play). White plays and mates in 2 moves * #2 (10+11)
[2B1S1q1/2S1Pb2/1pP3rs/b3k1p1/r2p2R1/BR1p2K1/5Q2/8]
	(Problem 56) M. Niemeijer, First Prize, ”Tijdschrift v. d. N. S. B.”, 1928 White plays and mates in 3 moves #3 (9+8)
[2b3K1/1pPkpp2/1P1P1RP1/3p1p1S/3S1p2/5P2/8/8]
	(Problem 57) Ren A. White plays and mates in 3 moves #3 (6+5)
[8/8/6s1/8/8/2s3R1/4P2p/RbSQK2k]
	(Problem 58) Mertes White plays and mates in 2 moves #2 (4+3)
[8/6r1/5Q1b/7k/8/5S1K/4S3/8]
	(Problem 59) Allan Werle, ”Tidskrift för Schack“, 1945 White plays and mates in 4 moves #4 (2+2)
[8/4P3/8/8/8/8/3p1K2/7k]
	(Problem 60) J. A. Schiffmann, ”T N S B Chess Assn. Tourney”, 1929 White plays and mates in 2 moves #2 (12+8)
[8/1s1Pp3/b3PkSP/R3S1p1/r2Q2P1/p5K1/B4B2/3r1R2]

[This post in Greek language].