MESON Chess Problem Database
Problem Display
PID: 132412 (8/3p2N1/2pB3n/8/1p1k1K2/1Bp2p2/p1Pp3n/R5N1 w - - 0 1)
Lawton, Howard
The Field, 1957
(First published on Thu Jan 31 1957)
#2
7 + 10
SOLUTION
- SOUND
- Sets
- 1...Sf1
- 2.Sxf3#
- 1...S2g4
- 2.Sxf3#
- 1...S6g4
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Sf7
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...d1Q
- 2.Rxd1#
- 1...d1S
- 2.Rxd1#
- 1...d1B
- 2.Rxd1#
- 1...d1R
- 2.Rxd1#
- 1...f2
- 2.Se2#
- 1...c5
- 2.Be5#
- 1...Sf1
- Tries
- 1.Bxa2?
- 1...d1Q
- 2.Rxd1#
- 1...d1S
- 2.Rxd1#
- 1...d1B
- 2.Rxd1#
- 1...d1R
- 2.Rxd1#
- 1...S6g4
- 2.Sf5#
- 1...Sf1
- 2.Sxf3#
- 1...S2g4
- 2.Sxf3#
- 1...Sf5
- 2.Sxf5#
- 1...Sf7
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...f2
- 2.Se2#
- 1...c5
- 2.Be5#
- 1...b3!
- 1...d1Q
- 1.Bxb4?
- 1...d1Q
- 2.Rxd1#
- 1...d1S
- 2.Rxd1#
- 1...d1B
- 2.Rxd1#
- 1...d1R
- 2.Rxd1#
- 1...S6g4
- 2.Sf5#
- 1...Sf1
- 2.Sxf3#
- 1...S2g4
- 2.Sxf3#
- 1...Sf5
- 2.Sxf5#
- 1...Sf7
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...f2
- 2.Se2#
- 1...d5
- 2.Se6#
- 1...d6
- 2.Se6#
- 1...c5!
- 1...d1Q
- 1.Bf8?
- 1...d6
- 2.Se6#
- 1...d1Q
- 2.Rxd1#
- 1...d1S
- 2.Rxd1#
- 1...d1B
- 2.Rxd1#
- 1...d1R
- 2.Rxd1#
- 1...Sf1
- 2.Sxf3#
- 1...S2g4
- 2.Sxf3#
- 1...S6g4
- 2.Sf5#
- 1...Sf5
- 2.Sxf5#
- 1...Sf7
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...f2
- 2.Se2#
- 1...d5
- 2.Se6#
- 1...c5!
- 1...d6
- 1.Bxa2?
- Keys
- 1.Be7!
- 1...d6
- 2.Se6#
- 1...d1Q
- 2.Rxd1#
- 1...d1S
- 2.Rxd1#
- 1...d1B
- 2.Rxd1#
- 1...d1R
- 2.Rxd1#
- 1...S6g4
- 2.Sf5#
- 1...Sf1
- 2.Sxf3#
- 1...S2g4
- 2.Sxf3#
- 1...Sf5
- 2.Sxf5#
- 1...Sf7
- 2.Sf5#
- 1...Sg8
- 2.Sf5#
- 1...f2
- 2.Se2#
- 1...c5
- 2.Bf6#
- 1...d5
- 2.Se6#
- 1...d6
- 1.Be7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(c);N_GUARD::S(B),XP(e)
- S(i);N_GUARD::S(G)
- S(i);N_GUARD::S(G),XS(i)
- P(b);OGATEB::R(A),XQ(b)
- P(b);OGATEB::R(A),XS(b)
- P(b);OGATEB::R(A),XB(b)
- P(b);OGATEB::R(A),XR(b)
- P(e);N_GUARD::S(B)
- P(h);SBLOCK::B(F)
- Tries
- Try
- B(D);XP(a)
- Vars
- P(b);OGATEB::R(A),XQ(b)
- P(b);OGATEB::R(A),XS(b)
- P(b);OGATEB::R(A),XB(b)
- P(b);OGATEB::R(A),XR(b)
- S(i);N_GUARD::S(G)
- S(c);N_GUARD::S(B),XP(e)
- S(i);N_GUARD::S(G),XS(i)
- P(e);N_GUARD::S(B)
- P(h);SBLOCK::B(F)
- Refutation
- P(f);
- Try
- B(F);XP(f)
- Vars
- P(b);OGATEB::R(A),XQ(b)
- P(b);OGATEB::R(A),XS(b)
- P(b);OGATEB::R(A),XB(b)
- P(b);OGATEB::R(A),XR(b)
- S(i);N_GUARD::S(G)
- S(c);N_GUARD::S(B),XP(e)
- S(i);N_GUARD::S(G),XS(i)
- P(e);N_GUARD::S(B)
- P(j);N_GUARD::S(G)
- Refutation
- P(h);
- Try
- B(F);
- Vars
- P(j);N_GUARD::S(G)
- P(b);OGATEB::R(A),XQ(b)
- P(b);OGATEB::R(A),XS(b)
- P(b);OGATEB::R(A),XB(b)
- P(b);OGATEB::R(A),XR(b)
- S(c);N_GUARD::S(B),XP(e)
- S(i);N_GUARD::S(G)
- S(i);N_GUARD::S(G),XS(i)
- P(e);N_GUARD::S(B)
- Refutation
- P(h);
- Try
- Actual
- B(F);
- Vars
- P(j);N_GUARD::S(G)
- P(b);OGATEB::R(A),XQ(b)
- P(b);OGATEB::R(A),XS(b)
- P(b);OGATEB::R(A),XB(b)
- P(b);OGATEB::R(A),XR(b)
- S(i);N_GUARD::S(G)
- S(c);N_GUARD::S(B),XP(e)
- S(i);N_GUARD::S(G),XS(i)
- P(e);N_GUARD::S(B)
- P(h);SBLOCK::B(F)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).