MESON Chess Problem Database
Problem Display
PID: 182428 (4N1B1/1pB3p1/2p3P1/2k3KR/2P1RpQ1/n1Pp4/3P4/nqN1brrb w - - 0 1)
Bettmann, Henry Wald
British Chess Magazine, 1912
#2
12 + 13
SOLUTION
- SOUND
- Sets
- 1...Qa2
- 2.Sxd3#
- 1...Qb2
- 2.Sxd3#
- 1...Qb3
- 2.Sxd3#
- 1...Qb4
- 2.Sxd3#
- 1...Qb5
- 2.Sxd3#
- 1...Qb6
- 2.Sxd3#
- 2.Bd6#
- 1...Rf2
- 2.Kh4#
- 1...Rf3
- 2.Re5#
- 1...Rg2
- 2.Re5#
- 1...Rg3
- 2.Kh4#
- 1...Rxg4+
- 2.Kxg4#
- 1...Bxd2
- 2.Kh4#
- 1...Bf2
- 2.Kxf4#
- 1...Bg3
- 2.Qf5#
- 1...Bh4+
- 2.Kxh4#
- 1...Bg2
- 2.Qf5#
- 1...Bf3
- 2.Kxf4#
- 1...S1c2
- 2.Sxd3#
- 1...S3c2
- 2.Sxd3#
- 1...f3
- 2.Kf4#
- 2.Re5#
- 1...b6
- 2.Bd6#
- 1...Qa2
- Tries
- 1.Sf6?
- threat
- 2.Sd7#
- 1...Rxg4+
- 2.Kxg4#
- 1...Bh4+
- 2.Kxh4#
- 1...gxf6+
- 2.Kxf6#
- 1...Sxc4!
- threat
- 1.Bb6+?
- 1...Qxb6
- 2.Sxd3#
- 1...Kxb6!
- 1...Qxb6
- 1.Qxg1+?
- 1...Rf2
- 2.Kg4#
- 2.Kh4#
- 1...Bf2
- 2.Kxf4#
- 2.Kg4#
- 1...Rxg1+!
- 1...Rf2
- 1.Sf6?
- Keys
- 1.Sd6!
- 1...Rxg4+
- 2.Kxg4#
- 1...Bh4+
- 2.Kxh4#
- 1...Qxc1
- 2.Sxb7#
- 1...Bxd2
- 2.Kh4#
- 1...Bxe4
- 2.Sxe4#
- 1...Sxc4
- 2.Rxc4#
- 1...Qa2
- 2.Sxd3#
- 2.Sxb7#
- 1...Qc2
- 2.Sxb7#
- 1...Qb2
- 2.Sxd3#
- 1...Qb3
- 2.Sxd3#
- 1...Qb4
- 2.Sxd3#
- 1...Qb5
- 2.Sxd3#
- 1...Qb6
- 2.Sxd3#
- 1...Rf2
- 2.Kh4#
- 1...Rf3
- 2.Re5#
- 1...Rg2
- 2.Re5#
- 1...Rg3
- 2.Kh4#
- 1...Bf2
- 2.Kxf4#
- 1...Bg3
- 2.Qf5#
- 1...Bg2
- 2.Qf5#
- 1...Bf3
- 2.Kxf4#
- 1...S1c2
- 2.Sxd3#
- 1...Sb3
- 2.Sxb7#
- 1...S3c2
- 2.Sxd3#
- 1...Sb5
- 2.Sxb7#
- 1...f3
- 2.Kf4#
- 2.Re5#
- 1...b5
- 2.Sb7#
- 1...b6
- 2.Sb7#
- 1...Rxg4+
- 1.Sd6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 8
- REMOVED MATES = 1
- Sets
- Q(b);N_GUARD::S(A),XP(h)
- R(d);::R(H)+K(G)
- R(d);S_CUTB(f)::R(E)
- R(e);S_CUTB(f)::R(E)
- R(e);::R(H)+K(G)
- R(e);CHECK,XQ(F)::R(H)+K(G),XR(e)
- B(c);XP(B)::R(H)+K(G)
- B(c);::R(H)+K(G),XP(i)
- B(c);N_PINQ(F)::QAR(F)
- B(c);CHECK::R(H)+K(G),XB(c)
- B(f);N_PINQ(F)::QAR(F)
- B(f);::R(H)+K(G),XP(i)
- S(a);S_CUTQ(b)::S(A),XP(h)
- S(g);S_CUTQ(b)::S(A),XP(h)
- P(l);SBLOCK::B(J)
- Tries
- Try
- S(K);
- Threat
- S(K)
- Vars
- R(e);CHECK,XQ(F)::R(H)+K(G),XR(e)
- B(c);CHECK::R(H)+K(G),XB(c)
- P(m);CHECK,XS(K)::R(H)+K(G),XP(m)
- Refutation
- S(g);XP(D)
- Try
- B(J);CHECK
- Vars
- Q(b);SBLOCK,XB(J)::S(A),XP(h)
- Refutation
- K(j);S_FLIGHT,XB(J)
- Try
- Q(F);CHECK,N_SPINQ(F),XR(e)
- Refutation
- R(d);CHECK,XQ(F)
- Try
- Actual
- S(K);
- Vars
- R(e);CHECK,XQ(F)::R(H)+K(G),XR(e)
- B(c);CHECK::R(H)+K(G),XB(c)
- Q(b);N_GUARD,XS(A)::S(K),XP(l)
- B(c);XP(B)::R(H)+K(G)
- B(f);XR(E)::S(K),XB(f)
- S(g);OGATE,XP(D)::R1(E),XS(g)
- Q(b);N_GUARD::S(K),XP(l)
- Q(b);N_GUARD::S(A),XP(h)
- R(d);::R(H)+K(G)
- R(d);S_CUTB(f)::R(E)
- R(e);S_CUTB(f)::R(E)
- R(e);::R(H)+K(G)
- B(c);::R(H)+K(G),XP(i)
- B(c);N_PINQ(F)::QAR(F)
- B(f);N_PINQ(F)::QAR(F)
- B(f);::R(H)+K(G),XP(i)
- S(a);S_CUTQ(b)::S(A),XP(h)
- S(a);S_CUTQ(b)::S(K),XP(l)
- S(g);S_CUTQ(b)::S(A),XP(h)
- S(g);S_CUTQ(b)::S(K),XP(l)
- P(l);S_CUTQ(b)::S(K)
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).