MESON Chess Problem Database
Problem Display
PID: 4777 (2n5/4p2p/1p4bN/4k1P1/p1B5/Q1K2P2/2P3N1/B4n2 w - - 0 1)
Heathcote, Godfrey
English Mechanic and World of Science, 1891
(First published on Fri Jul 3 1891)
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Bxc2
- 2.Kxc2#
- 1...Bd3
- 2.Kxd3#
- 1...Be4
- 2.f4#
- 1...Bf5
- 2.Sf7#
- 1...Bh5
- 2.Kd3#
- 1...Bf7
- 2.Kd3#
- 1...Be8
- 2.Kd3#
- 1...Sd2
- 2.Kxd2#
- 1...Sh2
- 2.Kd2#
- 1...Se3
- 2.Kd2#
- 1...Sg3
- 2.Kd2#
- 1...Sd6
- 2.Kb4#
- 1...Sa7
- 2.Qxe7#
- 1...b5
- 2.Qc5#
- 1...Bxc2
- Tries
- 1.Kb2?
- threat
- 2.Kb1#
- 2.Kc1#
- 2.Ka2#
- 1...Bxc2
- 2.Kc1#
- 2.Ka2#
- 2.Kxc2#
- 1...Sd2
- 2.Kc1#
- 2.Ka2#
- 1...Kd4!
- threat
- 1.Bb2?
- 1...Bxc2
- 2.Kxc2#
- 1...Bd3
- 2.Kxd3#
- 1...Be4
- 2.f4#
- 1...Bf5
- 2.Sf7#
- 1...Bh5
- 2.Kd3#
- 1...Bf7
- 2.Kd3#
- 1...Be8
- 2.Kd3#
- 1...Sd2
- 2.Kxd2#
- 1...Sh2
- 2.Kd2#
- 1...Se3
- 2.Kd2#
- 1...Sg3
- 2.Kd2#
- 1...Sd6
- 2.Kb4#
- 1...Sa7
- 2.Qxe7#
- 1...b5
- 2.Qc5#
- 1...e6!
- 1...Bxc2
- 1.Bb3?
- 1...Bxc2
- 2.Kxc2#
- 1...Bd3
- 2.Kxd3#
- 1...Be4
- 2.f4#
- 1...Bf5
- 2.Sf7#
- 1...Bh5
- 2.Kd3#
- 1...Bf7
- 2.Kd3#
- 1...Be8
- 2.Kd3#
- 1...Sd2
- 2.Kxd2#
- 1...Sh2
- 2.Kd2#
- 1...Se3
- 2.Kd2#
- 1...Sg3
- 2.Kd2#
- 1...Sd6
- 2.Kb4#
- 1...Sa7
- 2.Qxe7#
- 1...b5
- 2.Qc5#
- 1...e6
- 2.Kc4#
- 1...axb3!
- 1...Bxc2
- 1.Bf7?
- threat
- 2.Kc4#
- 1...Bd3
- 2.Kxd3#
- 1...Sd2
- 2.Kxd2#
- 1...Se3
- 2.Kd2#
- 1...Sd6
- 2.Kb4#
- 1...b5
- 2.Qc5#
- 1...Bxf7!
- threat
- 1.Bg8?
- threat
- 2.Kc4#
- 1...Bd3
- 2.Kxd3#
- 1...Sd2
- 2.Kxd2#
- 1...Se3
- 2.Kd2#
- 1...Sd6
- 2.Kb4#
- 1...b5
- 2.Qc5#
- 1...Bf7!
- threat
- 1.Qd6+?
- 1...Sxd6
- 2.Kb4#
- 1...exd6
- 2.Kb4#
- 1...Kxd6!
- 1...Sxd6
- 1.Kb2?
- Keys
- 1.Ba2!
- 1...Bxc2
- 2.Kxc2#
- 1...Bd3
- 2.Kxd3#
- 1...Be4
- 2.f4#
- 1...Bf5
- 2.Sf7#
- 1...Bh5
- 2.Kd3#
- 1...Bf7
- 2.Kd3#
- 1...Be8
- 2.Kd3#
- 1...Sd2
- 2.Kxd2#
- 1...Sh2
- 2.Kd2#
- 1...Se3
- 2.Kd2#
- 1...Sg3
- 2.Kd2#
- 1...Sd6
- 2.Kb4#
- 1...Sa7
- 2.Qxe7#
- 1...b5
- 2.Qc5#
- 1...e6
- 2.Kc4#
- 1...Bxc2
- 1.Ba2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(e);XP(B)::B(A)+K(E),XB(e)
- B(e);::B(A)+K(E),XB(e)
- B(e);SBLOCK::P(F)
- B(e);N_GUARD,SBLOCK::S(I)
- B(e);::B(A)+K(E)
- S(a);::B(A)+K(E),XS(a)
- S(a);::B(A)+K(E)
- S(h);SBLOCK::B(A)+K(E)
- S(h);N_GUARD::QAR2(D),XP(f)
- P(d);N_GUARD::QAR2(D)
- Tries
- Try
- K(E);S_FLIGHT
- Threat
- DUALS(3)
- Refutation
- K(c);S_FLIGHT
- Try
- B(A);
- Vars
- B(e);XP(B)::B(A)+K(E),XB(e)
- B(e);::B(A)+K(E),XB(e)
- B(e);SBLOCK::P(F)
- B(e);N_GUARD,SBLOCK::S(I)
- B(e);::B(A)+K(E)
- S(a);::B(A)+K(E),XS(a)
- S(a);::B(A)+K(E)
- S(h);SBLOCK::B(A)+K(E)
- S(h);N_GUARD::QAR2(D),XP(f)
- P(d);N_GUARD::QAR2(D)
- Refutation
- P(f);
- Try
- B(G);
- Vars
- B(e);XP(B)::B(A)+K(E),XB(e)
- B(e);::B(A)+K(E),XB(e)
- B(e);SBLOCK::P(F)
- B(e);N_GUARD,SBLOCK::S(I)
- B(e);::B(A)+K(E)
- S(a);::B(A)+K(E),XS(a)
- S(a);::B(A)+K(E)
- S(h);SBLOCK::B(A)+K(E)
- S(h);N_GUARD::QAR2(D),XP(f)
- P(d);N_GUARD::QAR2(D)
- P(f);SBLOCK::B(A)+K(E)
- Refutation
- P(b);XB(G)
- Try
- B(G);
- Threat
- B(A)+K(E)
- Vars
- B(e);::B(A)+K(E),XB(e)
- S(a);::B(A)+K(E),XS(a)
- S(a);::B(A)+K(E)
- S(h);SBLOCK::B(A)+K(E)
- P(d);N_GUARD::QAR2(D)
- Refutation
- B(e);XB(G)
- Try
- B(G);
- Threat
- B(A)+K(E)
- Vars
- B(e);::B(A)+K(E),XB(e)
- S(a);::B(A)+K(E),XS(a)
- S(a);::B(A)+K(E)
- S(h);SBLOCK::B(A)+K(E)
- P(d);N_GUARD::QAR2(D)
- Refutation
- B(e);
- Try
- Q(D);CHECK
- Vars
- S(h);SBLOCK,XQ(D)::B(A)+K(E)
- P(f);SBLOCK,XQ(D)::B(A)+K(E)
- Refutation
- K(c);S_FLIGHT,XQ(D)
- Try
- Actual
- B(G);
- Vars
- B(e);XP(B)::B(A)+K(E),XB(e)
- B(e);::B(A)+K(E),XB(e)
- B(e);SBLOCK::P(F)
- B(e);N_GUARD,SBLOCK::S(I)
- B(e);::B(A)+K(E)
- S(a);::B(A)+K(E),XS(a)
- S(a);::B(A)+K(E)
- S(h);SBLOCK::B(A)+K(E)
- S(h);N_GUARD::QAR2(D),XP(f)
- P(d);N_GUARD::QAR2(D)
- P(f);SBLOCK::B(A)+K(E)
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).