MESON Chess Problem Database
Problem Display
PID: 51096 (1b1n4/2pRB3/4p1KN/3bkP1n/3pp1Rr/3PP2p/7P/1Q6 w - - 0 1)
Seymour, Robert Hoe
Burnley Express, 1881
#2
10 + 11
SOLUTION
- SOUND
- Sets
- 1...Rxg4+
- 2.Sxg4#
- 1...Ba2
- 2.exd4#
- 1...Bb3
- 2.exd4#
- 1...Bc4
- 2.exd4#
- 1...Bc6
- 2.exd4#
- 1...Bb7
- 2.exd4#
- 1...Ba8
- 2.exd4#
- 1...Sg3
- 2.Bf6#
- 1...Sf4+
- 2.exf4#
- 1...Sf6
- 2.Bxf6#
- 1...Sg7
- 2.Bf6#
- 1...Sc6
- 2.Sf7#
- 1...Sb7
- 2.Sf7#
- 1...Sf7
- 2.Sxf7#
- 1...dxe3
- 2.Qa1#
- 2.Qb2#
- 1...exd3
- 2.exd4#
- 1...c5
- 2.Qxb8#
- 1...c6
- 2.Qxb8#
- 1...Rxg4+
- Tries
- 1.Bc5?
- threat
- 2.Bxd4#
- 2.exd4#
- 1...Rxg4+
- 2.Sxg4#
- 1...Sf4+
- 2.exf4#
- 1...dxe3
- 2.Qa1#
- 2.Qb2#
- 2.d4#
- 1...Ba7
- 2.exd4#
- 1...Sc6
- 2.Sf7#
- 1...exf5!
- threat
- 1.Bxd8?
- threat
- 2.Sf7#
- 1...Rxg4+
- 2.Sxg4#
- 1...Sf4+
- 2.exf4#
- 1...dxe3
- 2.Qa1#
- 2.Qb2#
- 1...exf5!
- threat
- 1.Rxh4?
- threat
- 2.Sg4#
- 1...Sf4+
- 2.exf4#
- 1...dxe3
- 2.Qa1#
- 2.Qb2#
- 1...exd3
- 2.exd4#
- 1...Sf6
- 2.Bxf6#
- 1...exf5!
- threat
- 1.Rxd8?
- threat
- 2.Sf7#
- 1...Rxg4+
- 2.Sxg4#
- 1...Sf4+
- 2.exf4#
- 1...dxe3
- 2.Qa1#
- 2.Qb2#
- 1...exf5!
- threat
- 1.Qb3?
- 1...Rxg4+
- 2.Sxg4#
- 1...Sf4+
- 2.exf4#
- 1...Bxb3
- 2.exd4#
- 1...dxe3
- 2.Qb2#
- 2.Qc3#
- 1...exd3
- 2.exd4#
- 1...exf5
- 2.Qxd5#
- 1...Bc4
- 2.exd4#
- 1...Bc6
- 2.exd4#
- 1...Bb7
- 2.exd4#
- 1...Ba8
- 2.exd4#
- 1...Sg3
- 2.Bf6#
- 1...Sf6
- 2.Bxf6#
- 1...Sg7
- 2.Bf6#
- 1...Sc6
- 2.Sf7#
- 1...Sb7
- 2.Sf7#
- 1...Sf7
- 2.Sxf7#
- 1...c5
- 2.Qxb8#
- 1...c6
- 2.Qxb8#
- 1...Ba7!
- 1...Rxg4+
- 1.Qb5?
- 1...Rxg4+
- 2.Sxg4#
- 1...Sf4+
- 2.exf4#
- 1...dxe3
- 2.Qb2#
- 1...exd3
- 2.exd4#
- 1...exf5
- 2.Qxd5#
- 1...Sg3
- 2.Bf6#
- 1...Sf6
- 2.Bxf6#
- 1...Sg7
- 2.Bf6#
- 1...Sc6
- 2.Sf7#
- 1...Sb7
- 2.Sf7#
- 1...Sf7
- 2.Sxf7#
- 1...c5
- 2.Qxb8#
- 1...c6
- 2.Qxb8#
- 1...Ba7!
- 1...Rxg4+
- 1.Qb6?
- threat
- 2.Qxd4#
- 2.exd4#
- 1...Rxg4+
- 2.Sxg4#
- 1...Sf4+
- 2.exf4#
- 1...dxe3
- 2.Qb2#
- 2.d4#
- 1...exf5
- 2.exd4#
- 1...Ba7
- 2.Qxc7#
- 2.exd4#
- 1...Sc6
- 2.Sf7#
- 1...c5
- 2.Qxb8#
- 1...cxb6!
- threat
- 1.Qxb8?
- threat
- 2.Qxc7#
- 1...Rxg4+
- 2.Sxg4#
- 1...Sf4+
- 2.exf4#
- 1...dxe3
- 2.Qb2#
- 1...Sb7
- 2.Sf7#
- 1...Sf7
- 2.Sxf7#
- 1...exf5!
- threat
- 1.Bc5?
- Keys
- 1.Qb7!
- 1...Rxg4+
- 2.Sxg4#
- 1...Sf4+
- 2.exf4#
- 1...Bxb7
- 2.exd4#
- 1...Sxb7
- 2.Sf7#
- 1...dxe3
- 2.Qb2#
- 1...exd3
- 2.exd4#
- 1...exf5
- 2.Qxd5#
- 1...Ba7
- 2.Qxc7#
- 1...Ba2
- 2.Qxe4#
- 2.exd4#
- 1...Bb3
- 2.Qxe4#
- 2.exd4#
- 1...Bc4
- 2.Qxe4#
- 2.exd4#
- 1...Bc6
- 2.exd4#
- 1...Sg3
- 2.Bf6#
- 1...Sf6
- 2.Bxf6#
- 1...Sg7
- 2.Bf6#
- 1...Sc6
- 2.Sf7#
- 1...Sf7
- 2.Sxf7#
- 1...c5
- 2.Qxb8#
- 1...c6
- 2.Qxb8#
- 1...Rxg4+
- 1.Qb7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- R(d);CHECK,XR(E)::S(H),XR(d)
- B(e);::P(D),XP(b)
- S(g);N_GUARD::B(J)
- S(g);CHECK,OGATE::P(D),XS(g)
- S(g);N_GUARD::B(J),XS(g)
- S(k);N_GUARD::S(H)
- S(k);N_GUARD::S(H),XS(k)
- P(c);XP(C)::P(D),XP(b)
- P(i);OGATEB::QAB(A),XB(j)
- Tries
- Try
- B(J);
- Threat
- DUALS(2)
- Vars
- R(d);CHECK,XR(E)::S(H),XR(d)
- S(g);CHECK,OGATE::P(D),XS(g)
- B(j);::P(D),XP(b)
- S(k);N_GUARD::S(H)
- Refutation
- P(h);XP(F)
- Try
- B(J);XS(k)
- Threat
- S(H)
- Vars
- R(d);CHECK,XR(E)::S(H),XR(d)
- S(g);CHECK,OGATE::P(D),XS(g)
- Refutation
- P(h);XP(F)
- Try
- R(E);XR(d)
- Threat
- S(H)
- Vars
- S(g);CHECK,OGATE::P(D),XS(g)
- P(c);XP(C)::P(D),XP(b)
- S(g);N_GUARD::B(J),XS(g)
- Refutation
- P(h);XP(F)
- Try
- R(I);XS(k)
- Threat
- S(H)
- Vars
- R(d);CHECK,XR(E)::S(H),XR(d)
- S(g);CHECK,OGATE::P(D),XS(g)
- Refutation
- P(h);XP(F)
- Try
- Q(A);
- Vars
- R(d);CHECK,XR(E)::S(H),XR(d)
- S(g);CHECK,OGATE::P(D),XS(g)
- B(e);XQ(A)::P(D),XP(b)
- P(c);XP(C)::P(D),XP(b)
- P(h);N_GUARD,XP(F)::QAR1(A),XB(e)
- B(e);::P(D),XP(b)
- S(g);N_GUARD::B(J)
- S(g);N_GUARD::B(J),XS(g)
- S(k);N_GUARD::S(H)
- S(k);N_GUARD::S(H),XS(k)
- P(i);OGATEB::QAB(A),XB(j)
- Refutation
- B(j);
- Try
- Q(A);P_PINB(e)
- Vars
- R(d);CHECK,XR(E)::S(H),XR(d)
- S(g);CHECK,OGATE::P(D),XS(g)
- P(b);OGATEB,XP(D)::QAB(A)
- P(c);XP(C)::P(D),XP(b)
- P(h);N_GUARD,XP(F)::QAR1(A),XB(e)
- S(g);N_GUARD::B(J)
- S(g);N_GUARD::B(J),XS(g)
- S(k);N_GUARD::S(H)
- S(k);N_GUARD::S(H),XS(k)
- P(i);N_SPINB(e),OGATEB::QAB(A),XB(j)
- P(i);OGATEB::QAB(A),XB(j)
- Refutation
- B(j);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(d);CHECK,XR(E)::S(H),XR(d)
- S(g);CHECK,OGATE::P(D),XS(g)
- P(h);XP(F)::P(D),XP(b)
- S(k);N_GUARD::S(H)
- P(i);OGATEB::QAB(A),XB(j)
- Refutation
- P(i);XQ(A)
- Try
- Q(A);P_PINP(i),XB(j)
- Threat
- QAB(A),XP(i)
- Vars
- R(d);CHECK,XR(E)::S(H),XR(d)
- S(g);CHECK,OGATE::P(D),XS(g)
- P(b);OGATEB,XP(D)::QAB(A)
- S(k);N_GUARD::S(H)
- S(k);N_GUARD::S(H),XS(k)
- Refutation
- P(h);XP(F)
- Try
- Actual
- Q(A);
- Vars
- R(d);CHECK,XR(E)::S(H),XR(d)
- S(g);CHECK,OGATE::P(D),XS(g)
- B(e);XQ(A)::P(D),XP(b)
- S(k);N_GUARD,XQ(A)::S(H)
- P(b);OGATEB,XP(D)::QAB(A)
- P(c);XP(C)::P(D),XP(b)
- P(h);N_GUARD,XP(F)::QAR1(A),XB(e)
- B(j);N_GUARD::QAB(A),XP(i)
- B(e);::P(D),XP(b)
- S(g);N_GUARD::B(J)
- S(g);N_GUARD::B(J),XS(g)
- S(k);N_GUARD::S(H)
- S(k);N_GUARD::S(H),XS(k)
- P(i);OGATEB::QAB(A),XB(j)
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).