MESON Chess Problem Database
Problem Display
PID: 19022 (4RK2/4N3/2pP4/1pb2Q2/3k4/5bR1/Pp2Brr1/1n3NB1 w - - 0 1)
Heathcote, Godfrey
3rd Prize, Pittsburgh Gazette-Times, 1911
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Kc3
- 2.Qxc5#
- 1...Bxe2
- 2.Qf4#
- 1...Be4
- 2.Qf6#
- 1...Bg4
- 2.Sxc6#
- 2.Qf4#
- 1...Bh5
- 2.Sxc6#
- 2.Qf4#
- 1...Kc3
- Tries
- 1.Sxc6+?
- 1...Kc3
- 2.Qd3#
- 2.Qxc5#
- 1...Bxc6!
- 1...Kc3
- 1.Sg6?
- threat
- 2.Qd3#
- 2.Qe5#
- 1...Kc3
- 2.Qxc5#
- 1...Bxe2
- 2.Re4#
- 1...Be4
- 2.Rxe4#
- 1...Bg4
- 2.Re4#
- 1...Bd5
- 2.Qf6#
- 1...Bh5
- 2.Re4#
- 1...Ba3
- 2.Qe5#
- 1...Bb4
- 2.Qe5#
- 1...Bb6
- 2.Qe5#
- 1...Ba7
- 2.Qe5#
- 1...Bxd6+!
- threat
- 1.Sc8?
- threat
- 2.Qd3#
- 2.Qe5#
- 1...Kc3
- 2.Qxc5#
- 1...Bxe2
- 2.Re4#
- 1...Be4
- 2.Rxe4#
- 1...Bg4
- 2.Re4#
- 1...Bd5
- 2.Qf6#
- 1...Bh5
- 2.Re4#
- 1...Ba3
- 2.Qe5#
- 1...Bb4
- 2.Qe5#
- 1...Bb6
- 2.Qe5#
- 1...Ba7
- 2.Qe5#
- 1...Bxd6+!
- threat
- 1.Sg8?
- threat
- 2.Qd3#
- 2.Qe5#
- 1...Kc3
- 2.Qxc5#
- 1...Bxe2
- 2.Re4#
- 1...Be4
- 2.Rxe4#
- 1...Bg4
- 2.Re4#
- 1...Bd5
- 2.Qf6#
- 1...Bh5
- 2.Re4#
- 1...Ba3
- 2.Qe5#
- 1...Bb4
- 2.Qe5#
- 1...Bb6
- 2.Qe5#
- 1...Ba7
- 2.Qe5#
- 1...Bxd6+!
- threat
- 1.Bxf2+?
- 1...Kc3
- 2.Qxc5#
- 1...Rxf2!
- 1...Kc3
- 1.Qf4+?
- 1...Be4
- 2.Qf6#
- 1...Kc3!
- 1...Be4
- 1.Qxc5+?
- 1...Ke4
- 2.Sg6#
- 2.Qe3#
- 1...Kxc5!
- 1...Ke4
- 1.Qd5+?
- 1...Kc3
- 2.Qxc5#
- 1...Bxd5+
- 2.Sf5#
- 1...cxd5!
- 1...Kc3
- 1.Sxc6+?
- Keys
- 1.Qg5!
- threat
- 2.Qe3#
- 1...Bxe2+
- 2.Qf4#
- 1...Be4+
- 2.Qf6#
- 1...Bg4+
- 2.Qf4#
- 1...Bd5+
- 2.Sf5#
- 1...Bh5+
- 2.Qf4#
- 1...Kc3
- 2.Qxc5#
- 1...Ke4
- 2.Sxc6#
- threat
- 1.Qg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- K(f);N_SPINR(c),P_SPINB(e),S_FLIGHT::QAR2(F),XB(h)
- B(e);N_GUARD,P_PINQ(F),XB(D)::QAR2(F)
- B(e);P_PINQ(F),SBLOCK::QAB(F)
- Tries
- Try
- S(H);CHECK,P_SPINP(G),XP(i)
- Refutation
- B(e);P_PINQ(F),XS(H)
- Try
- S(H);P_SPINP(G)
- Threat
- DUALS(2)
- Vars
- K(f);N_SPINR(c),P_SPINB(e),S_FLIGHT::QAR2(F),XB(h)
- B(e);N_GUARD,P_PINQ(F),XB(D)::R1(I)
- B(e);N_GUARD,P_PINQ(F)::R1(I),XB(e)
- B(e);N_GUARD,P_PINQ(F)::R1(I)
- B(e);P_PINQ(F),SBLOCK::QAB(F)
- B(h);::QAB1(F)
- B(h);N_PINP(G)::QAB1(F)
- Refutation
- B(h);CHECK,XP(G)
- Try
- S(H);P_SPINP(G)
- Threat
- DUALS(2)
- Vars
- K(f);N_SPINR(c),P_SPINB(e),S_FLIGHT::QAR2(F),XB(h)
- B(e);N_GUARD,P_PINQ(F),XB(D)::R1(I)
- B(e);N_GUARD,P_PINQ(F)::R1(I),XB(e)
- B(e);N_GUARD,P_PINQ(F)::R1(I)
- B(e);P_PINQ(F),SBLOCK::QAB(F)
- B(h);::QAB1(F)
- B(h);N_PINP(G)::QAB1(F)
- Refutation
- B(h);CHECK,XP(G)
- Try
- S(H);P_SPINP(G)
- Threat
- DUALS(2)
- Vars
- K(f);N_SPINR(c),P_SPINB(e),S_FLIGHT::QAR2(F),XB(h)
- B(e);N_GUARD,P_PINQ(F),XB(D)::R1(I)
- B(e);N_GUARD,P_PINQ(F)::R1(I),XB(e)
- B(e);N_GUARD,P_PINQ(F)::R1(I)
- B(e);P_PINQ(F),SBLOCK::QAB(F)
- B(h);::QAB1(F)
- B(h);N_PINP(G)::QAB1(F)
- Refutation
- B(h);CHECK,XP(G)
- Try
- B(B);CHECK,XR(c)
- Vars
- K(f);P_SPINB(e),S_FLIGHT::QAR2(F),XB(h)
- Refutation
- R(d);XB(B)
- Try
- Q(F);CHECK
- Vars
- B(e);P_PINQ(F),P_SPINB(e),SBLOCK::QAB(F)
- Refutation
- K(f);N_SPINR(c),P_SPINB(e),S_FLIGHT
- Try
- Q(F);CHECK,XB(h)
- Refutation
- K(f);S_FLIGHT,XQ(F)
- Try
- Q(F);CHECK
- Vars
- K(f);N_SPINR(c),P_SPINB(e),S_FLIGHT::QAR2(F),XB(h)
- B(e);CHECK,SBLOCK,XQ(F)::S(H)
- Refutation
- P(i);XQ(F)
- Try
- Actual
- Q(F);
- Threat
- QAB1(F)
- Vars
- B(e);CHECK,N_GUARD,XB(D)::QAR2(F)
- B(e);CHECK,SBLOCK::QAB(F)
- B(e);CHECK,N_GUARD::QAR2(F)
- B(e);CHECK,SBLOCK::S(H)
- K(f);N_SPINR(c),P_SPINB(e),S_FLIGHT::QAR2(F),XB(h)
- K(f);N_SPINR(c),P-FLIGHT::R(I)+S(H),XP(i)
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).