MESON Chess Problem Database
Problem Display
PID: 49696 (6k1/3N1p1b/KR4qP/P3B2p/1p5P/1Bnp2R1/3P2P1/2Q5 w - - 0 1)
Gamage, Frederick
The Chess Problem, 1945
#2
12 + 8
| 56 | The Problemist | 2003 |
| 5397 | Frederick Gamage (Prcic) | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Qxg3
- 2.Rb8#
- 1...Qg4
- 2.Rb8#
- 1...Qg5
- 2.Rb8#
- 1...Qg7
- 2.Rb8#
- 1...Sb1
- 2.Qc8#
- 1...Sd1
- 2.Qc8#
- 1...Sa2
- 2.Qc8#
- 1...Se2
- 2.Qc8#
- 1...Sa4
- 2.Qc8#
- 1...Se4
- 2.Qc8#
- 1...Sb5
- 2.Qc8#
- 1...Sd5
- 2.Qc8#
- 1...Qxg3
- Tries
- 1.Sf6+?
- 1...Kf8
- 2.Bd6#
- 1...Kh8!
- 1...Kf8
- 1.Ba2?
- 1...Qxg3
- 2.Rb8#
- 1...Sxa2
- 2.Qc8#
- 1...Qg7
- 2.Rb8#
- 1...Qg4
- 2.Rb8#
- 1...Qg5
- 2.Rb8#
- 1...Sb1
- 2.Qc8#
- 1...Sd1
- 2.Qc8#
- 1...Se2
- 2.Qc8#
- 1...Sa4
- 2.Qc8#
- 1...Se4
- 2.Qc8#
- 1...Sb5
- 2.Qc8#
- 1...Sd5
- 2.Qc8#
- 1...b3!
- 1...Qxg3
- 1.Bd5?
- 1...Qxg3
- 2.Rb8#
- 1...Sxd5
- 2.Qc8#
- 1...Qg7
- 2.Rb8#
- 1...Sb1
- 2.Qc8#
- 1...Qg4
- 2.Rb8#
- 1...Qg5
- 2.Rb8#
- 1...Sd1
- 2.Qc8#
- 1...Sa2
- 2.Qc8#
- 1...Se2
- 2.Qc8#
- 1...Sa4
- 2.Qc8#
- 1...Se4
- 2.Qc8#
- 1...Sb5
- 2.Qc8#
- 1...b3!
- 1...Qxg3
- 1.Bd4?
- 1...Qg7
- 2.Rb8#
- 1...Sb1
- 2.Qc8#
- 1...Qg4
- 2.Rb8#
- 1...Qg5
- 2.Rb8#
- 1...Sd1
- 2.Qc8#
- 1...Sa2
- 2.Qc8#
- 1...Se2
- 2.Qc8#
- 1...Sa4
- 2.Qc8#
- 1...Se4
- 2.Qc8#
- 1...Sb5
- 2.Qc8#
- 1...Sd5
- 2.Qc8#
- 1...Qxg3!
- 1...Qg7
- 1.Bf4?
- 1...Qxg3
- 2.Rb8#
- 1...Sb1
- 2.Qc8#
- 1...Qg4
- 2.Rb8#
- 1...Qg5
- 2.Rb8#
- 1...Qg7
- 2.Rb8#
- 1...Sd1
- 2.Qc8#
- 1...Sa2
- 2.Qc8#
- 1...Se2
- 2.Qc8#
- 1...Sa4
- 2.Qc8#
- 1...Se4
- 2.Qc8#
- 1...Sb5
- 2.Qc8#
- 1...Sd5
- 2.Qc8#
- 1...Kh8!
- 1...Qxg3
- 1.Rg4?
- 1...Qxg4
- 2.Rb8#
- 1...Qg7
- 2.Rb8#
- 1...Sb1
- 2.Qc8#
- 1...Qg5
- 2.Rb8#
- 1...Sd1
- 2.Qc8#
- 1...Sa2
- 2.Qc8#
- 1...Se2
- 2.Qc8#
- 1...Sa4
- 2.Qc8#
- 1...Se4
- 2.Qc8#
- 1...Sb5
- 2.Qc8#
- 1...Sd5
- 2.Qc8#
- 1...hxg4!
- 1...Qxg4
- 1.Rg5?
- 1...Qg7
- 2.Rb8#
- 1...Sb1
- 2.Qc8#
- 1...Sd1
- 2.Qc8#
- 1...Sa2
- 2.Qc8#
- 1...Se2
- 2.Qc8#
- 1...Sa4
- 2.Qc8#
- 1...Se4
- 2.Qc8#
- 1...Sb5
- 2.Qc8#
- 1...Sd5
- 2.Qc8#
- 1...Qxg5!
- 1...Qg7
- 1.Qf1?
- threat
- 2.Bxf7#
- 2.Qxf7#
- 1...Qg7
- 2.Rb8#
- 1...Sd5!
- threat
- 1.Qc2?
- 1...Qxg3
- 2.Rb8#
- 1...Qg7
- 2.Rb8#
- 1...Sb1
- 2.Qc8#
- 1...Qg4
- 2.Rb8#
- 1...Qg5
- 2.Rb8#
- 1...Sd1
- 2.Qc8#
- 1...Sa2
- 2.Qc8#
- 1...Se2
- 2.Qc8#
- 1...Sa4
- 2.Qc8#
- 1...Se4
- 2.Qc8#
- 1...Sb5
- 2.Qc8#
- 1...Sd5
- 2.Qc8#
- 1...dxc2!
- 1...Qxg3
- 1.Sf6+?
- Keys
- 1.Re6!
- 1...Qxg3
- 2.Re8#
- 1...fxe6
- 2.Bxe6#
- 1...Qg7
- 2.Re8#
- 1...f5
- 2.Rexg6#
- 1...f6
- 2.Re8#
- 1...Sb1
- 2.Qc8#
- 1...Qg4
- 2.Re8#
- 1...Qg5
- 2.Re8#
- 1...Sd1
- 2.Qc8#
- 1...Sa2
- 2.Qc8#
- 1...Se2
- 2.Qc8#
- 1...Sa4
- 2.Qc8#
- 1...Se4
- 2.Qc8#
- 1...Sb5
- 2.Qc8#
- 1...Sd5
- 2.Qc8#
- 1...Qxg3
- 1.Re6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 4
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Q(e);N_PINR(J),N_SPINQ(e),XR(E)::R(J)
- Q(e);N_PINR(J)::R(J)
- S(a);OGATE::QAR(A)
- S(a);N_SPINP(f),OGATE::QAR(A)
- Tries
- Try
- S(L);CHECK,N_SPINR(J)
- Vars
- K(h);N_SPINP(f),N_SPINQ(e),P-FLIGHT::B(H)
- Refutation
- K(h);N_SPINP(f),N_SPINQ(e),P-FLIGHT
- Try
- B(D);
- Vars
- Q(e);N_PINR(J),N_SPINQ(e),XR(E)::R(J)
- S(a);N_SPINP(f),OGATE,XB(D)::QAR(A)
- Q(e);N_PINR(J)::R(J)
- S(a);OGATE::QAR(A)
- S(a);N_SPINP(f),OGATE::QAR(A)
- Refutation
- P(c);N_SPINP(f)
- Try
- B(D);
- Vars
- Q(e);N_PINR(J),N_SPINQ(e),XR(E)::R(J)
- S(a);N_SPINP(f),OGATE,XB(D)::QAR(A)
- Q(e);N_PINR(J)::R(J)
- S(a);OGATE::QAR(A)
- Refutation
- P(c);
- Try
- B(H);
- Vars
- Q(e);N_PINR(J)::R(J)
- S(a);OGATE::QAR(A)
- S(a);N_SPINP(f),OGATE::QAR(A)
- Refutation
- Q(e);N_PINR(J),N_SPINQ(e),XR(E)
- Try
- B(H);
- Vars
- Q(e);N_PINR(J),N_SPINQ(e),XR(E)::R(J)
- S(a);OGATE::QAR(A)
- Q(e);N_PINR(J)::R(J)
- S(a);N_SPINP(f),OGATE::QAR(A)
- Refutation
- K(h);N_SPINP(f),N_SPINQ(e),P-FLIGHT
- Try
- R(E);
- Vars
- Q(e);N_PINR(J),N_SPINQ(e),XR(E)::R(J)
- Q(e);N_PINR(J)::R(J)
- S(a);OGATE::QAR(A)
- S(a);N_SPINP(f),OGATE::QAR(A)
- Refutation
- P(d);N_SPINQ(e),XR(E)
- Try
- R(E);
- Vars
- Q(e);N_PINR(J)::R(J)
- S(a);OGATE::QAR(A)
- S(a);N_SPINP(f),OGATE::QAR(A)
- Refutation
- Q(e);N_PINR(J),N_SPINQ(e),XR(E)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(e);N_PINR(J)::R(J)
- Refutation
- S(a);N_SPINP(f)
- Try
- Q(A);
- Vars
- Q(e);N_PINR(J),N_SPINQ(e),XR(E)::R(J)
- Q(e);N_PINR(J)::R(J)
- S(a);OGATE::QAR(A)
- S(a);N_SPINP(f),OGATE::QAR(A)
- Refutation
- P(b);XQ(A)
- Try
- Actual
- R(J);N_PINP(f)
- Vars
- Q(e);N_PINR(J),N_SPINQ(e),XR(E)::R(J)
- P(f);OGATE,P_SPINP(f),XR(J)::B(D),XP(f)
- Q(e);N_PINR(J)::R(J)
- P(f);::B(D)+R(J),DCHECK,XQ(e)
- P(f);N_PINR(J)::B(D)+R(J),DCHECK
- S(a);OGATE::QAR(A)
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).