MESON Chess Problem Database
Problem Display
PID: 133046 (3bQ3/2p5/1pR5/3N1R2/kr5p/1pBB4/1P6/4K3 w - - 0 1)
McCabe, MJ
The Field, 1960
(First published on Thu Mar 31 1960)
#2
8 + 7
SOLUTION
- SOUND
- Sets
- 1...Ka5
- 2.Sxb6#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rc4#
- 1...Re4+
- 2.Qxe4#
- 1...Rf4
- 2.Rxf4#
- 2.Rc4#
- 1...Rg4
- 2.Rc4#
- 1...Rb5
- 2.Rc4#
- 1...Bg5
- 2.Qa8#
- 1...Bf6
- 2.Qa8#
- 1...Be7
- 2.Qa8#
- 1...b5
- 2.Ra6#
- 1...Ka5
- Tries
- 1.Kd1?
- 1...Ka5
- 2.Sxb6#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rc4#
- 1...Re4
- 2.Rc4#
- 2.Qxe4#
- 1...Rf4
- 2.Rxf4#
- 2.Rc4#
- 1...Rg4
- 2.Rc4#
- 1...Rb5
- 2.Rc4#
- 1...Bg5
- 2.Qa8#
- 1...Bf6
- 2.Qa8#
- 1...Be7
- 2.Qa8#
- 1...b5
- 2.Ra6#
- 1...h3!
- 1...Ka5
- 1.Kf1?
- 1...Rf4+
- 2.Rxf4#
- 1...Ka5
- 2.Sxb6#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rc4#
- 1...Re4
- 2.Rc4#
- 2.Qxe4#
- 1...Rg4
- 2.Rc4#
- 1...Rb5
- 2.Rc4#
- 1...Bg5
- 2.Qa8#
- 1...Bf6
- 2.Qa8#
- 1...Be7
- 2.Qa8#
- 1...b5
- 2.Ra6#
- 1...h3!
- 1...Rf4+
- 1.Ke2?
- 1...Re4+
- 2.Qxe4#
- 1...Ka5
- 2.Sxb6#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rc4#
- 1...Rf4
- 2.Rxf4#
- 2.Rc4#
- 1...Rg4
- 2.Rc4#
- 1...Rb5
- 2.Rc4#
- 1...Bg5
- 2.Qa8#
- 1...Bf6
- 2.Qa8#
- 1...Be7
- 2.Qa8#
- 1...b5
- 2.Ra6#
- 1...h3!
- 1...Re4+
- 1.Kf2?
- 1...Rf4+
- 2.Rxf4#
- 1...Ka5
- 2.Sxb6#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rc4#
- 1...Re4
- 2.Rc4#
- 2.Qxe4#
- 1...Rg4
- 2.Rc4#
- 1...Rb5
- 2.Rc4#
- 1...Bg5
- 2.Qa8#
- 1...Bf6
- 2.Qa8#
- 1...Be7
- 2.Qa8#
- 1...b5
- 2.Ra6#
- 1...h3!
- 1...Rf4+
- 1.Se3?
- 1...b5
- 2.Ra6#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Bb5#
- 2.Rc4#
- 1...Re4
- 2.Bb5#
- 2.Rc4#
- 2.Qxe4#
- 1...Rf4
- 2.Bb5#
- 2.Rxf4#
- 2.Rc4#
- 1...Rg4
- 2.Bb5#
- 2.Rc4#
- 1...Rb5
- 2.Bxb5#
- 2.Rc4#
- 1...Bg5
- 2.Qa8#
- 1...Bf6
- 2.Qa8#
- 1...Be7
- 2.Qa8#
- 1...h3!
- 1...b5
- 1.Sxb4?
- 1...b5
- 2.Ra6#
- 1...Bg5
- 2.Qa8#
- 1...Bf6
- 2.Qa8#
- 1...Be7
- 2.Qa8#
- 1...h3!
- 1...b5
- 1.Sf4?
- 1...Re4+
- 2.Qxe4#
- 1...Rxf4
- 2.Bb5#
- 2.Rxf4#
- 2.Rc4#
- 1...b5
- 2.Ra6#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Bb5#
- 2.Rc4#
- 1...Rb5
- 2.Bxb5#
- 2.Rc4#
- 1...Bg5
- 2.Qa8#
- 1...Bf6
- 2.Qa8#
- 1...Be7
- 2.Qa8#
- 1...h3!
- 1...Re4+
- 1.Sxb6+?
- 1...Rxb6
- 2.Ra5#
- 2.Rc4#
- 1...cxb6!
- 1...Rxb6
- 1.Sf6?
- 1...Re4+
- 2.Qxe4#
- 1...Bxf6
- 2.Qa8#
- 1...b5
- 2.Ra6#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Bb5#
- 2.Rc4#
- 1...Rf4
- 2.Bb5#
- 2.Rxf4#
- 2.Rc4#
- 1...Rg4
- 2.Bb5#
- 2.Rc4#
- 1...Rb5
- 2.Bxb5#
- 2.Rc4#
- 1...Be7
- 2.Qa8#
- 1...h3!
- 1...Re4+
- 1.Sxc7?
- 1...Re4+
- 2.Qxe4#
- 1...Bxc7
- 2.Qa8#
- 1...b5
- 2.Ra6#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Bb5#
- 2.Rc4#
- 1...Rf4
- 2.Bb5#
- 2.Rxf4#
- 2.Rc4#
- 2.Rxb6#
- 1...Rg4
- 2.Bb5#
- 2.Rc4#
- 2.Rxb6#
- 1...Rb5
- 2.Bxb5#
- 2.Rc4#
- 1...Bg5
- 2.Qa8#
- 1...Bf6
- 2.Qa8#
- 1...Be7
- 2.Qa8#
- 1...h3!
- 1...Re4+
- 1.Bxb4?
- 1...Bg5
- 2.Qa8#
- 1...Bf6
- 2.Qa8#
- 1...Be7
- 2.Qa8#
- 1...b5
- 2.Ra6#
- 1...h3!
- 1...Bg5
- 1.Bf1?
- 1...Re4+
- 2.Qxe4#
- 1...Ka5
- 2.Sxb6#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rc4#
- 1...Rf4
- 2.Rxf4#
- 2.Rc4#
- 1...Rg4
- 2.Rc4#
- 1...Rb5
- 2.Rc4#
- 1...Bg5
- 2.Qa8#
- 1...Bf6
- 2.Qa8#
- 1...Be7
- 2.Qa8#
- 1...b5
- 2.Ra6#
- 1...h3!
- 1...Re4+
- 1.Be2?
- 1...Ka5
- 2.Sxb6#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rc4#
- 1...Re4
- 2.Rc4#
- 2.Qxe4#
- 1...Rf4
- 2.Rxf4#
- 2.Rc4#
- 1...Rg4
- 2.Rc4#
- 1...Rb5
- 2.Rc4#
- 1...Bg5
- 2.Qa8#
- 1...Bf6
- 2.Qa8#
- 1...Be7
- 2.Qa8#
- 1...b5
- 2.Ra6#
- 1...h3!
- 1...Ka5
- 1.Re5?
- 1...Re4+
- 2.Rxe4#
- 1...Ka5
- 2.Sxb6#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rc4#
- 1...Rf4
- 2.Rc4#
- 1...Rg4
- 2.Rc4#
- 1...Rb5
- 2.Rc4#
- 1...Bg5
- 2.Qa8#
- 1...Bf6
- 2.Qa8#
- 1...Be7
- 2.Qa8#
- 1...b5
- 2.Ra6#
- 1...h3!
- 1...Re4+
- 1.Rxb6+?
- 1...Ka5
- 2.Bxb4#
- 2.Ra6#
- 2.Qb5#
- 1...Rb5
- 2.Bxb5#
- 2.Rf4#
- 2.Ra6#
- 2.Qxb5#
- 1...c6!
- 1...Ka5
- 1.Rd6+?
- 1...Ka5
- 2.Bxb4#
- 2.Qb5#
- 1...Rb5
- 2.Bxb5#
- 2.Rf4#
- 2.Qxb5#
- 1...b5
- 2.Ra6#
- 1...c6!
- 1...Ka5
- 1.Re6+?
- 1...Ka5
- 2.Bxb4#
- 2.Qb5#
- 1...Rb5
- 2.Bxb5#
- 2.Rf4#
- 2.Re4#
- 2.Qxb5#
- 1...b5
- 2.Ra6#
- 1...c6!
- 1...Ka5
- 1.Rcf6+?
- 1...Ka5
- 2.Bxb4#
- 2.Qb5#
- 1...Rb5
- 2.Bxb5#
- 2.Rf4#
- 2.Qxb5#
- 1...b5
- 2.Ra6#
- 1...c6!
- 1...Ka5
- 1.Rg6+?
- 1...Ka5
- 2.Bxb4#
- 2.Qb5#
- 1...Rb5
- 2.Bxb5#
- 2.Rf4#
- 2.Rg4#
- 2.Qxb5#
- 1...b5
- 2.Ra6#
- 1...c6!
- 1...Ka5
- 1.Rh6+?
- 1...Ka5
- 2.Bxb4#
- 2.Qb5#
- 1...Rb5
- 2.Bxb5#
- 2.Rf4#
- 2.Qxb5#
- 1...b5
- 2.Ra6#
- 1...c6!
- 1...Ka5
- 1.Rxc7+?
- 1...Ka5
- 2.Bxb4#
- 2.Ra7#
- 2.Qb5#
- 1...Rb5
- 2.Sxb6#
- 2.Bxb5#
- 2.Rf4#
- 2.Rc4#
- 2.Ra7#
- 2.Qxb5#
- 1...b5!
- 1...Ka5
- 1.Kd1?
- Keys
- 1.Bd2!
- threat
- 2.Sc3#
- 1...Re4+
- 2.Qxe4#
- 1...Ka5
- 2.Sxb6#
- 1...Rc4
- 2.Rxc4#
- 1...Rd4
- 2.Rc4#
- 1...Rf4
- 2.Rxf4#
- 2.Rc4#
- 1...Rg4
- 2.Rc4#
- 1...Rb5
- 2.Rc4#
- 1...Bf6
- 2.Qa8#
- 1...b5
- 2.Ra6#
- threat
- 1.Bd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- K(b);P-FLIGHT,P_SPINR(c)::R(F)+S(E),XP(e)
- R(c);::QAB(H)+R(G),DCHECK,XR(c)
- R(c);::QAB(H)+R(G),DCHECK
- R(c);CHECK,OGATEB::QAR(H),XR(c)
- R(c);S_CUTP(e),S_CUTP(f)::R(G)
- B(g);OGATE::QAR(H)
- P(e);OGATE::R(G)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- K(b);P-FLIGHT,P_SPINR(c)::R(F)+S(E),XP(e)
- R(c);::QAB(H)+R(G),DCHECK,XR(c)
- R(c);P_PINB(D)::QAB(H)+R(G),DCHECK
- R(c);::QAB(H)+R(G),DCHECK
- R(c);S_CUTP(e),S_CUTP(f)::R(G)
- B(g);OGATE::QAR(H)
- P(e);OGATE::R(G)
- Refutation
- P(d);
- Try
- K(A);P-FLIGHT
- Vars
- R(c);CHECK,OGATEB::R(F),XR(c)
- K(b);P-FLIGHT,P_SPINR(c)::R(F)+S(E),XP(e)
- R(c);::QAB(H)+R(G),DCHECK,XR(c)
- R(c);::QAB(H)+R(G),DCHECK
- R(c);S_CUTP(e),S_CUTP(f)::R(G)
- B(g);OGATE::QAR(H)
- P(e);OGATE::R(G)
- Refutation
- P(d);
- Try
- K(A);P-FLIGHT
- Vars
- R(c);CHECK,OGATEB::QAR(H),XR(c)
- K(b);P-FLIGHT,P_SPINR(c)::R(F)+S(E),XP(e)
- R(c);::QAB(H)+R(G),DCHECK,XR(c)
- R(c);::QAB(H)+R(G),DCHECK
- R(c);S_CUTP(e),S_CUTP(f)::R(G)
- B(g);OGATE::QAR(H)
- P(e);OGATE::R(G)
- Refutation
- P(d);
- Try
- K(A);S_FLIGHT
- Vars
- R(c);CHECK,OGATEB::R(F),XR(c)
- K(b);P-FLIGHT,P_SPINR(c)::R(F)+S(E),XP(e)
- R(c);::QAB(H)+R(G),DCHECK,XR(c)
- R(c);::QAB(H)+R(G),DCHECK
- R(c);S_CUTP(e),S_CUTP(f)::R(G)
- B(g);OGATE::QAR(H)
- P(e);OGATE::R(G)
- Refutation
- P(d);
- Try
- S(E);
- Vars
- P(e);OGATE::R(G)
- R(c);::QAB(H)+R(G),DCHECK,XR(c)
- B(g);OGATE::QAR(H)
- Refutation
- P(d);
- Try
- S(E);XR(c)
- Vars
- P(e);OGATE::R(G)
- B(g);OGATE::QAR(H)
- Refutation
- P(d);
- Try
- S(E);
- Vars
- R(c);CHECK,OGATEB::QAR(H),XR(c)
- P(e);OGATE::R(G)
- R(c);::QAB(H)+R(G),DCHECK,XR(c)
- B(g);OGATE::QAR(H)
- Refutation
- P(d);
- Try
- S(E);CHECK,XP(e)
- Refutation
- P(f);XS(E)
- Try
- S(E);
- Vars
- R(c);CHECK,OGATEB::QAR(H),XR(c)
- B(g);OGATE,XS(E)::QAR(H)
- P(e);OGATE::R(G)
- R(c);::QAB(H)+R(G),DCHECK,XR(c)
- B(g);OGATE::QAR(H)
- Refutation
- P(d);
- Try
- S(E);XP(f)
- Vars
- R(c);CHECK,OGATEB::QAR(H),XR(c)
- B(g);OGATE,XS(E)::QAR(H)
- P(e);OGATE::R(G)
- R(c);::QAB(H)+R(G),DCHECK,XR(c)
- B(g);OGATE::QAR(H)
- Refutation
- P(d);
- Try
- B(C);XR(c)
- Vars
- B(g);OGATE::QAR(H)
- P(e);OGATE::R(G)
- Refutation
- P(d);
- Try
- B(D);
- Vars
- R(c);CHECK,OGATEB::QAR(H),XR(c)
- K(b);P-FLIGHT,P_SPINR(c)::R(F)+S(E),XP(e)
- R(c);::QAB(H)+R(G),DCHECK,XR(c)
- R(c);::QAB(H)+R(G),DCHECK
- R(c);S_CUTP(e),S_CUTP(f)::R(G)
- B(g);OGATE::QAR(H)
- P(e);OGATE::R(G)
- Refutation
- P(d);
- Try
- B(D);
- Vars
- K(b);P-FLIGHT,P_SPINR(c)::R(F)+S(E),XP(e)
- R(c);::QAB(H)+R(G),DCHECK,XR(c)
- R(c);::QAB(H)+R(G),DCHECK
- R(c);S_CUTP(e),S_CUTP(f)::R(G)
- B(g);OGATE::QAR(H)
- P(e);OGATE::R(G)
- Refutation
- P(d);
- Try
- R(F);
- Vars
- R(c);CHECK,OGATEB::R(F),XR(c)
- K(b);P-FLIGHT,P_SPINR(c)::R(F)+S(E),XP(e)
- R(c);::QAB(H)+R(G),DCHECK,XR(c)
- R(c);::QAB(H)+R(G),DCHECK
- R(c);S_CUTP(e),S_CUTP(f)::R(G)
- B(g);OGATE::QAR(H)
- P(e);OGATE::R(G)
- Refutation
- P(d);
- Try
- R(G);CHECK,XP(e)
- Refutation
- P(f);P_SPINP(f)
- Try
- R(G);CHECK
- Vars
- P(e);OGATE,P_SPINP(e)::R(G)
- Refutation
- P(f);P_SPINP(f)
- Try
- R(G);CHECK
- Vars
- P(e);OGATE,P_SPINP(e)::R(G)
- Refutation
- P(f);P_SPINP(f)
- Try
- R(G);CHECK
- Vars
- P(e);OGATE,P_SPINP(e)::R(G)
- Refutation
- P(f);P_SPINP(f)
- Try
- R(G);CHECK
- Vars
- P(e);OGATE,P_SPINP(e)::R(G)
- Refutation
- P(f);P_SPINP(f)
- Try
- R(G);CHECK
- Vars
- P(e);OGATE,P_SPINP(e)::R(G)
- Refutation
- P(f);P_SPINP(f)
- Try
- R(G);CHECK,XP(f)
- Refutation
- P(e);P_SPINP(e)
- Try
- Actual
- B(C);
- Threat
- S(E)
- Vars
- R(c);CHECK,OGATEB::QAR(H),XR(c)
- K(b);P-FLIGHT,P_SPINR(c)::R(F)+S(E),XP(e)
- R(c);::QAB(H)+R(G),DCHECK,XR(c)
- R(c);::QAB(H)+R(G),DCHECK
- R(c);S_CUTP(e),S_CUTP(f)::R(G)
- B(g);OGATE::QAR(H)
- P(e);OGATE::R(G)
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).