MESON Chess Problem Database
Problem Display
PID: 60662 (QK6/1B6/6p1/5pp1/4b1P1/4Pk2/3BR1R1/5r2 w - - 0 1)
McIntyre, Donald Glenoe
Cape Times, 1925
#2
8 + 6
| 5639 | Some Problems For My Friends | 1957 |
| 5381 | Mind Sports Olympiad Solving Ty. | 2005 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Ref2#
- 1...Rb1
- 2.Ref2#
- 1...Rc1
- 2.Ref2#
- 1...Rd1
- 2.Ref2#
- 1...Re1
- 2.Ref2#
- 1...Rg1
- 2.Ref2#
- 1...Rh1
- 2.Ref2#
- 1...Rf2
- 2.Rexf2#
- 1...Bd5
- 2.Bxd5#
- 1...Bc6
- 2.Bxc6#
- 1...Bxb7
- 2.Qxb7#
- 1...fxg4
- 2.Bxe4#
- 1...f4
- 2.Bxe4#
- 1...Ra1
- Tries
- 1.Ka7?
- 1...Bxb7
- 2.Qxb7#
- 1...fxg4
- 2.Bxe4#
- 2.Qf8#
- 1...Rf2
- 2.Rexf2#
- 1...Bd5
- 2.Bxd5#
- 1...Bc6
- 2.Bxc6#
- 1...Rb1
- 2.Ref2#
- 1...Rc1
- 2.Ref2#
- 1...Rd1
- 2.Ref2#
- 1...Re1
- 2.Ref2#
- 1...Rg1
- 2.Ref2#
- 1...Rh1
- 2.Ref2#
- 1...f4
- 2.Bxe4#
- 1...Ra1+!
- 1...Bxb7
- 1.Kc7?
- 1...Bxb7
- 2.Qxb7#
- 1...fxg4
- 2.Bxe4#
- 2.Qf8#
- 1...Rf2
- 2.Rexf2#
- 1...Bd5
- 2.Bxd5#
- 1...Bc6
- 2.Bxc6#
- 1...Ra1
- 2.Ref2#
- 1...Rb1
- 2.Ref2#
- 1...Rd1
- 2.Ref2#
- 1...Re1
- 2.Ref2#
- 1...Rg1
- 2.Ref2#
- 1...Rh1
- 2.Ref2#
- 1...f4
- 2.Bxe4#
- 1...Rc1+!
- 1...Bxb7
- 1.Kc8?
- 1...Bxb7+
- 2.Qxb7#
- 1...fxg4
- 2.Bxe4#
- 1...Rf2
- 2.Rexf2#
- 1...Bd5
- 2.Bxd5#
- 1...Bc6
- 2.Bxc6#
- 1...Ra1
- 2.Ref2#
- 1...Rb1
- 2.Ref2#
- 1...Rd1
- 2.Ref2#
- 1...Re1
- 2.Ref2#
- 1...Rg1
- 2.Ref2#
- 1...Rh1
- 2.Ref2#
- 1...f4
- 2.Bxe4#
- 1...Rc1+!
- 1...Bxb7+
- 1.Bc1?
- 1...Bxb7
- 2.Qxb7#
- 1...fxg4
- 2.Bxe4#
- 1...Rf2
- 2.Rexf2#
- 1...Bd5
- 2.Bxd5#
- 1...Bc6
- 2.Bxc6#
- 1...Rd1
- 2.Ref2#
- 1...Re1
- 2.Ref2#
- 1...Rg1
- 2.Ref2#
- 1...Rh1
- 2.Ref2#
- 1...f4
- 2.Bxe4#
- 1...Rxc1!
- 1...Bxb7
- 1.Bd5?
- 1...Bxd5
- 2.Qxd5#
- 1...fxg4
- 2.Bxe4#
- 1...Rf2
- 2.Rexf2#
- 1...Ra1
- 2.Ref2#
- 1...Rc1
- 2.Ref2#
- 1...Rd1
- 2.Ref2#
- 1...Re1
- 2.Ref2#
- 1...Rg1
- 2.Ref2#
- 1...Rh1
- 2.Ref2#
- 1...f4
- 2.Bxe4#
- 1...Rb1+!
- 1...Bxd5
- 1.Bc6?
- 1...Bxc6
- 2.Qxc6#
- 1...fxg4
- 2.Bxe4#
- 1...Rf2
- 2.Rexf2#
- 1...Bd5
- 2.Bxd5#
- 1...Ra1
- 2.Ref2#
- 1...Rc1
- 2.Ref2#
- 1...Rd1
- 2.Ref2#
- 1...Re1
- 2.Ref2#
- 1...Rg1
- 2.Ref2#
- 1...Rh1
- 2.Ref2#
- 1...f4
- 2.Bxe4#
- 1...Rb1+!
- 1...Bxc6
- 1.Qa1?
- threat
- 2.Qxf1#
- 1...Rxa1
- 2.Ref2#
- 1...Rf2
- 2.Rexf2#
- 1...Bd5
- 2.Bxd5#
- 1...Bc6
- 2.Bxc6#
- 1...Rb1
- 2.Ref2#
- 1...Rc1
- 2.Ref2#
- 1...Rd1
- 2.Ref2#
- 1...Re1
- 2.Ref2#
- 1...Rg1
- 2.Ref2#
- 1...Rh1
- 2.Ref2#
- 1...Bxb7!
- threat
- 1.Qa4?
- 1...fxg4
- 2.Bxe4#
- 2.Qxe4#
- 1...Rf2
- 2.Rexf2#
- 1...Ra1
- 2.Ref2#
- 1...Rb1
- 2.Ref2#
- 1...Rc1
- 2.Ref2#
- 1...Rd1
- 2.Ref2#
- 1...Re1
- 2.Ref2#
- 1...Rg1
- 2.Ref2#
- 1...Rh1
- 2.Ref2#
- 1...Bd5
- 2.Bxd5#
- 1...Bc6
- 2.Bxc6#
- 2.Qxc6#
- 1...f4
- 2.Bxe4#
- 2.Qxe4#
- 1...Bxb7!
- 1...fxg4
- 1.Qa6?
- 1...Bxb7
- 2.Qxb7#
- 1...fxg4
- 2.Qf6#
- 1...Rf2
- 2.Rexf2#
- 1...Bd5
- 2.Bxd5#
- 1...Bc6
- 2.Bxc6#
- 2.Qxc6#
- 1...Ra1
- 2.Ref2#
- 1...Rb1
- 2.Ref2#
- 1...Rc1
- 2.Ref2#
- 1...Rd1
- 2.Ref2#
- 1...Re1
- 2.Ref2#
- 1...Rg1
- 2.Ref2#
- 1...Rh1
- 2.Ref2#
- 1...f4!
- 1...Bxb7
- 1.gxf5?
- threat
- 2.Bxe4#
- 1...Bxb7
- 2.Qxb7#
- 1...Rf2
- 2.Rexf2#
- 1...Bd5
- 2.Bxd5#
- 1...Bc6
- 2.Bxc6#
- 1...Rb1
- 2.Ref2#
- 1...gxf5!
- threat
- 1.Ka7?
- Keys
- 1.Qa3!
- 1...Bxb7
- 2.e4#
- 1...fxg4
- 2.Qf8#
- 1...Rf2
- 2.Rexf2#
- 1...Bd5
- 2.Bxd5#
- 1...Bc6
- 2.Bxc6#
- 2.e4#
- 1...Ra1
- 2.Ref2#
- 1...Rb1
- 2.Ref2#
- 1...Rc1
- 2.Ref2#
- 1...Rd1
- 2.Ref2#
- 1...Re1
- 2.Ref2#
- 1...Rg1
- 2.Ref2#
- 1...Rh1
- 2.Ref2#
- 1...f4
- 2.exf4#
- 1...Bxb7
- 1.Qa3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- R(a);N_GUARD::R1(B)
- R(a);N_GUARD,P_PINB(F)::R1(B)
- R(a);N_GUARD::R1(B),XR(a)
- B(c);OGATEB::B(F),XB(c)
- B(c);OGATE,XB(F)::QAB(G),XB(c)
- P(d);N_GUARD,XP(E)::B(F),XB(c)
- P(d);N_GUARD::B(F),XB(c)
- Tries
- Try
- K(H);S_FLIGHT
- Vars
- B(c);OGATE,XB(F)::QAB(G),XB(c)
- R(a);N_GUARD::R1(B),XR(a)
- B(c);OGATEB::B(F),XB(c)
- R(a);N_GUARD::R1(B)
- P(d);N_GUARD::B(F),XB(c)
- Refutation
- R(a);CHECK
- Try
- K(H);S_FLIGHT
- Vars
- B(c);OGATE,XB(F)::QAB(G),XB(c)
- R(a);N_GUARD::R1(B),XR(a)
- B(c);OGATEB::B(F),XB(c)
- R(a);N_GUARD::R1(B)
- P(d);N_GUARD::B(F),XB(c)
- Refutation
- R(a);CHECK
- Try
- K(H);P-FLIGHT
- Vars
- B(c);CHECK,OGATE,XB(F)::QAB(G),XB(c)
- P(d);N_GUARD,XP(E)::B(F),XB(c)
- R(a);N_GUARD::R1(B),XR(a)
- B(c);OGATEB::B(F),XB(c)
- R(a);N_GUARD::R1(B)
- P(d);N_GUARD::B(F),XB(c)
- Refutation
- R(a);CHECK
- Try
- B(A);
- Vars
- B(c);OGATE,XB(F)::QAB(G),XB(c)
- P(d);N_GUARD,XP(E)::B(F),XB(c)
- R(a);N_GUARD::R1(B),XR(a)
- B(c);OGATEB::B(F),XB(c)
- R(a);N_GUARD::R1(B)
- P(d);N_GUARD::B(F),XB(c)
- Refutation
- R(a);XB(A)
- Try
- B(F);
- Vars
- B(c);OGATE,XB(F)::QAB(G),XB(c)
- P(d);N_GUARD,XP(E)::B(F),XB(c)
- R(a);N_GUARD::R1(B),XR(a)
- R(a);N_GUARD::R1(B)
- P(d);N_GUARD::B(F),XB(c)
- Refutation
- R(a);CHECK
- Try
- B(F);
- Vars
- B(c);OGATE,XB(F)::QAB(G),XB(c)
- P(d);N_GUARD,XP(E)::B(F),XB(c)
- R(a);N_GUARD::R1(B),XR(a)
- B(c);OGATEB::B(F),XB(c)
- R(a);N_GUARD::R1(B)
- P(d);N_GUARD::B(F),XB(c)
- Refutation
- R(a);CHECK
- Try
- Q(G);
- Threat
- QAR2(G),XR(a)
- Vars
- R(a);N_GUARD,XQ(G)::R1(B)
- R(a);N_GUARD::R1(B),XR(a)
- B(c);OGATEB::B(F),XB(c)
- R(a);N_GUARD,P_PINB(F)::R1(B)
- R(a);N_GUARD::R1(B)
- Refutation
- B(c);N_SPINB(c),XB(F)
- Try
- Q(G);
- Vars
- R(a);N_GUARD::R1(B),XR(a)
- R(a);N_GUARD::R1(B)
- R(a);N_GUARD,P_PINB(F)::R1(B)
- B(c);OGATEB::B(F),XB(c)
- Refutation
- B(c);N_SPINB(c),XB(F)
- Try
- Q(G);
- Vars
- B(c);N_SPINB(c),OGATE,XB(F)::QAB(G),XB(c)
- P(d);OGATEB,XP(E)::QAR(G)
- R(a);N_GUARD::R1(B),XR(a)
- B(c);OGATEB::B(F),XB(c)
- R(a);N_GUARD::R1(B)
- R(a);N_GUARD,P_PINB(F)::R1(B)
- Refutation
- P(d);
- Try
- P(E);XP(d)
- Threat
- B(F),XB(c)
- Vars
- B(c);OGATE,XB(F)::QAB(G),XB(c)
- R(a);N_GUARD::R1(B),XR(a)
- B(c);OGATEB::B(F),XB(c)
- R(a);N_GUARD,P_PINB(F)::R1(B)
- Refutation
- P(f);XP(E)
- Try
- Actual
- Q(G);
- Vars
- B(c);N_SPINB(c),OGATE,XB(F)::QAR(G)+P(D)
- P(d);OGATEB,XP(E)::QAR(G)
- R(a);N_GUARD::R1(B),XR(a)
- B(c);OGATEB::B(F),XB(c)
- R(a);N_GUARD::R1(B)
- R(a);N_GUARD,P_PINB(F)::R1(B)
- P(d);OGATE::QAR(G)+P(D),XP(d)
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).