MESON Chess Problem Database
Problem Display
PID: 21265 (8/2Q2K2/1p6/1B5n/3B4/N4P2/1b1k1rPN/nR6 w - - 0 1)
White, Alain Campbell
Westminster Gazette, 1917
#2
9 + 6
| 3360 | Simple Two-move Themes | 1924 |
| 887 | Mate in Two Moves | 1931 |
| 5066 | Classic Chess Problems by Pioneer Composers | 1970 |
SOLUTION
- SOUND
- Sets
- 1...Rf1
- 2.Sxf1#
- 1...Re2
- 2.Sf1#
- 1...Rxg2
- 2.Sf1#
- 1...Rxf3+
- 2.Sxf3#
- 1...Bc1
- 2.Qxc1#
- 1...Bxa3
- 2.Qc3#
- 1...Bc3
- 2.Qxc3#
- 1...Bxd4
- 2.Qc1#
- 1...Sc2
- 2.Qxc2#
- 1...Sb3
- 2.Qc2#
- 1...Sg3
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sf6
- 2.Qf4#
- 1...Sg7
- 2.Qf4#
- 1...Rf1
- Tries
- 1.Kg6?
- 1...Sf4+
- 2.Qxf4#
- 1...Rxf3
- 2.Sxf3#
- 1...Bxa3
- 2.Qc3#
- 1...Bxd4
- 2.Qc1#
- 1...Bc1
- 2.Qxc1#
- 1...Rf1
- 2.Sxf1#
- 1...Re2
- 2.Sf1#
- 1...Bc3
- 2.Qxc3#
- 1...Sc2
- 2.Qxc2#
- 1...Sb3
- 2.Qc2#
- 1...Sg3
- 2.Qf4#
- 1...Sf6
- 2.Qf4#
- 1...Sg7
- 2.Qf4#
- 1...Rxg2+!
- 1...Sf4+
- 1.Kf8?
- 1...Rxf3+
- 2.Sxf3#
- 1...Rxg2
- 2.Sf1#
- 1...Bxd4
- 2.Qc1#
- 1...Bc1
- 2.Qxc1#
- 1...Rf1
- 2.Sxf1#
- 1...Re2
- 2.Sf1#
- 1...Bc3
- 2.Qxc3#
- 1...Sc2
- 2.Qxc2#
- 1...Sb3
- 2.Qc2#
- 1...Sg3
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sf6
- 2.Qf4#
- 1...Sg7
- 2.Qf4#
- 1...Bxa3+!
- 1...Rxf3+
- 1.Bxf2?
- threat
- 2.Sf1#
- 1...Bc1
- 2.Qxc1#
- 1...Sg3!
- threat
- 1.Bc3+?
- 1...Ke3
- 2.Sg4#
- 2.Qe5#
- 1...Bxc3!
- 1...Ke3
- 1.Ba6?
- 1...Rxf3+
- 2.Sxf3#
- 1...Rxg2
- 2.Sf1#
- 1...Bxa3
- 2.Qc3#
- 1...Bxd4
- 2.Qc1#
- 1...Bc1
- 2.Qxc1#
- 1...Rf1
- 2.Sxf1#
- 1...Re2
- 2.Sf1#
- 1...Bc3
- 2.Qxc3#
- 1...Sc2
- 2.Qxc2#
- 1...Sb3
- 2.Qc2#
- 1...Sg3
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sf6
- 2.Qf4#
- 1...Sg7
- 2.Qf4#
- 1...b5!
- 1...Rxf3+
- 1.Rxa1?
- threat
- 2.Qc2#
- 1...Rxf3+
- 2.Sxf3#
- 1...Bxa3
- 2.Qc3#
- 1...Bxd4
- 2.Qc1#
- 1...Bc1
- 2.Qxc1#
- 1...Bc3
- 2.Qxc3#
- 1...Bxa1!
- threat
- 1.Rf1?
- threat
- 2.Sb1#
- 1...Rxf3+
- 2.Sxf3#
- 1...Bxa3
- 2.Qc3#
- 1...Bxd4
- 2.Qc1#
- 1...Bc3
- 2.Qxc3#
- 1...Rxf1!
- threat
- 1.Rg1?
- threat
- 2.Sb1#
- 1...Rxf3+
- 2.Sxf3#
- 1...Bxa3
- 2.Qc3#
- 1...Bxd4
- 2.Qc1#
- 1...Bc3
- 2.Qxc3#
- 1...Rf1!
- threat
- 1.Rh1?
- threat
- 2.Sb1#
- 1...Rxf3+
- 2.Sxf3#
- 1...Bxa3
- 2.Qc3#
- 1...Bxd4
- 2.Qc1#
- 1...Bc3
- 2.Qxc3#
- 1...Rf1!
- threat
- 1.Qc4?
- threat
- 2.Qd3#
- 1...Rxf3+
- 2.Sxf3#
- 1...Bc1
- 2.Qxc1#
- 1...Sf4!
- threat
- 1.Qc5?
- threat
- 2.Be3#
- 1...Rxf3+
- 2.Sxf3#
- 1...Bxd4
- 2.Qxd4#
- 2.Qc1#
- 1...Bc1
- 2.Qxc1#
- 1...Re2
- 2.Sf1#
- 1...Sc2
- 2.Qxc2#
- 1...bxc5!
- threat
- 1.g3?
- 1...Rxf3+
- 2.Sxf3#
- 1...Bxa3
- 2.Qc3#
- 1...Bxd4
- 2.Qc1#
- 1...Sxg3
- 2.Qf4#
- 1...Bc1
- 2.Qxc1#
- 1...Sf4
- 2.Qxf4#
- 1...Rf1
- 2.Sxf1#
- 1...Re2
- 2.Sf1#
- 1...Rg2
- 2.Sf1#
- 1...Bc3
- 2.Qxc3#
- 1...Sc2
- 2.Qxc2#
- 1...Sb3
- 2.Qc2#
- 1...Sf6
- 2.Qf4#
- 1...Sg7
- 2.Qf4#
- 1...Rxh2!
- 1...Rxf3+
- 1.Kg6?
- Keys
- 1.g4!
- 1...Rxf3+
- 2.Sxf3#
- 1...Rxh2
- 2.Qxh2#
- 1...Bxa3
- 2.Qc3#
- 1...Bxd4
- 2.Qc1#
- 1...Bc1
- 2.Qxc1#
- 1...Sf4
- 2.Qxf4#
- 1...Rf1
- 2.Sxf1#
- 1...Re2
- 2.Sf1#
- 1...Rg2
- 2.Sf1#
- 1...Bc3
- 2.Qxc3#
- 1...Sc2
- 2.Qxc2#
- 1...Sb3
- 2.Qc2#
- 1...Sg3
- 2.Qf4#
- 1...Sf6
- 2.Qf4#
- 1...Sg7
- 2.Qf4#
- 1...Rxf3+
- 1.g4!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(d);N_GUARD::S(C),XR(d)
- R(d);N_GUARD,N_PINP(E)::S(C)
- R(d);N_GUARD,N_PINP(E),XP(B)::S(C)
- R(d);CHECK,XP(E)::S(C),XR(d)
- B(b);N_GUARD::QAB1(H),XB(b)
- B(b);N_GUARD,XS(D)::QAB1(H)
- B(b);N_GUARD,XB(F)::QAB1(H)
- S(a);N_GUARD::QAR1(H),XS(a)
- S(a);N_GUARD::QAR1(H)
- S(e);N_GUARD::QAB(H)
- S(e);N_GUARD,N_PINP(E)::QAB(H),XS(e)
- S(e);N_GUARD,N_PINP(E)::QAB(H)
- Tries
- Try
- K(I);N_SPINP(E),S_FLIGHT
- Vars
- S(e);CHECK,N_GUARD::QAB(H),XS(e)
- R(d);XP(E)::S(C),XR(d)
- B(b);N_GUARD,XS(D)::QAB1(H)
- B(b);N_GUARD,XB(F)::QAB1(H)
- B(b);N_GUARD::QAB1(H),XB(b)
- R(d);N_GUARD::S(C),XR(d)
- R(d);N_GUARD::S(C)
- S(a);N_GUARD::QAR1(H),XS(a)
- S(a);N_GUARD::QAR1(H)
- S(e);N_GUARD::QAB(H)
- Refutation
- R(d);CHECK,XP(B)
- Try
- K(I);P-FLIGHT
- Vars
- R(d);CHECK,XP(E)::S(C),XR(d)
- R(d);N_GUARD,N_PINP(E),XP(B)::S(C)
- B(b);N_GUARD,XB(F)::QAB1(H)
- B(b);N_GUARD::QAB1(H),XB(b)
- R(d);N_GUARD::S(C),XR(d)
- R(d);N_GUARD,N_PINP(E)::S(C)
- S(a);N_GUARD::QAR1(H),XS(a)
- S(a);N_GUARD::QAR1(H)
- S(e);N_GUARD::QAB(H)
- S(e);N_GUARD,N_PINP(E)::QAB(H),XS(e)
- S(e);N_GUARD,N_PINP(E)::QAB(H)
- Refutation
- B(b);CHECK,XS(D)
- Try
- B(F);N_SPINP(E),XR(d)
- Threat
- S(C)
- Vars
- B(b);N_GUARD::QAB1(H),XB(b)
- Refutation
- S(e);
- Try
- B(F);CHECK
- Refutation
- B(b);XB(F)
- Try
- B(G);
- Vars
- R(d);CHECK,XP(E)::S(C),XR(d)
- R(d);N_GUARD,N_PINP(E),XP(B)::S(C)
- B(b);N_GUARD,XS(D)::QAB1(H)
- B(b);N_GUARD,XB(F)::QAB1(H)
- B(b);N_GUARD::QAB1(H),XB(b)
- R(d);N_GUARD::S(C),XR(d)
- R(d);N_GUARD,N_PINP(E)::S(C)
- S(a);N_GUARD::QAR1(H),XS(a)
- S(a);N_GUARD::QAR1(H)
- S(e);N_GUARD::QAB(H)
- S(e);N_GUARD,N_PINP(E)::QAB(H),XS(e)
- S(e);N_GUARD,N_PINP(E)::QAB(H)
- Refutation
- P(f);
- Try
- R(A);XS(a)
- Threat
- QAR1(H)
- Vars
- R(d);CHECK,XP(E)::S(C),XR(d)
- B(b);N_GUARD,XS(D)::QAB1(H)
- B(b);N_GUARD,XB(F)::QAB1(H)
- B(b);N_GUARD::QAB1(H),XB(b)
- Refutation
- B(b);XR(A)
- Try
- R(A);
- Threat
- S(D)
- Vars
- R(d);CHECK,XP(E)::S(C),XR(d)
- B(b);N_GUARD,XS(D)::QAB1(H)
- B(b);N_GUARD,XB(F)::QAB1(H)
- B(b);N_GUARD::QAB1(H),XB(b)
- Refutation
- R(d);XR(A)
- Try
- R(A);
- Threat
- S(D)
- Vars
- R(d);CHECK,XP(E)::S(C),XR(d)
- B(b);N_GUARD,XS(D)::QAB1(H)
- B(b);N_GUARD,XB(F)::QAB1(H)
- B(b);N_GUARD::QAB1(H),XB(b)
- Refutation
- R(d);
- Try
- R(A);
- Threat
- S(D)
- Vars
- R(d);CHECK,XP(E)::S(C),XR(d)
- B(b);N_GUARD,XS(D)::QAB1(H)
- B(b);N_GUARD,XB(F)::QAB1(H)
- B(b);N_GUARD::QAB1(H),XB(b)
- Refutation
- R(d);
- Try
- Q(H);
- Threat
- QAR1(H)
- Vars
- R(d);CHECK,XP(E)::S(C),XR(d)
- B(b);N_GUARD::QAB1(H),XB(b)
- Refutation
- S(e);N_PINP(E)
- Try
- Q(H);
- Threat
- B(F)
- Vars
- R(d);CHECK,XP(E)::S(C),XR(d)
- B(b);N_GUARD::QAB1(H),XB(b)
- R(d);N_GUARD,N_PINP(E)::S(C)
- S(a);N_GUARD::QAR1(H),XS(a)
- Refutation
- P(f);XQ(H)
- Try
- P(B);
- Vars
- R(d);CHECK,XP(E)::S(C),XR(d)
- B(b);N_GUARD,XS(D)::QAB1(H)
- B(b);N_GUARD,XB(F)::QAB1(H)
- S(e);N_GUARD,XP(B)::QAB(H)
- B(b);N_GUARD::QAB1(H),XB(b)
- S(e);N_GUARD,N_PINP(E)::QAB(H),XS(e)
- R(d);N_GUARD::S(C),XR(d)
- R(d);N_GUARD,N_PINP(E)::S(C)
- S(a);N_GUARD::QAR1(H),XS(a)
- S(a);N_GUARD::QAR1(H)
- S(e);N_GUARD,N_PINP(E)::QAB(H)
- S(e);N_GUARD::QAB(H)
- Refutation
- R(d);N_PINP(E),XS(C)
- Try
- Actual
- P(B);
- Vars
- R(d);CHECK,XP(E)::S(C),XR(d)
- R(d);N_PINP(E),OGATE,XS(C)::QAR(H),XR(d)
- B(b);N_GUARD,XS(D)::QAB1(H)
- B(b);N_GUARD,XB(F)::QAB1(H)
- B(b);N_GUARD::QAB1(H),XB(b)
- S(e);N_GUARD,N_PINP(E)::QAB(H),XS(e)
- R(d);N_GUARD::S(C),XR(d)
- R(d);N_GUARD,N_PINP(E)::S(C)
- S(a);N_GUARD::QAR1(H),XS(a)
- S(a);N_GUARD::QAR1(H)
- S(e);N_GUARD::QAB(H)
- S(e);N_GUARD,N_PINP(E)::QAB(H)
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).