MESON Chess Problem Database
Problem Display
PID: 21657 (6bN/pN3pp1/Pb2P1P1/1Rn1k1BP/2Kp1pQ1/3P4/8/8 w - - 0 1)
Faulkner, William J
Good Companions (April), 1920
#2
11 + 9
| 3132 | The Good Companion Two-Mover | 1922 |
SOLUTION
- SOUND
- Sets
- 1...Ba5
- 2.Rxc5#
- 1...Bc7
- 2.Rxc5#
- 1...Bd8
- 2.Rxc5#
- 1...Bh7
- 2.Sxf7#
- 1...f3
- 2.Qe4#
- 1...fxe6
- 2.Qxf4#
- 1...fxg6
- 2.Sxg6#
- 1...f5
- 2.Qe2#
- 1...f6
- 2.Bxf4#
- 1...Ba5
- Tries
- 1.Sd8?
- threat
- 2.Qxf4#
- 1...Kd6
- 2.Qxf4#
- 1...f3
- 2.Qf4#
- 1...Bxd8!
- threat
- 1.Bh4?
- 1...fxe6
- 2.Qg5#
- 1...fxg6
- 2.Sxg6#
- 1...f5
- 2.Qe2#
- 1...Ba5
- 2.Rxc5#
- 1...Bc7
- 2.Rxc5#
- 1...Bd8
- 2.Rxc5#
- 1...Bh7
- 2.Sxf7#
- 1...f3
- 2.Qe4#
- 1...f6!
- 1...fxe6
- 1.Ra5?
- 1...fxe6
- 2.Qxf4#
- 1...fxg6
- 2.Sxg6#
- 1...f5
- 2.Qe2#
- 1...f6
- 2.Bxf4#
- 1...Bc7
- 2.Rxc5#
- 1...Bd8
- 2.Rxc5#
- 1...Bh7
- 2.Sxf7#
- 1...f3
- 2.Qe4#
- 1...Bxa5!
- 1...fxe6
- 1.Qf3?
- threat
- 2.Qe4#
- 2.Qd5#
- 1...Kxe6
- 2.Qd5#
- 1...fxe6
- 2.Qe4#
- 2.Qxf4#
- 1...f5
- 2.Qe2#
- 2.Qd5#
- 1...Kf5!
- threat
- 1.h6?
- 1...fxe6
- 2.Qxf4#
- 1...fxg6
- 2.Sxg6#
- 1...f5
- 2.Qe2#
- 1...f6
- 2.Bxf4#
- 1...Ba5
- 2.Rxc5#
- 1...Bc7
- 2.Rxc5#
- 1...Bd8
- 2.Rxc5#
- 1...Bh7
- 2.Sxf7#
- 1...f3
- 2.Qe4#
- 1...gxh6!
- 1...fxe6
- 1.exf7?
- 1...Bxf7+
- 2.Sxf7#
- 1...Ba5
- 2.Rxc5#
- 1...Bc7
- 2.Rxc5#
- 1...Bd8
- 2.Rxc5#
- 1...f3
- 2.Qe4#
- 1...Bh7!
- 1...Bxf7+
- 1.gxf7?
- threat
- 2.Sg6#
- 1...Bxf7
- 2.Sxf7#
- 1...g6
- 2.Sxg6#
- 1...Bh7!
- threat
- 1.Sd8?
- Keys
- 1.Be7!
- 1...fxe6
- 2.Qg5#
- 1...fxg6
- 2.Sxg6#
- 1...f5
- 2.Qe2#
- 1...Ba5
- 2.Rxc5#
- 1...Bc7
- 2.Rxc5#
- 1...Bd8
- 2.Rxc5#
- 1...Bh7
- 2.Sxf7#
- 1...f3
- 2.Qe4#
- 1...f6
- 2.Bd6#
- 1...fxe6
- 1.Be7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(e);N_GUARD::R(D),XS(c)
- B(i);N_GUARD::S(K),XP(g)
- P(b);OGATE::QAR1(C)
- P(g);SBLOCK,XP(H)::QAB1(C),XP(b)
- P(g);P_PINP(H),XP(I)::S(K),XP(g)
- P(g);P_PINP(H),SBLOCK::QAR(C)
- P(g);P_PINP(H),SBLOCK::B(E),XP(b)
- Tries
- Try
- S(J);
- Threat
- QAB1(C),XP(b)
- Vars
- K(d);N_SPINS(c),S_FLIGHT::QAB(C),XP(b)
- P(b);::QAB1(C)
- Refutation
- B(e);XS(J)
- Try
- B(E);
- Vars
- P(g);N_GUARD,SBLOCK,XP(H)::QAR2(C)
- P(g);P_PINP(H),XP(I)::S(K),XP(g)
- P(g);P_PINP(H),SBLOCK::QAR(C)
- B(e);N_GUARD::R(D),XS(c)
- B(i);N_GUARD::S(K),XP(g)
- P(b);OGATE::QAR1(C)
- Refutation
- P(g);P_PINP(H)
- Try
- R(D);
- Vars
- P(g);SBLOCK,XP(H)::QAB1(C),XP(b)
- P(g);P_PINP(H),XP(I)::S(K),XP(g)
- P(g);P_PINP(H),SBLOCK::QAR(C)
- P(g);P_PINP(H),SBLOCK::B(E),XP(b)
- B(e);N_GUARD::R(D),XS(c)
- B(i);N_GUARD::S(K),XP(g)
- P(b);OGATE::QAR1(C)
- Refutation
- B(e);N_SPINS(c),XR(D)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- K(d);N_SPINS(c),P-FLIGHT,XP(H)::QAB1(C)
- Refutation
- K(d);P-FLIGHT,P_SPINP(b)
- Try
- P(F);
- Vars
- P(g);SBLOCK,XP(H)::QAB1(C),XP(b)
- P(g);P_PINP(H),XP(I)::S(K),XP(g)
- P(g);P_PINP(H),SBLOCK::QAR(C)
- P(g);P_PINP(H),SBLOCK::B(E),XP(b)
- B(e);N_GUARD::R(D),XS(c)
- B(i);N_GUARD::S(K),XP(g)
- P(b);OGATE::QAR1(C)
- Refutation
- P(h);XP(F)
- Try
- P(H);P_SPINP(H),XP(g)
- Vars
- B(i);CHECK,XP(H)::S(K),XB(i)
- B(e);N_GUARD::R(D),XS(c)
- P(b);OGATE::QAR1(C)
- Refutation
- B(i);N_PINP(H)
- Try
- P(I);XP(g)
- Threat
- S(K)
- Vars
- B(i);P_PINP(H),XP(I)::S(K),XB(i)
- P(h);::S(K),XP(h)
- Refutation
- B(i);
- Try
- Actual
- B(E);
- Vars
- P(g);N_GUARD,SBLOCK,XP(H)::QAR2(C)
- P(g);P_PINP(H),XP(I)::S(K),XP(g)
- P(g);P_PINP(H),SBLOCK::QAR(C)
- B(e);N_GUARD::R(D),XS(c)
- B(i);N_GUARD::S(K),XP(g)
- P(b);OGATE::QAR1(C)
- P(g);P_PINP(H),SBLOCK::B(E)
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).