MESON Chess Problem Database
Problem Display
PID: 248431 (4Q3/R2pPp2/1nn1k3/1N2p2N/1P2B3/7K/7B/4R3 w - - 0 1)
Bridgwater, Ralph Herbert
British Chess Magazine, 1932
#2
10 + 6
SOLUTION
- SOUND
- Sets
- 1...Sa4
- 2.Qxd7#
- 1...Sc4
- 2.Qxd7#
- 1...Sd5
- 2.Qxd7#
- 1...Sa8
- 2.Qxd7#
- 1...Sc8
- 2.Qxd7#
- 1...Sd8
- 2.exd8Q#
- 2.exd8S#
- 2.exd8B#
- 2.exd8R#
- 1...d5
- 2.Qxc6#
- 1...d6
- 2.Sc7#
- 1...f6
- 2.Sg7#
- 1...Sa4
- Tries
- 1.Bd5+?
- 1...Kxd5
- 2.Qxf7#
- 1...Sxd5
- 2.Qxd7#
- 1...Kf5!
- 1...Kxd5
- 1.Bf5+?
- 1...Kd5
- 2.Qxf7#
- 1...Kxf5!
- 1...Kd5
- 1.Bxc6?
- threat
- 2.Rxe5#
- 1...Sc4
- 2.Qxd7#
- 1...e4
- 2.Sd4#
- 1...d6
- 2.Sd4#
- 1...f6
- 2.Sg7#
- 1...Kf5!
- threat
- 1.Bg6?
- threat
- 2.Qxf7#
- 1...Kd5
- 2.Bxf7#
- 2.Qxf7#
- 1...f5
- 2.Bf7#
- 2.Qf7#
- 1...Sd8
- 2.Rxe5#
- 1...f6
- 2.Sf4#
- 2.Qf7#
- 1...fxg6!
- threat
- 1.Rd1?
- threat
- 2.Sc7#
- 2.Rd6#
- 1...Sc4
- 2.Sc7#
- 2.Qxd7#
- 1...Sd5
- 2.Qxd7#
- 1...Sa8
- 2.Rd6#
- 2.Qxd7#
- 1...Sc8
- 2.Sc7#
- 2.Qxd7#
- 1...d5
- 2.Qxc6#
- 1...d6
- 2.Sc7#
- 2.Rxd6#
- 1...Sd4!
- threat
- 1.Rf1?
- threat
- 2.Sg7#
- 2.Rf6#
- 2.Qxf7#
- 1...Sd5
- 2.Sg7#
- 2.Bf5#
- 2.Qxd7#
- 2.Qxf7#
- 1...Sd8
- 2.Sg7#
- 2.Rf6#
- 2.exd8Q#
- 2.exd8S#
- 2.exd8B#
- 2.exd8R#
- 1...f6
- 2.Sg7#
- 2.Rxf6#
- 1...f5!
- threat
- 1.Rxd7?
- threat
- 2.Sc7#
- 2.Rd6#
- 1...Sc4
- 2.Sc7#
- 1...Sd5
- 2.Rd6#
- 1...Sa8
- 2.Rd6#
- 1...Sc8
- 2.Sc7#
- 1...Sxd7!
- threat
- 1.Bd5+?
- Keys
- 1.Bh7!
- 1...Kd5
- 2.Qxf7#
- 1...Sxb4
- 2.Rxe5#
- 1...Sxa7
- 2.Rxe5#
- 1...Sxe7
- 2.Rxe5#
- 1...f5
- 2.Bg8#
- 1...Sa4
- 2.Qxd7#
- 1...Sc4
- 2.Qxd7#
- 1...Sd5
- 2.Qxd7#
- 1...Sa8
- 2.Qxd7#
- 1...Sc8
- 2.Qxd7#
- 1...Sd4
- 2.Rxe5#
- 1...Sa5
- 2.Rxe5#
- 1...Sb8
- 2.Rxe5#
- 1...Sd8
- 2.Rxe5#
- 1...e4
- 2.Sc7#
- 1...d5
- 2.Qxc6#
- 1...d6
- 2.Sc7#
- 1...f6
- 2.Sf4#
- 1...Kd5
- 1.Bh7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 10
- REMOVED MATES = 0
- Sets
- S(b);N_GUARD::QAB1(J),XP(e)
- P(e);OGATE::QAR2(J),XS(c)
- P(e);SBLOCK::S(F)
- P(f);SBLOCK::S(G)
- Tries
- Try
- B(E);CHECK,P_PINP(a)
- Vars
- K(d);N_SPINP(a),S_FLIGHT,XB(E)::QAB(J),XP(f)
- S(b);XB(E)::QAB1(J),XP(e)
- Refutation
- K(d);N_SPINP(a),S_FLIGHT
- Try
- B(E);CHECK,P_PINP(a)
- Vars
- K(d);N_SPINP(a),S_FLIGHT::QAB(J),XP(f)
- Refutation
- K(d);N_SPINP(a),S_FLIGHT,XB(E)
- Try
- B(E);P_PINP(a),XS(c)
- Threat
- R1(A),XP(a)
- Vars
- S(b);N_GUARD::QAB1(J),XP(e)
- P(a);::S(F)
- P(e);SBLOCK::S(F)
- P(f);SBLOCK::S(G)
- Refutation
- K(d);N_SPINP(a),S_FLIGHT
- Try
- B(E);P_PINP(a)
- Threat
- QAB1(J),XP(f)
- Vars
- S(c);N_GUARD::R1(A),XP(a)
- Refutation
- P(f);XB(E)
- Try
- R(A);
- Threat
- DUALS(2)
- Vars
- S(b);N_GUARD::QAB1(J),XP(e)
- P(e);OGATE::QAR2(J),XS(c)
- Refutation
- S(c);
- Try
- R(A);
- Threat
- DUALS(3)
- Refutation
- P(f);
- Try
- R(H);XP(e)
- Threat
- DUALS(2)
- Vars
- S(b);::S(F)
- S(b);::R1(H)
- Refutation
- S(b);XR(H)
- Try
- Actual
- B(E);P_PINP(a)
- Vars
- K(d);N_SPINP(a),S_FLIGHT::QAB(J),XP(f)
- S(c);N_GUARD,XP(D)::R1(A),XP(a)
- S(c);N_GUARD,XR(H)::R1(A),XP(a)
- S(c);N_GUARD,P_SPINS(c),XP(I)::R1(A),XP(a)
- P(f);OGATEB,SBLOCK::B(E)
- S(b);N_GUARD::QAB1(J),XP(e)
- S(c);N_GUARD::R1(A),XP(a)
- P(a);::S(F)
- P(e);OGATE::QAR2(J),XS(c)
- P(e);SBLOCK::S(F)
- P(f);SBLOCK::S(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).