MESON Chess Problem Database
Problem Display
PID: 53608 (1n2k2r/2p1B1p1/n1P1Q3/p2N3b/B7/6K1/8/8 w k - 0 1)
Dobbs, Gilbert S
The Chess Review, 1934
#2
6 + 8
SOLUTION
- SOUND
- Sets
- 1...Rh6
- 2.Qg8#
- 1...Rh7
- 2.Qg8#
- 1...Rf8
- 2.Bh4#
- 2.Bg5#
- 2.Bf6#
- 1...Rg8
- 2.Qxg8#
- 1...Bd1
- 2.Qg6#
- 1...Be2
- 2.Qg6#
- 1...Bf3
- 2.Qg6#
- 1...Bg4
- 2.Qg6#
- 1...Bg6
- 2.Qxg6#
- 1...Bf7
- 2.Qc8#
- 1...Sb4
- 2.Sxc7#
- 1...Sc5
- 2.Sxc7#
- 1...Sxc6
- 2.Bxc6#
- 1...Sd7
- 2.cxd7#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...Rh6
- Tries
- 1.Kg2?
- 1...Sxc6
- 2.Bxc6#
- 1...Rh6
- 2.Qg8#
- 1...Rh7
- 2.Qg8#
- 1...Rf8
- 2.Bh4#
- 2.Bg5#
- 2.Bf6#
- 1...Rg8
- 2.Qxg8#
- 1...Bd1
- 2.Qg6#
- 1...Be2
- 2.Qg6#
- 1...Bg4
- 2.Qg6#
- 1...Bg6
- 2.Qxg6#
- 1...Bf7
- 2.Qc8#
- 1...Sb4
- 2.Sxc7#
- 1...Sc5
- 2.Sxc7#
- 1...Sd7
- 2.cxd7#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...Bf3+!
- 1...Sxc6
- 1.Kf4?
- 1...Rf8+
- 2.Bf6#
- 1...Sxc6
- 2.Bxc6#
- 1...Rh6
- 2.Qg8#
- 1...Rh7
- 2.Qg8#
- 1...Rg8
- 2.Qxg8#
- 1...Bd1
- 2.Qg6#
- 1...Be2
- 2.Qg6#
- 1...Bf3
- 2.Qg6#
- 1...Bg4
- 2.Qg6#
- 1...Bg6
- 2.Qxg6#
- 1...Bf7
- 2.Qc8#
- 1...Sb4
- 2.Sxc7#
- 1...Sc5
- 2.Sxc7#
- 1...Sd7
- 2.cxd7#
- 1...g6
- 2.Sf6#
- 1...g5+!
- 1...Rf8+
- 1.Bb5?
- 1...Sxc6
- 2.Bxc6#
- 1...Rh6
- 2.Qg8#
- 1...Rh7
- 2.Qg8#
- 1...Rf8
- 2.Bh4#
- 2.Bg5#
- 2.Bf6#
- 1...Rg8
- 2.Qxg8#
- 1...Bd1
- 2.Qg6#
- 1...Be2
- 2.Qg6#
- 1...Bf3
- 2.Qg6#
- 1...Bg4
- 2.Qg6#
- 1...Bg6
- 2.Qxg6#
- 1...Bf7
- 2.Qc8#
- 1...Sb4
- 2.Sxc7#
- 1...Sc5
- 2.Sxc7#
- 1...Sd7
- 2.cxd7#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...a4!
- 1...Sxc6
- 1.Kg2?
- Keys
- 1.Kf2!
- 1...Rf8+
- 2.Bf6#
- 1...Sxc6
- 2.Bxc6#
- 1...Rh6
- 2.Qg8#
- 1...Rh7
- 2.Qg8#
- 1...Rg8
- 2.Qxg8#
- 1...Bd1
- 2.Qg6#
- 1...Be2
- 2.Qg6#
- 1...Bf3
- 2.Qg6#
- 1...Bg4
- 2.Qg6#
- 1...Bg6
- 2.Qxg6#
- 1...Bf7
- 2.Qc8#
- 1...Sb4
- 2.Sxc7#
- 1...Sc5
- 2.Sxc7#
- 1...Sd7
- 2.cxd7#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...Rf8+
- 1.Kf2!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(h);N_GUARD::QAR2(E)
- R(h);N_GUARD::QAR2(E),XR(h)
- B(b);N_GUARD::QAB(E)
- B(b);N_GUARD::QAB(E),XB(b)
- B(b);SBLOCK::QAR2(E)
- S(c);N_GUARD::S(C),XP(d)
- S(f);OGATE,P_SPINS(f),XP(D)::B(B),XS(f)
- S(f);OGATE::P(D),XS(f)
- P(e);N_GUARD::S(C)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- S(f);OGATE,P_SPINS(f),XP(D)::B(B),XS(f)
- R(h);N_GUARD::QAR2(E)
- R(h);N_GUARD::QAR2(E),XR(h)
- B(b);N_GUARD::QAB(E)
- B(b);N_GUARD::QAB(E),XB(b)
- B(b);SBLOCK::QAR2(E)
- S(c);N_GUARD::S(C),XP(d)
- S(f);OGATE::P(D),XS(f)
- P(e);N_GUARD::S(C)
- Refutation
- B(b);CHECK
- Try
- K(A);S_FLIGHT
- Vars
- R(h);CHECK,SBLOCK::QAR(E)+B(F)
- S(f);OGATE,P_SPINS(f),XP(D)::B(B),XS(f)
- R(h);N_GUARD::QAR2(E)
- R(h);N_GUARD::QAR2(E),XR(h)
- B(b);N_GUARD::QAB(E)
- B(b);N_GUARD::QAB(E),XB(b)
- B(b);SBLOCK::QAR2(E)
- S(c);N_GUARD::S(C),XP(d)
- S(f);OGATE::P(D),XS(f)
- P(e);N_GUARD::S(C)
- Refutation
- P(e);CHECK
- Try
- B(B);
- Vars
- S(f);OGATE,P_SPINS(f),XP(D)::B(B),XS(f)
- R(h);N_GUARD::QAR2(E)
- R(h);N_GUARD::QAR2(E),XR(h)
- B(b);N_GUARD::QAB(E)
- B(b);N_GUARD::QAB(E),XB(b)
- B(b);SBLOCK::QAR2(E)
- S(c);N_GUARD::S(C),XP(d)
- S(f);OGATE::P(D),XS(f)
- P(e);N_GUARD::S(C)
- Refutation
- P(a);
- Try
- Actual
- K(A);S_FLIGHT
- Vars
- R(h);CHECK,SBLOCK::QAR(E)+B(F)
- S(f);OGATE,P_SPINS(f),XP(D)::B(B),XS(f)
- R(h);N_GUARD::QAR2(E)
- R(h);N_GUARD::QAR2(E),XR(h)
- B(b);N_GUARD::QAB(E)
- B(b);N_GUARD::QAB(E),XB(b)
- B(b);SBLOCK::QAR2(E)
- S(c);N_GUARD::S(C),XP(d)
- S(f);OGATE::P(D),XS(f)
- P(e);N_GUARD::S(C)
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).