MESON Chess Problem Database
Problem Display
PID: 63504 (8/5B1r/K7/6PP/pk1B1N1R/pN1Pp3/2b3pp/2Qn4 w - - 0 1)
Eckett, SW
Chess, 1945
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Bb1
- 2.Bc5#
- 2.Qc4#
- 2.Qc5#
- 1...Bxb3
- 2.Bc5#
- 2.Qc5#
- 1...Bxd3+
- 2.Sxd3#
- 1...Sb2
- 2.Qe1#
- 1...Sf2
- 2.Qe1#
- 1...Sc3
- 2.Bc5#
- 1...Bb1
- Tries
- 1.Sa1?
- threat
- 2.Sxc2#
- 2.Sd5#
- 1...Bxd3+
- 2.Sxd3#
- 1...Rxf7
- 2.Sd5#
- 1...Bb1
- 2.Sd5#
- 2.Bc5#
- 2.Qc4#
- 2.Qc5#
- 1...Bb3
- 2.Bc5#
- 2.Qc5#
- 1...Sc3
- 2.Sxc2#
- 1...Rh6+!
- threat
- 1.Sa5?
- threat
- 2.Sd5#
- 2.Sc6#
- 1...Bxd3+
- 2.Sxd3#
- 1...Rxf7
- 2.Sd5#
- 1...Bb3
- 2.Sc6#
- 2.Bc5#
- 2.Qc5#
- 1...Sc3
- 2.Sc6#
- 1...Rh6+!
- threat
- 1.Be5?
- threat
- 2.Se2#
- 2.Sxg2#
- 2.Sh3#
- 2.Sg6#
- 1...Rh6+
- 2.Sg6#
- 1...Bxd3+
- 2.Sxd3#
- 1...Rxh5
- 2.Sxh5#
- 1...Bxb3
- 2.Sd5#
- 2.Bd6#
- 1...axb3
- 2.Se6#
- 1...g1Q
- 2.Sg2#
- 1...g1S
- 2.Se2#
- 2.Sg2#
- 2.Sh3#
- 2.Sg6#
- 1...g1B
- 2.Se2#
- 2.Sg2#
- 2.Sh3#
- 2.Sg6#
- 1...g1R
- 2.Sg2#
- 1...h1Q
- 2.Sh3#
- 1...h1R
- 2.Sh3#
- 1...Sb2
- 2.Qe1#
- 1...Sf2
- 2.Qe1#
- 1...Sc3
- 2.Bd6#
- 1...e2
- 2.Sxe2#
- 2.Sxg2#
- 2.Sh3#
- 2.Sg6#
- 1...Rxf7!
- threat
- 1.Bb6?
- threat
- 2.Se2#
- 2.Ba5#
- 1...Bxd3+
- 2.Sxd3#
- 1...Kc3
- 2.Ba5#
- 1...Rxh5
- 2.Ba5#
- 1...Bxb3
- 2.Sd5#
- 2.Ba5#
- 2.Bc5#
- 2.Qc5#
- 1...axb3
- 2.Se2#
- 2.Sd5#
- 1...g1Q
- 2.Ba5#
- 1...g1R
- 2.Ba5#
- 1...h1Q
- 2.Ba5#
- 1...h1R
- 2.Ba5#
- 1...Rh6
- 2.Se2#
- 1...Sb2
- 2.Ba5#
- 2.Qe1#
- 1...Sf2
- 2.Ba5#
- 2.Qe1#
- 1...Sc3
- 2.Ba5#
- 2.Bc5#
- 1...e2
- 2.Sxe2#
- 2.Ba5#
- 1...Rxf7!
- threat
- 1.Bf6?
- threat
- 2.Se2#
- 2.Sxg2#
- 2.Sh3#
- 2.Sg6#
- 1...Bxd3+
- 2.Sxd3#
- 1...Rxh5
- 2.Sxh5#
- 1...Bxb3
- 2.Sd5#
- 2.Be7#
- 1...axb3
- 2.Se6#
- 1...g1Q
- 2.Sg2#
- 1...g1S
- 2.Se2#
- 2.Sg2#
- 2.Sh3#
- 2.Sg6#
- 1...g1B
- 2.Se2#
- 2.Sg2#
- 2.Sh3#
- 2.Sg6#
- 1...g1R
- 2.Sg2#
- 1...h1Q
- 2.Sh3#
- 1...h1R
- 2.Sh3#
- 1...Sb2
- 2.Qe1#
- 1...Sf2
- 2.Qe1#
- 1...Sc3
- 2.Be7#
- 1...e2
- 2.Sxe2#
- 2.Sxg2#
- 2.Sh3#
- 2.Sg6#
- 1...Rxf7!
- threat
- 1.Qd2+?
- 1...Sc3
- 2.Bxc3#
- 2.Bc5#
- 2.Qxc3#
- 1...exd2!
- 1...Sc3
- 1.Qxc2?
- threat
- 2.Sd5#
- 2.Bc5#
- 2.Qc4#
- 2.Qc5#
- 1...Rxf7
- 2.Sd5#
- 2.Bc5#
- 2.Qc4#
- 1...axb3
- 2.Qxb3#
- 2.Qc4#
- 1...a2
- 2.Bc5#
- 2.Qc5#
- 1...Sc3
- 2.Bxc3#
- 2.Bc5#
- 2.Qxc3#
- 1...Sb2
- 2.Sd5#
- 2.Bc3#
- 2.Bc5#
- 2.Qc3#
- 2.Qc5#
- 1...Rh6+!
- threat
- 1.Sa1?
- Keys
- 1.Bg7!
- threat
- 2.Se2#
- 2.Sxg2#
- 2.Sh3#
- 2.Sg6#
- 1...Rh6+
- 2.Sg6#
- 1...Bxd3+
- 2.Sxd3#
- 1...Rxh5
- 2.Sxh5#
- 1...Rxg7
- 2.Se2#
- 1...Bxb3
- 2.Sd5#
- 2.Bf8#
- 1...axb3
- 2.Se6#
- 1...g1Q
- 2.Sg2#
- 1...g1S
- 2.Se2#
- 2.Sg2#
- 2.Sh3#
- 2.Sg6#
- 1...g1B
- 2.Se2#
- 2.Sg2#
- 2.Sh3#
- 2.Sg6#
- 1...g1R
- 2.Sg2#
- 1...h1Q
- 2.Sh3#
- 1...h1R
- 2.Sh3#
- 1...Sb2
- 2.Qe1#
- 1...Sf2
- 2.Qe1#
- 1...Sc3
- 2.Bf8#
- 1...e2
- 2.Sxe2#
- 2.Sxg2#
- 2.Sh3#
- 2.Sg6#
- threat
- 1.Bg7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 8
- REMOVED MATES = 0
- Sets
- B(b);CHECK,XP(C)::S(E),XB(b)
- S(a);OGATE::QAB(A)
- S(a);SBLOCK::B(D)
- Tries
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- B(b);CHECK,XP(C)::S(E),XB(b)
- R(i);XB(J)::S(E)
- S(a);::S(B),XB(b)
- Refutation
- R(i);CHECK
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- B(b);CHECK,XP(C)::S(E),XB(b)
- R(i);XB(J)::S(E)
- S(a);::S(B)
- Refutation
- R(i);CHECK
- Try
- B(D);
- Threat
- DUALS(4)
- Vars
- R(i);CHECK::R(F)+S(E)
- B(b);CHECK,XP(C)::R(F)+S(E),DCHECK,XB(b)
- R(i);XP(H)::R(F)+S(E),XR(i)
- P(g);SBLOCK,XS(B)::R(F)+S(E)
- P(c);::R(F)+S(E)
- P(d);::R(F)+S(E)
- S(a);OGATE::QAB(A)
- S(a);SBLOCK::B(D)
- Refutation
- R(i);XB(J)
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- B(b);CHECK,XP(C)::R(F)+S(E),DCHECK,XB(b)
- K(h);P_SPINB(b),S_FLIGHT::B(D)
- R(i);XP(H)::B(D)
- P(c);::B(D)
- P(d);::B(D)
- R(i);P_PINB(D)::R(F)+S(E)
- Refutation
- R(i);XB(J)
- Try
- B(D);
- Threat
- DUALS(4)
- Vars
- B(b);CHECK,XP(C)::R(F)+S(E),DCHECK,XB(b)
- R(i);XP(H)::R(F)+S(E),XR(i)
- P(g);SBLOCK,XS(B)::R(F)+S(E)
- P(c);::R(F)+S(E)
- P(d);::R(F)+S(E)
- S(a);OGATE::QAB(A)
- S(a);SBLOCK::B(D)
- Refutation
- R(i);XB(J)
- Try
- Q(A);CHECK
- Refutation
- P(f);XQ(A)
- Try
- Q(A);XB(b)
- Threat
- DUALS(4)
- Refutation
- R(i);CHECK
- Try
- Actual
- B(D);
- Threat
- DUALS(4)
- Vars
- R(i);CHECK::R(F)+S(E)
- B(b);CHECK,XP(C)::R(F)+S(E),DCHECK,XB(b)
- R(i);XP(H)::R(F)+S(E),XR(i)
- R(i);XB(D)::R(F)+S(E)
- P(g);SBLOCK,XS(B)::R(F)+S(E)
- P(c);::R(F)+S(E)
- P(d);::R(F)+S(E)
- S(a);OGATE::QAB(A)
- S(a);SBLOCK::B(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).