MESON Chess Problem Database
Problem Display
PID: 70801 (8/1K1p2p1/3p2Q1/2p2RP1/2kpr1N1/8/1R1P2B1/8 w - - 0 1)
Malmstrom, Albert Wilhelm
Source?, 0000
#2
8 + 7
SOLUTION
- SOUND
- Sets
- 1...d5
- 2.Qa6#
- 1...d5
- Tries
- 1.Bxe4?
- 1...d5
- 2.Se5#
- 2.Qa6#
- 1...d3!
- 1...d5
- 1.Rf2?
- 1...Kd3
- 2.Bf1#
- 1...Kd5
- 2.Qf7#
- 1...Rxg4
- 2.Qc2#
- 1...Re1
- 2.Qc2#
- 1...Re2
- 2.Qc2#
- 1...Rf4
- 2.Qc2#
- 1...Re5
- 2.Qc2#
- 1...Re6
- 2.Qc2#
- 1...Re7
- 2.Qc2#
- 1...Re8
- 2.Qc2#
- 1...d3
- 2.Qxe4#
- 1...d5
- 2.Qa6#
- 1...Re3!
- 1...Kd3
- 1.Rd5?
- 1...Kd3
- 2.Bf1#
- 1...Kxd5
- 2.Qf7#
- 1...Rxg4
- 2.Qc2#
- 1...Re1
- 2.Qc2#
- 1...Re2
- 2.Qc2#
- 1...Rf4
- 2.Qc2#
- 1...Re5
- 2.Qc2#
- 1...Re6
- 2.Qc2#
- 1...Re7
- 2.Qc2#
- 1...Re8
- 2.Qc2#
- 1...d3
- 2.Qxe4#
- 1...Re3!
- 1...Kd3
- 1.Re5?
- 1...Kd3
- 2.Bf1#
- 1...Rxg4
- 2.Bd5#
- 2.Qc2#
- 1...Rxe5
- 2.Qc2#
- 1...Re3
- 2.Bd5#
- 1...Re1
- 2.Bd5#
- 2.Qc2#
- 1...Re2
- 2.Bd5#
- 2.Qc2#
- 1...Rf4
- 2.Bd5#
- 2.Qc2#
- 1...d3
- 2.Qxe4#
- 1...d5
- 2.Qa6#
- 1...dxe5!
- 1...Kd3
- 1.Rf8?
- 1...Kd3
- 2.Bf1#
- 1...Kd5
- 2.Qf7#
- 1...Rxg4
- 2.Qc2#
- 1...Re1
- 2.Qc2#
- 1...Re2
- 2.Qc2#
- 1...Rf4
- 2.Qc2#
- 1...Re5
- 2.Qc2#
- 1...Re6
- 2.Qc2#
- 1...Re7
- 2.Qc2#
- 1...Re8
- 2.Qc2#
- 1...d3
- 2.Qxe4#
- 1...d5
- 2.Qa6#
- 1...Re3!
- 1...Kd3
- 1.Bxe4?
- Keys
- 1.Rf4!
- 1...Kd3
- 2.Bf1#
- 1...Kd5
- 2.Qf7#
- 1...Rxf4
- 2.Qc2#
- 1...Re3
- 2.Sxe3#
- 1...Re1
- 2.Qc2#
- 1...Re2
- 2.Qc2#
- 1...Re5
- 2.Qc2#
- 1...Re6
- 2.Qc2#
- 1...Re7
- 2.Qc2#
- 1...Re8
- 2.Qc2#
- 1...d3
- 2.Qxe4#
- 1...d5
- 2.Qa6#
- 1...Kd3
- 1.Rf4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 11
- REMOVED MATES = 0
- Sets
- P(e);OGATE::QAB(G)
- Tries
- Try
- B(C);XR(c)
- Refutation
- P(b);
- Try
- R(E);
- Vars
- K(a);P_SPINR(c),S_FLIGHT::B(C)
- K(a);P_SPINR(c),S_FLIGHT::QAB(G)
- R(c);OGATE,XS(D)::QAR2(G)
- R(c);OGATE::QAR2(G)
- P(b);OGATEB::QAR2(G),XR(c)
- P(e);OGATE,SBLOCK::QAB(G)
- Refutation
- R(c);
- Try
- R(E);
- Vars
- K(a);P_SPINP(b),P_SPINR(c),S_FLIGHT::B(C)
- K(a);OGATEB,P_SPINR(c),S_FLIGHT,XR(E)::QAB(G)
- R(c);OGATE,XS(D)::QAR2(G)
- R(c);OGATE::QAR2(G)
- P(b);OGATEB::QAR2(G),XR(c)
- Refutation
- R(c);
- Try
- R(E);
- Vars
- K(a);P_SPINR(c),S_FLIGHT::B(C)
- R(c);OGATE,XR(E)::QAR2(G)
- R(c);OGATE::B(C)
- P(b);OGATEB::QAR2(G),XR(c)
- P(e);OGATE::QAB(G)
- Refutation
- P(e);XR(E)
- Try
- R(E);
- Vars
- K(a);P_SPINR(c),S_FLIGHT::B(C)
- K(a);P_SPINR(c),S_FLIGHT::QAB(G)
- R(c);OGATE,XS(D)::QAR2(G)
- R(c);OGATE::QAR2(G)
- P(b);OGATEB::QAR2(G),XR(c)
- P(e);OGATE,SBLOCK::QAB(G)
- Refutation
- R(c);
- Try
- Actual
- R(E);
- Vars
- K(a);P_SPINR(c),S_FLIGHT::B(C)
- K(a);P_SPINR(c),S_FLIGHT::QAB(G)
- R(c);OGATE,XR(E)::QAR2(G)
- R(c);N_GUARD,P_SPINP(b)::S(D),XR(c)
- R(c);OGATE,P_SPINP(b)::QAR2(G)
- P(b);OGATEB,P_SPINR(c)::QAR2(G),XR(c)
- P(e);OGATE,SBLOCK::QAB(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).