MESON Chess Problem Database
Problem Display
PID: 58137 (b2bn3/3ppp1B/Qp2k3/1N3R2/2PnpR2/4p1N1/8/B6K w - - 0 1)
Driver, John Edward
Chess Life, 1959
#2
9 + 11
SOLUTION
- SOUND
- Sets
- 1...Bd5
- 2.cxd5#
- 1...Sc2
- 2.Re5#
- 1...Se2
- 2.Re5#
- 1...Sb3
- 2.Re5#
- 1...Sxf5
- 2.Bxf5#
- 1...Sd6
- 2.Sxd4#
- 1...d5
- 2.Qc8#
- 1...d6
- 2.Qc8#
- 1...f6
- 2.Bg8#
- 1...Bd5
- Tries
- 1.Bxd4?
- threat
- 2.Re5#
- 1...d5
- 2.Qc8#
- 1...d6
- 2.Qc8#
- 1...f6
- 2.Bg8#
- 1...Bc7!
- threat
- 1.Bxd4?
- Keys
- 1.Sxe4!
- threat
- 2.Sxd4#
- 1...Bxe4+
- 2.Rxe4#
- 1...Sxb5
- 2.Re5#
- 1...Sxf5
- 2.Bxf5#
- 1...d5
- 2.Sc5#
- 2.Qc8#
- 1...d6
- 2.Qc8#
- 1...f6
- 2.Bg8#
- 1...Sc2
- 2.Re5#
- 1...Se2
- 2.Re5#
- 1...Sb3
- 2.Re5#
- 1...Sf3
- 2.Sc5#
- 1...Sc6
- 2.Sg5#
- threat
- 1.Sxe4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 3
- Sets
- B(i);OGATE::P(D),XB(i)
- S(b);::R1(G)
- S(b);OGATE,XR(G)::B(I),XS(b)
- S(k);N_SPINP(d),SBLOCK::S(F),XS(b)
- P(f);OGATEB::QAB(H)
- P(f);N_SPINP(d),OGATEB::QAB(H)
- P(h);OGATEB::B(I)
- Tries
- Try
- B(A);XS(b)
- Threat
- R1(G)
- Vars
- P(f);OGATEB::QAB(H)
- P(f);N_SPINP(d),OGATEB::QAB(H)
- P(h);OGATEB::B(I)
- Refutation
- B(j);
- Try
- Actual
- S(C);P_SPINS(C),XP(c)
- Threat
- S(F),XS(b)
- Vars
- B(i);CHECK,OGATE,XS(C)::R(E),XB(i)
- S(b);XS(F)::R1(G)
- S(b);OGATE,XR(G)::B(I),XS(b)
- P(f);N_SPINP(d),OGATEB::QAB(H)
- P(h);OGATEB::B(I)
- S(b);::R1(G)
- S(b);N_PINS(C)::S(C)
- S(b);N_PINS(C),N_SPINP(d)::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).