MESON Chess Problem Database

Problem Display
PID: 24919 (1n2B3/r2p2PK/2P1P3/1RNkB2R/P2p3p/3P4/8/8 w - - 0 1)

Whalley, JR

Prize, BCCA, 1935

1n2B3/r2p2PK/2P1P3/1RNkB2R/P2p3p/3P4/8/8

#2

11 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...dxc6
      • 2.Bh2#
      • 2.Bg3#
      • 2.Bf4#
      • 2.Bc7#
      • 2.Bxb8#
    • 1...dxe6
      • 2.Sb3#
      • 2.Se4#
      • 2.Sa6#
      • 2.Sb7#
    • 1...d6
      • 2.Bh2#
      • 2.Bg3#
      • 2.Bf4#
      • 2.Bf6#
  • Tries
    • 1.Sb3+?
      • 1...Kxc6
        • 2.Sxd4#
      • 1...Kxe6!
    • 1.Sa6+?
      • 1...Kxc6
        • 2.Sb4#
        • 2.Sxb8#
      • 1...Kxe6!
    • 1.Sb7+?
      • 1...Kxc6
        • 2.Sd8#
      • 1...Kxe6!
    • 1.Sxd7+?
      • 1...Kxc6
        • 2.Sxb8#
      • 1...Kxe6!
    • 1.g8Q?
      • threat
        • 2.Qg2#
      • 1...dxc6+
        • 2.Bc7#
        • 2.e7#
      • 1...dxe6+
        • 2.Sb7#
        • 2.Bc7#
      • 1...d6+
        • 2.Sb7#
        • 2.Bg7#
        • 2.e7#
      • 1...Kxc6
        • 2.Qg2#
      • 1...h3!
  • Keys
    • 1.g8S!
      • threat
        • 2.Se7#
      • 1...dxc6+
        • 2.Bc7#
      • 1...dxe6+
        • 2.Sb7#
      • 1...d6+
        • 2.Bg7#
      • 1...Kxc6
        • 2.Se7#
      • 1...Sxc6
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(c);P_SPINP(e),S_FLIGHT,XP(G)::S(D),XP(a)
      • Refutation
        • K(c);S_FLIGHT,XP(H)
    • Try
      • S(D);CHECK
      • Refutation
        • K(c);S_FLIGHT,XP(H)
    • Try
      • S(D);CHECK
      • Vars
        • K(c);P_SPINP(e),S_FLIGHT,XP(G)::S(D)
      • Refutation
        • K(c);S_FLIGHT,XP(H)
    • Try
      • S(D);CHECK,XP(e)
      • Vars
        • K(c);S_FLIGHT,XP(G)::B(K)+S(D),DCHECK,XS(f)
      • Refutation
        • K(c);S_FLIGHT,XP(H)
    • Try
      • P(I);
      • Threat
        • QAB(I)
      • Vars
        • K(c);P_SPINP(e),S_FLIGHT,XP(G)::QAB(I)
      • Refutation
        • P(b);
  • Actual
    • P(I);
    • Threat
      • S(I)
    • Vars
      • P(e);CHECK,XP(G)::R(F)+B(E)
      • P(e);CHECK,SBLOCK,XP(H)::R(C)+S(D)
      • P(e);CHECK,SBLOCK::R(F)+B(E)
      • K(c);P_SPINP(e),S_FLIGHT,XP(G)::S(I)
      • S(f);SBLOCK,XP(G)::S(I)
HTML5 logo

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).