MESON Chess Problem Database

Problem Display
PID: 76321 (8/8/8/4K2b/4P1rk/6NP/8/4BQ2 w - - 0 1)

Kelly, Vincent

The Tablet, 1927

(First published on Sat Apr 9 1927)

8/8/8/4K2b/4P1rk/6NP/8/4BQ2

#2

6 + 3

15239 Valois Notebooks 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kg5
      • 2.Qf6#
    • 1...Rxe4+
      • 2.Sxe4#
    • 1...Rg5+
      • 2.Sf5#
  • Tries
    • 1.Sh1+?
      • 1...Kg5
        • 2.Qf6#
      • 1...Rg3!
    • 1.Se2+?
      • 1...Kg5
        • 2.Qf6#
      • 1...Rg3!
  • Keys
    • 1.Qf3!
      • 1...Rxe4+
        • 2.Sxe4#
      • 1...Rg5+
        • 2.Sf5#
      • 1...Kxh3
        • 2.Qh1#
      • 1...Kg5
        • 2.Qf6#
      • 1...Rxg3
        • 2.Qxg3#
      • 1...Rf4
        • 2.Qxh5#
      • 1...Rg6
        • 2.Qxh5#
      • 1...Rg7
        • 2.Qxh5#
      • 1...Rg8
        • 2.Qxh5#
      • 1...Bg6
        • 2.Qxg4#
      • 1...Bf7
        • 2.Qxg4#
      • 1...Be8
        • 2.Qxg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB1(B)
    • R(a);CHECK,XP(E)::B(A)+S(C),XR(a)
    • R(a);CHECK,SBLOCK::B(A)+S(C),DCHECK
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(B)
      • Refutation
        • R(a);P_SPINR(a)
    • Try
      • S(C);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(B)
      • Refutation
        • R(a);P_SPINR(a)
  • Actual
    • Q(B);
    • Vars
      • R(a);CHECK,XP(E)::B(A)+S(C),XR(a)
      • R(a);CHECK,SBLOCK::B(A)+S(C),DCHECK
      • K(b);OGATEB,P-FLIGHT,XP(D)::QAR2(B)
      • K(b);S_FLIGHT::QAB1(B)
      • R(a);OGATE,P_SPINR(a),XS(C)::QAB1(B),XR(a)
      • R(a);OGATE::QAR1(B),XB(c)
      • B(c);N_GUARD::QAR1(B),XR(a)
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).