MESON Chess Problem Database

Problem Display
PID: 10145 (8/1KNP4/3N4/4PP2/R1bkpR2/p2p2P1/pn1p1n2/B2Bb1Q1 w - - 0 1)

Goldschmeding, Cornelis

1st HM., Israel Ring Ty., 1962

8/1KNP4/3N4/4PP2/R1bkpR2/p2p2P1/pn1p1n2/B2Bb1Q1

#2

12 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3
      • 2.Rxc4#
    • 1...Ke3
      • 2.Rxe4#
  • Tries
    • 1.Kb6?
      • 1...Kc3
        • 2.Rxc4#
      • 1...Ke3
        • 2.Rxe4#
      • 1...Kxe5!
    • 1.Kc6?
      • 1...Kc3
        • 2.Rxc4#
      • 1...Ke3
        • 2.Rxe4#
      • 1...Kxe5!
    • 1.Sxc4?
      • 1...Kc3
        • 2.Sb5#
      • 1...Kc5!
    • 1.Bxb2+?
      • 1...Ke3
        • 2.Sxc4#
        • 2.Rxe4#
      • 1...Kc5
        • 2.Sxe4#
        • 2.Rxc4#
      • 1...axb2!
    • 1.Rxc4+?
      • 1...Ke3
        • 2.Sd5#
        • 2.Rcxe4#
        • 2.Rfxe4#
      • 1...Kxe5!
    • 1.Rxe4+?
      • 1...Kc3
        • 2.Raxc4#
        • 2.Rexc4#
      • 1...Kc5!
    • 1.d8R?
      • 1...Kc3
        • 2.Rxc4#
      • 1...Ke3
        • 2.Rxe4#
      • 1...Kc5
        • 2.Sxe4#
      • 1...Kxe5!
  • Keys
    • 1.d8Q!
      • 1...Kc3
        • 2.Rxc4#
      • 1...Ke3
        • 2.Rxe4#
      • 1...Kc5
        • 2.Sxe4#
      • 1...Kxe5
        • 2.Sxc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(i);N_SPINB(h),N_SPINP(j),S_FLIGHT::R1(E),XB(h)
    • K(i);N_SPINB(h),N_SPINP(j),N_SPINS(c),P_SPINS(e),S_FLIGHT::R1(F),XP(j)
  • Tries
    • Try
      • K(J);P-FLIGHT
      • Vars
        • K(i);N_SPINB(h),N_SPINP(j),S_FLIGHT::R1(E),XB(h)
        • K(i);N_SPINB(h),N_SPINP(j),N_SPINS(c),P_SPINS(e),S_FLIGHT::R1(F),XP(j)
      • Refutation
        • K(i);N_SPINB(h),N_SPINP(j),S_FLIGHT,XP(G)
    • Try
      • K(J);S_FLIGHT
      • Vars
        • K(i);N_SPINB(h),N_SPINP(j),S_FLIGHT::R1(E),XB(h)
        • K(i);N_SPINB(h),N_SPINP(j),N_SPINS(c),P_SPINS(e),S_FLIGHT::R1(F),XP(j)
      • Refutation
        • K(i);N_SPINB(h),N_SPINP(j),S_FLIGHT,XP(G)
    • Try
      • S(I);XB(h)
      • Vars
        • K(i);N_SPINP(j),S_FLIGHT::S(K)
      • Refutation
        • K(i);N_SPINP(j),N_SPINS(c),P_SPINS(e),S_FLIGHT
    • Try
      • B(A);CHECK,P_PINS(e),XS(c)
      • Refutation
        • P(f);XB(A)
    • Try
      • R(E);CHECK,XB(h)
      • Refutation
        • K(i);N_SPINP(j),S_FLIGHT,XP(G)
    • Try
      • R(F);CHECK,XP(j)
      • Refutation
        • K(i);N_SPINB(h),N_SPINS(c),P_SPINS(e),S_FLIGHT
    • Try
      • P(L);
      • Vars
        • K(i);N_SPINB(h),N_SPINP(j),S_FLIGHT::R1(E),XB(h)
        • K(i);N_SPINB(h),N_SPINP(j),N_SPINS(c),P_SPINS(e),S_FLIGHT::R1(F),XP(j)
        • K(i);N_SPINB(h),N_SPINP(j),N_SPINS(c),P_SPINS(e),S_FLIGHT::S(I),XP(j)
      • Refutation
        • K(i);N_SPINB(h),N_SPINP(j),S_FLIGHT,XP(G)
  • Actual
    • P(L);
    • Vars
      • K(i);N_SPINB(h),N_SPINP(j),S_FLIGHT::R1(E),XB(h)
      • K(i);N_SPINB(h),N_SPINP(j),N_SPINS(c),P_SPINS(e),S_FLIGHT::R1(F),XP(j)
      • K(i);N_SPINB(h),N_SPINP(j),N_SPINS(c),P_SPINS(e),S_FLIGHT::S(I),XP(j)
      • K(i);N_SPINB(h),N_SPINP(j),S_FLIGHT,XP(G)::S(I),XB(h)
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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).