MESON Chess Problem Database

Problem Display
PID: 226696 (2RnR3/2Nkp3/P1Np2K1/3p4/3P4/8/8/8 w - - 0 1)

Vaughan, Colin V

Sunday Chronicle, 1945

(First published on Sun Dec 23 1945)

2RnR3/2Nkp3/P1Np2K1/3p4/3P4/8/8/8

#2

7 + 5

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Se6
      • 2.Sb8#
    • 1...Sb7
      • 2.Sb8#
    • 1...Sf7
      • 2.Sb8#
  • Keys
    • 1.Se6!
      • 1...Kxe6
        • 2.Rxe7#
      • 1...Kxc8
        • 2.Rxd8#
      • 1...Kxe8
        • 2.Rxd8#
      • 1...Sxc6
        • 2.Sf8#
      • 1...Sxe6
        • 2.Sb8#
      • 1...Sb7
        • 2.Sf8#
      • 1...Sf7
        • 2.Sf8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(e);::S(C)
  • Actual
    • S(E);
    • Vars
      • K(c);P_SPINP(d),S_FLIGHT,XS(E)::R1(G),XP(d)
      • K(c);P_SPINS(e),S_FLIGHT,XR(F)::R1(G),XS(e)
      • K(c);P_SPINS(e),S_FLIGHT,XR(G)::R1(F),XS(e)
      • S(e);XS(C)::S(E)
      • S(e);SBLOCK,XS(E)::S(C)
      • S(e);::S(E)
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