MESON Chess Problem Database

Problem Display
PID: 47308 (k1K5/2R5/2r5/2r5/3B4/8/8/7Q w - - 0 1)

Vignore, Vivien

Europe Echecs, 1984

k1K5/2R5/2r5/2r5/3B4/8/8/7Q

#2

4 + 3

4883 Still More Fun with Chess Miniatures 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Ra5
      • 2.Qxc6#
    • 1...Re5
      • 2.Qxc6#
    • 1...Rf5
      • 2.Qxc6#
    • 1...Rg5
      • 2.Qxc6#
    • 1...Rh5
      • 2.Qxc6#
  • Tries
    • 1.Qa1+?
      • 1...Ra6
        • 2.Qxa6#
      • 1...Ra5!
  • Keys
    • 1.Rxc6!
      • 1...Rxc6+
        • 2.Qxc6#
      • 1...Ka7
        • 2.Qa1#
      • 1...Rc1
        • 2.Rxc1#
      • 1...Rc2
        • 2.Rxc2#
      • 1...Rc3
        • 2.Rxc3#
      • 1...Rc4
        • 2.Rxc4#
      • 1...Ra5
        • 2.Ra6#
      • 1...Rb5
        • 2.Ra6#
      • 1...Rd5
        • 2.Ra6#
      • 1...Re5
        • 2.Ra6#
      • 1...Rf5
        • 2.Ra6#
      • 1...Rg5
        • 2.Ra6#
      • 1...Rh5
        • 2.Ra6#

There are these versions: 262361

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 5
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • R(a);N_GUARD::QAB(A),XR(b)
  • Tries
    • Try
      • Q(A);CHECK,N_PINR(b)
      • Vars
        • R(b);N_GUARD,P_SPINR(b)::QAR2(A),XR(b)
      • Refutation
        • R(a);P_SPINR(a)
  • Actual
    • R(C);XR(b)
    • Vars
      • R(a);CHECK,OGATE,P_SPINR(a),XR(C)::QAB(A),XR(a)
      • K(c);P-FLIGHT,P_SPINR(a)::QAR(A)
      • R(a);::QAB(A)+R(C),XR(a)
      • R(a);N_PINR(C)::QAB(A)+R(C),DCHECK
      • R(a);N_PINR(C)::R(C)
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Developed and maintained by Brian Stephenson.
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