MESON Chess Problem Database

Problem Display
PID: 24975 (8/7K/6Q1/4p3/8/3R4/1p6/kb6 w - - 0 1)

Chepizhni, Viktor Ivanovich

1st Prize, Nikolaev-200 JT, 1989

8/7K/6Q1/4p3/8/3R4/1p6/kb6

#2

3 + 4

2786 More Fun with Chess Miniatures 2000
6167 Viktor Chepizhny 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Ka2
      • 2.Qa6#
  • Tries
    • 1.Rd1?
      • threat
        • 2.Qxb1#
      • 1...e4
        • 2.Qa6#
      • 1...Ka2!
  • Keys
    • 1.Qg1!
      • 1...Ka2
        • 2.Qa7#
      • 1...e4
        • 2.Ra3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR(B)
  • Tries
    • Try
      • R(A);P_PINB(b),P_SPINQ(B)
      • Threat
        • QAR1(B),XB(b)
      • Vars
        • P(d);N_PINQ(B)::QAR(B)
      • Refutation
        • K(a);N_SPINB(b),P-FLIGHT
  • Actual
    • Q(B);P_PINB(b),P_SPINR(A)
    • Vars
      • K(a);N_SPINB(b),P-FLIGHT::QAR(B)
      • P(d);N_PINR(A)::R(A)
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