MESON Chess Problem Database

Problem Display
PID: 23556 (8/1p6/k7/8/1Q6/pKR5/2R5/8 w - - 0 1)

Shalimov, Petr

Leninskaya Smena, 1983

8/1p6/k7/8/1Q6/pKR5/2R5/8

#2

4 + 3

2786 More Fun with Chess Miniatures 2000

SOLUTION

  • SOUND
  • Sets
    • 1...a2
      • 2.Rxa2#
  • Tries
    • 1.Qxb7+?
      • 1...Ka5
        • 2.Rc5#
      • 1...Kxb7!
  • Keys
    • 1.Rc7!
      • 1...Ka7
        • 2.Qxb7#
      • 1...a2
        • 2.Rxa2#
      • 1...b5
        • 2.R2c6#
      • 1...b6
        • 2.Qa4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(a);OGATEB::R(A),XP(a)
  • Tries
    • Try
      • Q(D);CHECK,XP(c)
      • Vars
        • K(b);P-FLIGHT::R(C)
      • Refutation
        • K(b);S_FLIGHT,XQ(D)
  • Actual
    • R(C);
    • Vars
      • K(b);P-FLIGHT,P_SPINP(c)::QAR1(D),XP(c)
      • P(a);OGATEB::R(A),XP(a)
      • P(c);N_GUARD::R(A)
      • P(c);SBLOCK::QAR2(D)
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