MESON Chess Problem Database

Problem Display
PID: 214981 (7K/4B3/6pk/7P/8/8/2B1R3/8 w - - 0 1)

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Land og Folk, 1978

7K/4B3/6pk/7P/8/8/2B1R3/8

#2

5 + 2

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...gxh5
      • 2.Re6#
  • Tries
    • 1.Rh2?
      • threat
        • 2.hxg6#
      • 1...g5
        • 2.Bf8#
      • 1...gxh5!
    • 1.Re4?
      • 1...Kxh5
        • 2.Rh4#
      • 1...gxh5
        • 2.Re6#
      • 1...g5!
  • Keys
    • 1.Bd1!
      • 1...Kxh5
        • 2.Rh2#
      • 1...gxh5
        • 2.Re6#
      • 1...g5
        • 2.Re6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(a);OGATEB,SBLOCK,XP(C)::R(B)
  • Tries
    • Try
      • R(B);
      • Threat
        • R(B)+P(C),XP(a)
      • Vars
        • P(a);SBLOCK::B(D)
      • Refutation
        • P(a);P_SPINP(a),XP(C)
    • Try
      • R(B);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XP(C)::R1(B)
        • P(a);OGATEB,SBLOCK,XP(C)::R(B)
      • Refutation
        • P(a);
  • Actual
    • B(A);
    • Vars
      • K(b);OGATEB,P-FLIGHT,XP(C)::B(A)+R(B),DCHECK
      • P(a);OGATEB,XP(C)::R(B)
      • P(a);OGATEB::R(B)
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