MESON Chess Problem Database

Problem Display
PID: 271959 (8/5p2/5k2/3P1p1P/4RBR1/3p4/1K6/1Q6 w - - 0 1)

Surkov, Ruslan Albertovich

Shakhmatnaya kompozitsiya, 1998

8/5p2/5k2/3P1p1P/4RBR1/3p4/1K6/1Q6

#2

7 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Bd6?
      • threat
        • 2.Be7#
      • 1...fxe4
        • 2.Qf1#
      • 1...f4
        • 2.Rexf4#
      • 1...fxg4!
    • 1.Bh6?
      • threat
        • 2.Bg7#
      • 1...fxg4
        • 2.Qf1#
      • 1...f4
        • 2.Rgxf4#
      • 1...fxe4!
    • 1.Re5?
      • 1...d2
        • 2.Qxf5#
      • 1...fxg4!
  • Keys
    • 1.Qf1!
      • 1...fxe4
        • 2.Bd6#
      • 1...fxg4
        • 2.Bh6#
      • 1...d2
        • 2.Qa6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(D);
      • Threat
        • B(D)
      • Vars
        • P(b);OGATEB,XR(C)::QAR(A)
        • P(b);OGATEB::R(C),XP(b)
      • Refutation
        • P(b);XR(E)
    • Try
      • B(D);
      • Threat
        • B(D)
      • Vars
        • P(b);OGATEB,XR(E)::QAR(A)
        • P(b);OGATEB::R(E),XP(b)
      • Refutation
        • P(b);XR(C)
    • Try
      • R(C);
      • Vars
        • P(a);OGATE::QAR1(A),XP(b)
      • Refutation
        • P(b);XR(E)
  • Actual
    • Q(A);
    • Vars
      • P(b);OGATEB,XR(C)::QAR(A)+B(D)
      • P(b);OGATEB,XR(E)::QAR(A)+B(D)
      • P(a);OGATE::QAR(A)
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