MESON Chess Problem Database

Problem Display
PID: 147323 (3K4/8/7B/4pN2/2p1P2p/Q2b1k1B/2pr1p1P/4br2 w - - 0 1)

Tolstoy, Stanislav Maksimovic

Canadian Chess Chat, 1984

3K4/8/7B/4pN2/2p1P2p/Q2b1k1B/2pr1p1P/4br2

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Ke2
      • 2.Bg4#
    • 1...Kxe4
      • 2.Qa8#
  • Tries
    • 1.Sxh4+?
      • 1...Ke2
        • 2.Bg4#
      • 1...Kxe4!
  • Keys
    • 1.Qf8!
      • threat
        • 2.Sg3#
      • 1...Be2+
        • 2.Sd6#
      • 1...Bxe4+
        • 2.Sd4#
      • 1...Ke2
        • 2.Bg4#
      • 1...Kxe4
        • 2.Bg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(g);N_SPINB(f),S_FLIGHT::B(C)
    • K(g);N_SPINB(f),OGATEB,S_FLIGHT,XP(D)::QAB(B)
  • Tries
    • Try
      • S(E);CHECK,XP(i)
      • Vars
        • K(g);N_SPINB(f),S_FLIGHT::B(C)
      • Refutation
        • K(g);N_SPINB(f),S_FLIGHT,XP(D)
  • Actual
    • Q(B);N_PINB(f)
    • Threat
      • QAR(B)+S(E)
    • Vars
      • B(f);CHECK,SBLOCK::QAR(B)+S(E)
      • B(f);CHECK,SBLOCK,XP(D)::QAR(B)+S(E),DCHECK
      • K(g);S_FLIGHT::B(C)
      • K(g);S_FLIGHT,XP(D)::B(C)
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