MESON Chess Problem Database

Problem Display
PID: 206807 (4bK2/2p5/4p3/2N1k3/2Q5/8/8/2B2B2 w - - 0 1)

Belik, Nikolai Ivanovich

Sachova skladba, 1991

4bK2/2p5/4p3/2N1k3/2Q5/8/8/2B2B2

#2

5 + 4

5454 Near Snap 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Qxe6#
    • 1...Kf6
      • 2.Qxe6#
  • Tries
    • 1.Bf4+?
      • 1...Kf6
        • 2.Qxe6#
      • 1...Kf5!
    • 1.Qd4+?
      • 1...Kf5
        • 2.Bd3#
      • 1...Kxd4!
    • 1.Qe4+?
      • 1...Kf6
        • 2.Qxe6#
      • 1...Kd6!
  • Keys
    • 1.Bg2!
      • threat
        • 2.Qf4#
      • 1...Kf5
        • 2.Qxe6#
      • 1...Kd6
        • 2.Qd4#
      • 1...Kf6
        • 2.Qxe6#

Anticipated by 11946(1973)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAB1(C),XP(b)
    • K(a);S_FLIGHT::QAR1(C),XP(b)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(C),XP(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT::B(B)
      • Refutation
        • K(a);S_FLIGHT,XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(C),XP(b)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(B);
    • Threat
      • QAB1(C)
    • Vars
      • K(a);P-FLIGHT::QAB1(C),XP(b)
      • K(a);S_FLIGHT::QAR2(C)
      • K(a);S_FLIGHT::QAR1(C),XP(b)
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