MESON Chess Problem Database

Problem Display
PID: 164174 (1Q6/8/8/B7/2k1K3/bp6/8/8 w - - 0 1)

Zujevas, Nikolajus

Sachmatija, 2006

1Q6/8/8/B7/2k1K3/bp6/8/8

#2

3 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Qb4#
    • 1...Bb2
      • 2.Qb4#
    • 1...Bb4
      • 2.Qxb4#
  • Tries
    • 1.Qxb3+?
      • 1...Kc5
        • 2.Qd5#
      • 1...Kxb3!
    • 1.Qc8+?
      • 1...Bc5
        • 2.Qa6#
      • 1...Kb5!
    • 1.Qg8+?
      • 1...Kc5
        • 2.Qd5#
      • 1...Kb5!
  • Keys
    • 1.Qb7!
      • threat
        • 2.Qd5#
      • 1...Kc5
        • 2.Qd5#
      • 1...Bb4
        • 2.Qxb4#
      • 1...Bc5
        • 2.Qa6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::QAR1(C)
    • B(a);N_GUARD::QAR1(C),XB(a)
  • Tries
    • Try
      • Q(C);CHECK,XP(b)
      • Vars
        • K(c);OGATE,P-FLIGHT::QAR1(C)
      • Refutation
        • K(c);S_FLIGHT,XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • B(a);P_SPINB(a),SBLOCK::QAB(C)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(C)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • K(c);P-FLIGHT::QAR1(C)
      • B(a);N_GUARD::QAR1(C),XB(a)
      • B(a);SBLOCK::QAB(C)
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