MESON Chess Problem Database

Problem Display
PID: 269021 (8/1Q6/2K5/6B1/4k2N/8/8/8 w - - 0 1)

Kolpakov, Viktor Sergeevich

Shakhmatnaya kompozitsiya, 1997

8/1Q6/2K5/6B1/4k2N/8/8/8

#2

4 + 1

SOLUTION

  • SOUND
  • Tries
    • 1.Kc5+?
      • 1...Ke5
        • 2.Qd5#
        • 2.Qe7#
      • 1...Kd3!
    • 1.Qb3?
      • threat
        • 2.Qd5#
        • 2.Qe3#
      • 1...Ke5
        • 2.Qd5#
        • 2.Qe3#
      • 1...Kd4!
    • 1.Qb6?
      • threat
        • 2.Qe3#
      • 1...Ke5
        • 2.Qe3#
      • 1...Kd3!
    • 1.Qa7?
      • threat
        • 2.Qe3#
      • 1...Ke5
        • 2.Qe3#
      • 1...Kd3!
  • Keys
    • 1.Qd7!
      • 1...Ke5
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);CHECK,P-FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(D);
      • Threat
        • QAR1(D)
      • Vars
        • K(a);P-FLIGHT::QAR2(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Threat
        • QAR1(D)
      • Vars
        • K(a);P-FLIGHT::QAR2(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(D);
    • Vars
      • K(a);P-FLIGHT::QAR1(D)
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