MESON Chess Problem Database

Problem Display
PID: 79148 (B6B/8/2p5/N7/1K2k3/8/5Q2/8 w - - 0 1)

Akimov, Nikolai Nikolaevich

Smena, 1998

B6B/8/2p5/N7/1K2k3/8/5Q2/8

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Sb3?
      • 1...Kd3
        • 2.Sc5#
      • 1...Kd5!
    • 1.Sc4?
      • 1...Kd5
        • 2.Qf5#
      • 1...Kd3!
    • 1.Sxc6?
      • threat
        • 2.Se5#
      • 1...Kd3
        • 2.Se5#
      • 1...Kd5!
    • 1.Qg3?
      • 1...Kd5
        • 2.Qe5#
      • 1...Kf5!
  • Keys
    • 1.Sb7!
      • 1...c5+
        • 2.Sxc5#
      • 1...Kd3
        • 2.Sc5#
      • 1...Kd5
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::S(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • S(C);XP(b)
      • Threat
        • B(D)+S(C)
      • Vars
        • K(a);S_FLIGHT::S(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
  • Actual
    • S(C);N_PINP(b)
    • Vars
      • P(b);CHECK::B(D)+S(C),DCHECK,XP(b)
      • K(a);S_FLIGHT::S(C)
      • K(a);S_FLIGHT::QAR2(A)
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