MESON Chess Problem Database

Problem Display
PID: 245127 (8/8/8/4Q3/3Np3/3pk3/8/4B2K w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Smena (Moscow), 1995

8/8/8/4Q3/3Np3/3pk3/8/4B2K

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Bd2+?
      • 1...Kf2
        • 2.Qf4#
      • 1...Kxd2!
    • 1.Bb4?
      • 1...Kf2
        • 2.Qf4#
      • 1...d2!
    • 1.Ba5?
      • 1...Kf2
        • 2.Qf4#
      • 1...d2!
    • 1.Qh2?
      • threat
        • 2.Qf2#
      • 1...d2
        • 2.Qxd2#
      • 1...Kxd4!
    • 1.Qg7?
      • 1...Kf4
        • 2.Qg3#
      • 1...d2!
  • Keys
    • 1.Bc3!
      • threat
        • 2.Qg3#
      • 1...Kf2
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • K(b);N_SPINP(c),S_FLIGHT::QAR2(D)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT,XB(A)
    • Try
      • B(A);
      • Vars
        • K(b);N_SPINP(c),S_FLIGHT::QAR2(D)
      • Refutation
        • P(a);
    • Try
      • B(A);
      • Vars
        • K(b);N_SPINP(c),S_FLIGHT::QAR2(D)
      • Refutation
        • P(a);
    • Try
      • Q(D);N_PINP(c)
      • Threat
        • QAB1(D)
      • Vars
        • P(a);::QAB1(D),XP(a)
      • Refutation
        • K(b);S_FLIGHT,XS(C)
    • Try
      • Q(D);N_PINP(c)
      • Vars
        • K(b);S_FLIGHT::QAB1(D)
      • Refutation
        • P(a);
  • Actual
    • B(A);
    • Threat
      • QAR2(D)
    • Vars
      • K(b);N_SPINP(c),S_FLIGHT::QAR2(D)
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