MESON Chess Problem Database

Problem Display
PID: 15651 (7N/8/4k3/1NR1p3/7Q/1K6/8/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

3rd HM., Shakhmaty, 1986

7N/8/4k3/1NR1p3/7Q/1K6/8/8

#2

5 + 2

3296 Shakhmatny zadachi miniaturi 1987

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Sd4#
  • Tries
    • 1.Rc6+?
      • 1...Kd5
        • 2.Qc4#
      • 1...Kf5
        • 2.Rf6#
      • 1...Kd7!
    • 1.Qd8?
      • 1...e4
        • 2.Sd4#
        • 2.Sc7#
        • 2.Qd6#
      • 1...Kf5!
  • Keys
    • 1.Rd5!
      • 1...Kxd5
        • 2.Qc4#
      • 1...Kf5
        • 2.Sd4#
      • 1...e4
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);P_SPINP(a),S_FLIGHT::S(C)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(B)
        • K(b);OGATE,S_FLIGHT::R1(D)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
  • Actual
    • R(D);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XR(D)::QAB1(B)
      • K(b);P_SPINP(a),S_FLIGHT::S(C)
      • P(a);::S(C)
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