MESON Chess Problem Database

Problem Display
PID: 272607 (8/3B4/N7/3k2K1/3B4/8/P7/3R4 w - - 0 1)

Kharchisin, Nikolai

Mosiashvili-75 JT (Kudesnik), 2023

8/3B4/N7/3k2K1/3B4/8/P7/3R4

#2

6 + 1

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Bc6#
    • 1...Kd6
      • 2.Bf6#
  • Tries
    • 1.Kf4?
      • 1...Kd6
        • 2.Bc5#
        • 2.Bf6#
      • 1...Kc4!
    • 1.Kg4?
      • 1...Ke4
        • 2.Bc6#
      • 1...Kd6
        • 2.Bf6#
      • 1...Kc4!
    • 1.Kf5?
      • 1...Kd6
        • 2.Bc5#
        • 2.Bf6#
      • 1...Kc4!
    • 1.Ba1+?
      • 1...Kc4
        • 2.Rd4#
      • 1...Ke4!
    • 1.Bb2+?
      • 1...Kc4
        • 2.Rd4#
      • 1...Ke4!
    • 1.Rd2?
      • 1...Ke4
        • 2.Bc6#
      • 1...Kd6
        • 2.Bf6#
      • 1...Kc4!
    • 1.a3?
      • 1...Ke4
        • 2.Bc6#
      • 1...Kd6
        • 2.Bf6#
      • 1...Kc4!
  • Keys
    • 1.a4!
      • 1...Kc4
        • 2.Be6#
      • 1...Ke4
        • 2.Bc6#
      • 1...Kd6
        • 2.Bf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);N_GUARD,S_FLIGHT::B(F)
    • K(a);N_GUARD,P-FLIGHT::R(A)+B(C)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(a);N_GUARD,S_FLIGHT::B(F)
        • K(a);N_GUARD,P-FLIGHT::R(A)+B(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(D);P-FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);CHECK
      • Vars
        • K(a);N_GUARD,S_FLIGHT::R1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);CHECK
      • Vars
        • K(a);N_GUARD,S_FLIGHT::R1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::B(F)
        • K(a);N_GUARD,P-FLIGHT::R(A)+B(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(B);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::B(F)
        • K(a);N_GUARD,P-FLIGHT::R(A)+B(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • P(B);
    • Vars
      • K(a);N_GUARD,S_FLIGHT::B(F)
      • K(a);N_GUARD,P-FLIGHT::R(A)+B(C)
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