MESON Chess Problem Database

Problem Display
PID: 23139 (8/8/8/5B2/3B4/8/1Q1pk1K1/4b3 w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

8/8/8/5B2/3B4/8/1Q1pk1K1/4b3

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kd1
      • 2.Bg4#
  • Tries
    • 1.Bf2?
      • 1...Kd1
        • 2.Bg4#
      • 1...Bxf2!
    • 1.Bc3?
      • 1...Kd1
        • 2.Bg4#
      • 1...Bf2
        • 2.Qxd2#
      • 1...Bg3
        • 2.Qxd2#
      • 1...Bh4
        • 2.Qxd2#
      • 1...Ke3!
    • 1.Bd3+?
      • 1...Kd1
        • 2.Qa1#
        • 2.Qb1#
        • 2.Qc2#
      • 1...Kxd3!
  • Keys
    • 1.Be3!
      • 1...Kd1
        • 2.Bg4#
      • 1...Kxe3
        • 2.Qe5#
      • 1...Bf2
        • 2.Qxd2#
      • 1...Bg3
        • 2.Qxd2#
      • 1...Bh4
        • 2.Qxd2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINP(b),S_FLIGHT::B(D)
  • Tries
    • Try
      • B(C);
      • Vars
        • K(c);N_SPINP(b),S_FLIGHT::B(D)
      • Refutation
        • B(a);XB(C)
    • Try
      • B(C);
      • Vars
        • K(c);N_SPINP(b),S_FLIGHT::B(D)
        • B(a);N_GUARD::QAR1(A),XP(b)
      • Refutation
        • K(c);N_SPINP(b),P-FLIGHT
    • Try
      • B(D);CHECK
      • Refutation
        • K(c);N_SPINP(b),S_FLIGHT,XB(D)
  • Actual
    • B(C);
    • Vars
      • K(c);N_SPINP(b),S_FLIGHT::B(D)
      • K(c);N_SPINP(b),OGATEB,P-FLIGHT,XB(C)::QAR2(A)
      • B(a);N_GUARD::QAR1(A),XP(b)
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