MESON Chess Problem Database

Problem Display
PID: 153214 (8/1Q6/1B6/8/bk1p4/1P6/8/1K6 w - - 0 1)

McDowell, Michael

2nd Prize, StrateGems 02. Miniature Ty., 2011

8/1Q6/1B6/8/bk1p4/1P6/8/1K6

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Ka3
      • 2.Bc5#
  • Tries
    • 1.Bxd4+?
      • 1...Ka3
        • 2.Bb2#
        • 2.Bc5#
      • 1...Ka5
        • 2.Bc3#
        • 2.Qb6#
        • 2.b4#
      • 1...Bb5!
  • Keys
    • 1.Ba5+!
      • 1...Ka3
        • 2.Qb4#
      • 1...Kxa5
        • 2.b4#
      • 1...Kc5
        • 2.Bb4#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::B(C)
  • Tries
    • Try
      • B(C);CHECK,XP(c)
      • Refutation
        • B(a);P_SPINB(a)
  • Actual
    • B(C);CHECK
    • Vars
      • K(b);S_FLIGHT::QAB1(D)
      • K(b);OGATE,S_FLIGHT,XB(C)::P(B)
      • K(b);S_FLIGHT::B(C)
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