MESON Chess Problem Database

Problem Display
PID: 12069 (1b6/1P6/PkPp1B2/1P1P4/1K6/8/8/8 w - - 0 1)

di Vincenzi, Renato

Unpublished, 1974

1b6/1P6/PkPp1B2/1P1P4/1K6/8/8/8

#2

7 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Ka7
      • 2.Bd4#
    • 1...Ba7
      • 2.Bd8#
    • 1...Bc7
      • 2.Bd4#
  • Tries
    • 1.Bh4?
      • 1...Ka7
        • 2.Bf2#
      • 1...Ba7
        • 2.Bd8#
      • 1...Bc7
        • 2.Bf2#
      • 1...Kc7!
    • 1.Bg5?
      • 1...Ka7
        • 2.Be3#
      • 1...Ba7
        • 2.Bd8#
      • 1...Bc7
        • 2.Be3#
      • 1...Kc7!
    • 1.Bd8+?
      • 1...Bc7
        • 2.b8Q#
      • 1...Ka7!
  • Keys
    • 1.a7!
      • 1...Kxa7
        • 2.Bd4#
      • 1...Kc7
        • 2.a8S#
      • 1...Bxa7
        • 2.Bd8#
      • 1...Bc7
        • 2.Bd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(F)
    • B(c);N_GUARD,SBLOCK::B(F)
    • B(c);SBLOCK::B(F)
  • Tries
    • Try
      • B(F);
      • Vars
        • K(a);S_FLIGHT::B(F)
        • B(c);N_GUARD,SBLOCK::B(F)
        • B(c);SBLOCK::B(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(F);
      • Vars
        • K(a);S_FLIGHT::B(F)
        • B(c);N_GUARD,SBLOCK::B(F)
        • B(c);SBLOCK::B(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(F);CHECK
      • Vars
        • B(c);OGATE,P_SPINB(c)::P=Q
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • P(D);
    • Vars
      • K(a);S_FLIGHT,XP(D)::B(F)
      • K(a);S_FLIGHT::P=S
      • B(c);N_GUARD,SBLOCK,XP(D)::B(F)
      • B(c);SBLOCK::B(F)
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