MESON Chess Problem Database

Problem Display
PID: 218566 (B4K2/P2pN3/2pk4/p7/P7/5P2/3B2Q1/3R4 w - - 0 1)

Anonymous

Sp. Prize, Jamaica Family Journal TT, 1881

B4K2/P2pN3/2pk4/p7/P7/5P2/3B2Q1/3R4

#2

9 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc7
      • 2.Bxa5#
  • Tries
    • 1.Bc3+?
      • 1...Ke6
        • 2.Qh3#
        • 2.Qe2#
        • 2.Qg4#
        • 2.Qg6#
        • 2.Qg8#
      • 1...Kc7
        • 2.Bxa5#
      • 1...Kc5!
    • 1.Bf4+?
      • 1...Ke6
        • 2.Rd6#
        • 2.Qg6#
      • 1...Kc5!
    • 1.Qe2?
      • 1...Kc7
        • 2.Bxa5#
      • 1...c5
        • 2.Bf4#
        • 2.Bxa5#
      • 1...Kc5!
  • Keys
    • 1.Qg4!
      • 1...Kc5
        • 2.Be3#
      • 1...Ke5
        • 2.Bc3#
      • 1...Kc7
        • 2.Bxa5#
      • 1...c5
        • 2.Bf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::B(B),XP(a)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • K(c);S_FLIGHT::B(B),XP(a)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • B(B);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(c);S_FLIGHT::B(B),XP(a)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(c);S_FLIGHT::B(B)
      • K(c);S_FLIGHT::B(B),XP(a)
      • P(b);SBLOCK::R(A)+B(B),DCHECK
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