MESON Chess Problem Database

Problem Display
PID: 182245 (8/8/1B6/3Q1B2/5k2/2P4K/8/8 w - - 0 1)

Fraisse, A

La Strategie, 1906

8/8/1B6/3Q1B2/5k2/2P4K/8/8

#2

5 + 1

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qe6?
      • 1...Kf3
        • 2.Qe3#
        • 2.Qe4#
      • 1...Kg5!
    • 1.Qb5?
      • 1...Kf3
        • 2.Qf1#
      • 1...Kg5!
    • 1.Qc5?
      • 1...Kf3
        • 2.Qf2#
        • 2.Qe3#
      • 1...Kg5!
  • Keys
    • 1.Qf7!
      • 1...Kf3
        • 2.Bd3#
      • 1...Ke5
        • 2.Bc7#
      • 1...Kg5
        • 2.Be3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(a);P-FLIGHT::QAR(C)+B(D)
      • K(a);S_FLIGHT::B(E)
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