MESON Chess Problem Database

Problem Display
PID: 182345 (8/4p3/4Q3/7b/3B1k2/5P2/7K/8 w - - 0 1)

Fraisse, A

La Strategie, 1906

8/4p3/4Q3/7b/3B1k2/5P2/7K/8

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf3
      • 2.Be3#
    • 1...Bg4
      • 2.Qxg4#
    • 1...Bg6
      • 2.Qg4#
    • 1...Bf7
      • 2.Qg4#
    • 1...Be8
      • 2.Qg4#
  • Keys
    • 1.Kh3!
      • 1...Bg4+
        • 2.Qxg4#
      • 1...Kxf3
        • 2.Qe3#
      • 1...Kg5
        • 2.Be3#
      • 1...Bxf3
        • 2.Be3#
        • 2.Qe5#
      • 1...Bg6
        • 2.Qg4#
      • 1...Bf7
        • 2.Qg4#
      • 1...Be8
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(b);SBLOCK,XP(B)::B(C)
    • B(b);N_GUARD::QAR1(D),XB(b)
    • B(b);N_GUARD::QAR1(D)
  • Actual
    • K(A);P-FLIGHT
    • Vars
      • B(b);CHECK,N_GUARD::QAR1(D),XB(b)
      • K(a);P-FLIGHT,XP(B)::QAR1(D)
      • K(a);S_FLIGHT::B(C)
      • B(b);N_GUARD::QAR1(D)
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