MESON Chess Problem Database

Problem Display
PID: 110011 (4N2n/4P2P/6k1/2Q5/4N3/3B4/5K2/8 w - - 0 1)

Palkoska, Emil

Bollettino Ufficiale FSI, 1923-1926

4N2n/4P2P/6k1/2Q5/4N3/3B4/5K2/8

#2

7 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sg3+?
      • 1...Kh6
        • 2.Qe3#
        • 2.Qc1#
        • 2.Qh5#
      • 1...Kf7!
    • 1.S4f6+?
      • 1...Kh6
        • 2.Sg4#
        • 2.Sg8#
        • 2.Qe3#
        • 2.Qc1#
        • 2.Qh5#
      • 1...Kf7!
    • 1.Qg5+?
      • 1...Kxh7
        • 2.S4f6#
        • 2.S8f6#
        • 2.Qg7#
      • 1...Kf7!
  • Keys
    • 1.Qe3!
      • 1...Kf5
        • 2.S4f6#
      • 1...Kh5
        • 2.Qg5#
      • 1...Kf7
        • 2.S4d6#
      • 1...Kxh7
        • 2.S4f6#
      • 1...Sf7
        • 2.Sg3#
        • 2.S4f6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(D);
    • Vars
      • K(a);S_FLIGHT::B(B)+S(C)
      • K(a);S_FLIGHT::QAR1(D)
      • K(a);S_FLIGHT::S(C)
      • K(a);S_FLIGHT,XP(F)::B(B)+S(C),DCHECK
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