MESON Chess Problem Database

Problem Display
PID: 196743 (B5Q1/BN2K3/6p1/P4p2/4k3/5N1P/2P1p3/5n2 w - - 0 1)

Sparke, Arthur M

L'Italia Scacchistica, 1919

B5Q1/BN2K3/6p1/P4p2/4k3/5N1P/2P1p3/5n2

#2

9 + 5

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...f4
      • 2.Sd6#
  • Tries
    • 1.Sc5+?
      • 1...Ke3
        • 2.Sd3#
        • 2.Se6#
      • 1...Kf4!
    • 1.Qd5+?
      • 1...Kxd5
        • 2.Sd6#
      • 1...Kf4!
  • Keys
    • 1.Qb8!
      • threat
        • 2.Sd8#
      • 1...Kxf3
        • 2.Sd8#
      • 1...Kd5
        • 2.Sd6#
      • 1...f4
        • 2.Sd6#
      • 1...Se3
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(d);SBLOCK::B(H)+S(F),DCHECK
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(I);CHECK
      • Vars
        • K(c);S_FLIGHT,XQ(I)::B(H)+S(F)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(I);
    • Threat
      • B(H)+S(F)
    • Vars
      • K(c);S_FLIGHT,XS(B)::B(H)+S(F)
      • K(c);S_FLIGHT::B(H)+S(F)
      • P(d);SBLOCK::B(H)+S(F),DCHECK
      • S(a);SBLOCK::B(H)+S(F),DCHECK
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