MESON Chess Problem Database

Problem Display
PID: 64386 (8/2Q5/8/3k2K1/8/8/4NP2/8 w - - 0 1)

d'Orville, Peter Auguste

250 Problemes des Echecs, 1842

8/2Q5/8/3k2K1/8/8/4NP2/8

#2

4 + 1

16 Chess Amateur (The) 1910
5454 Near Snap 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Sf4#
  • Tries
    • 1.Kg6?
      • 1...Ke6
        • 2.Sf4#
      • 1...Ke4!
    • 1.Qc6+?
      • 1...Ke5
        • 2.f4#
      • 1...Kxc6!
  • Keys
    • 1.f3!
      • 1...Ke6
        • 2.Sf4#

This anticipates 136705(2001), 136707(2001)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::S(A)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::S(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);P-FLIGHT::P(B)
      • Refutation
        • K(a);S_FLIGHT,XQ(D)
  • Actual
    • P(B);
    • Vars
      • K(a);S_FLIGHT::S(A)
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