MESON Chess Problem Database

Problem Display
PID: 69030 (8/4p3/2p1B3/4k1NK/1P2N1P1/4p3/4P3/4B3 w - - 0 1)

Groeneveld, Cornelis

Het Belgisch Schaakbord (L'Echiquier Belge), 1957

8/4p3/2p1B3/4k1NK/1P2N1P1/4p3/4P3/4B3

#2

8 + 4

5454 Near Snap 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Bc3#
    • 1...Kf4
      • 2.Bg3#
  • Tries
    • 1.Kh4?
      • 1...Kd4
        • 2.Bc3#
      • 1...Kf4
        • 2.Bg3#
      • 1...c5!
    • 1.Kg6?
      • 1...Kd4
        • 2.Bc3#
      • 1...Kf4
        • 2.Bg3#
      • 1...c5!
    • 1.Kh6?
      • 1...Kd4
        • 2.Bc3#
      • 1...Kf4
        • 2.Bg3#
      • 1...c5!
  • Keys
    • 1.Sc5!
      • 1...Kd4
        • 2.Sf3#
      • 1...Kf4
        • 2.Sd3#
      • 1...Kd6
        • 2.Bg3#
      • 1...Kf6
        • 2.Bc3#

This anticipates 133540(1961)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::B(A)
  • Tries
    • Try
      • K(G);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT::B(A)
      • Refutation
        • P(c);
    • Try
      • K(G);S_FLIGHT
      • Vars
        • K(b);S_FLIGHT::B(A)
      • Refutation
        • P(c);
    • Try
      • K(G);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT::B(A)
      • Refutation
        • P(c);
  • Actual
    • S(D);
    • Vars
      • K(b);S_FLIGHT::S(F)
      • K(b);S_FLIGHT::S(D)
      • K(b);S_FLIGHT::B(A)
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