MESON Chess Problem Database

Problem Display
PID: 49846 (8/8/1K2BB2/4N3/3k4/3N4/3R4/8 w - - 0 1)

Keller, Kurt

Rochade Europa, 2003

8/8/1K2BB2/4N3/3k4/3N4/3R4/8

#2

6 + 1

5454 Near Snap 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3
      • 2.Sf3#
  • Tries
    • 1.Sf2+?
      • 1...Ke3
        • 2.Bg5#
      • 1...Kc3!
    • 1.Sc5+?
      • 1...Ke3
        • 2.Bg5#
      • 1...Kc3!
  • Keys
    • 1.Bd5!
      • 1...Kc3
        • 2.Sf3#
      • 1...Ke3
        • 2.Sc4#
      • 1...Kxd5
        • 2.Sc5#

Anticipated by 11267(1937)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(F)+S(C)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(a);S_FLIGHT::B(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);CHECK
      • Vars
        • K(a);S_FLIGHT::B(F)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(E);
    • Vars
      • K(a);S_FLIGHT::B(F)+S(C)
      • K(a);S_FLIGHT::S(C)
      • K(a);P-FLIGHT,XB(E)::R(A)+S(B)
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