MESON Chess Problem Database

Problem Display
PID: 87621 (8/8/4R3/3k1B2/4N3/4K3/8/8 w - - 0 1)

Lokker, Miklosh S

Problemista, 1966

8/8/4R3/3k1B2/4N3/4K3/8/8

#2

4 + 1

5454 Near Snap 2009
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Ra6?
      • 1...Ke5
        • 2.Ra5#
      • 1...Kc4!
    • 1.Rc6?
      • threat
        • 2.Rc5#
      • 1...Ke5
        • 2.Rc5#
      • 1...Kxc6!
  • Keys
    • 1.Rb6!
      • 1...Kc4
        • 2.Be6#
      • 1...Ke5
        • 2.Rb5#

Anticipated by 77632(1957)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);
      • Vars
        • K(a);P-FLIGHT::R(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(D);
      • Threat
        • R1(D)
      • Vars
        • K(a);P-FLIGHT::R(D)
      • Refutation
        • K(a);S_FLIGHT,XR(D)
  • Actual
    • R(D);
    • Vars
      • K(a);S_FLIGHT::B(C)
      • K(a);P-FLIGHT::R(D)
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