MESON Chess Problem Database

Problem Display
PID: 85735 (r3k3/1R6/8/8/p6K/7R/8/7B w q - 0 1)

Speckmann, Werner

The Problemist, 1962

r3k3/1R6/8/8/p6K/7R/8/7B

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...0-0-0
      • 2.Rc3#
  • Tries
    • 1.Kg3?
      • threat
        • 2.Rh8#
      • 1...Kd8
        • 2.Rh8#
      • 1...Kf8
        • 2.Rh8#
      • 1...0-0-0!
    • 1.Kg5?
      • threat
        • 2.Rh8#
      • 1...Kd8
        • 2.Rh8#
      • 1...Kf8
        • 2.Rh8#
      • 1...0-0-0
        • 2.Rc3#
      • 1...Ra5+!
    • 1.Rg3?
      • threat
        • 2.Rg8#
      • 1...Kd8
        • 2.Rg8#
      • 1...0-0-0
        • 2.Rc3#
      • 1...Kf8!
  • Keys
    • 1.Kg4!
      • threat
        • 2.Rh8#
      • 1...Kd8
        • 2.Rh8#
      • 1...Kf8
        • 2.Rh8#
      • 1...0-0-0
        • 2.Rc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);0-0-0,OGATEB::R(B)
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Threat
        • R(B)
      • Vars
        • K(c);P-FLIGHT::R(B)
      • Refutation
        • K(c);0-0-0
    • Try
      • K(C);S_FLIGHT
      • Threat
        • R(B)
      • Vars
        • K(c);P-FLIGHT::R(B)
        • K(c);0-0-0,OGATEB::R(B)
      • Refutation
        • R(b);CHECK
    • Try
      • R(B);
      • Threat
        • R(B)
      • Vars
        • K(c);P-FLIGHT::R(B)
        • K(c);0-0-0,OGATEB::R(B)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • K(C);P-FLIGHT
    • Threat
      • R(B)
    • Vars
      • K(c);P-FLIGHT::R(B)
      • K(c);0-0-0,OGATEB::R(B)
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