MESON Chess Problem Database

Problem Display
PID: 85739 (r3k3/1R5K/P6p/5R2/8/8/8/8 w q - 0 1)

Speckmann, Werner

Deutsche Schachzeitung, 1981

r3k3/1R5K/P6p/5R2/8/8/8/8

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd8
      • 2.Rf8#
    • 1...0-0-0
      • 2.Rc5#
  • Tries
    • 1.Kg8?
      • threat
        • 2.Rf8#
      • 1...Kd8
        • 2.Rf8#
      • 1...0-0-0+!
    • 1.Rg5?
      • threat
        • 2.Rg8#
      • 1...Kd8
        • 2.Rg8#
      • 1...Kf8
        • 2.Rg8#
      • 1...0-0-0
        • 2.Rc5#
      • 1...hxg5!
  • Keys
    • 1.Kg7!
      • threat
        • 2.Rf8#
      • 1...Kd8
        • 2.Rf8#
      • 1...0-0-0
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(c);P-FLIGHT::R(A)
    • K(c);0-0-0,OGATEB::R(A)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Threat
        • R1(A)
      • Vars
        • K(c);P-FLIGHT::R(A)
      • Refutation
        • K(c);0-0-0,CHECK
    • Try
      • R(A);
      • Threat
        • R(A)
      • Vars
        • K(c);P-FLIGHT::R(A)
        • K(c);P-FLIGHT::R1(A)
        • K(c);0-0-0,OGATEB::R(A)
      • Refutation
        • P(a);XR(A)
  • Actual
    • K(D);P-FLIGHT
    • Threat
      • R1(A)
    • Vars
      • K(c);P-FLIGHT::R(A)
      • K(c);0-0-0,OGATEB::R(A)
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