MESON Chess Problem Database

Problem Display
PID: 241698 (r3k3/pRR5/2p5/8/8/8/8/4K3 w q - 0 1)

Mlynka, Karol

4th Comm., Kudesnik, 2006

r3k3/pRR5/2p5/8/8/8/8/4K3

#2

3 + 4

5454 Near Snap 2021
15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rb8
      • 2.Rxb8#
    • 1...Rc8
      • 2.Rxc8#
  • Tries
    • 1.Rg7?
      • threat
        • 2.Rg8#
      • 1...Kd8
        • 2.Rg8#
      • 1...0-0-0
        • 2.Rgc7#
      • 1...Kf8!
  • Keys
    • 1.Rh7!
      • threat
        • 2.Rh8#
      • 1...Kd8
        • 2.Rh8#
      • 1...Kf8
        • 2.Rh8#
      • 1...0-0-0
        • 2.Rhc7#

Anticipated by 34176(1990)

This anticipates 173514(2017)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(c);N_GUARD::R(B),XR(c)
    • R(c);N_GUARD::R(C),XR(c)
  • Tries
    • Try
      • R(C);
      • Threat
        • R(C)
      • Vars
        • K(d);P-FLIGHT::R(C)
        • K(d);0-0-0,OGATEB::R1(C)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • R(C);
    • Threat
      • R(C)
    • Vars
      • K(d);P-FLIGHT::R(C)
      • K(d);0-0-0,OGATEB::R1(C)
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