MESON Chess Problem Database

Problem Display
PID: 198392 (6kr/3K1RPN/8/p7/P7/8/8/5R2 w - - 0 1)

Madsen, Arthur Valdemar

Hvar a Dag, 1920

6kr/3K1RPN/8/p7/P7/8/8/5R2

#2

6 + 3

6490 yacpdb 2019
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Re7?
      • threat
        • 2.Sf6#
      • 1...Rxh7
        • 2.Rf8#
      • 1...Kxh7!
  • Keys
    • 1.Rg1!
      • 1...Kxf7
        • 2.gxh8S#
      • 1...Kxh7
        • 2.g8S#
      • 1...Rxh7
        • 2.Rf8#

Anticipated by 139065(0000)

This anticipates 80742(1962), 197289(1996)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);
      • Threat
        • S(F)
      • Vars
        • R(c);SBLOCK,XS(F)::R1(A)
      • Refutation
        • K(b);S_FLIGHT,XS(F)
  • Actual
    • R(A);
    • Vars
      • K(b);S_FLIGHT,XR(D)::PXR(c)=S
      • K(b);OGATE,S_FLIGHT,XS(F)::P=S
      • R(c);SBLOCK,XS(F)::R1(D)
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