MESON Chess Problem Database

Problem Display
PID: 275988 (r3k3/3R4/PpP3K1/1B2BN2/8/8/8/4b3 w q - 0 1)

Eriksson, Einar

Widlert, Kjell Einar

Springaren, 1993

r3k3/3R4/PpP3K1/1B2BN2/8/8/8/4b3

#2

7 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Rh7?
      • threat
        • 2.Rh8#
      • 1...Kd8
        • 2.Rh8#
      • 1...Kf8
        • 2.Rh8#
      • 1...0-0-0
        • 2.Se7#
      • 1...Bb4!
    • 1.c7?
      • threat
        • 2.Rf7#
        • 2.Rd8#
      • 1...Rd8
        • 2.Rxd8#
        • 2.cxd8Q#
        • 2.cxd8R#
      • 1...Kf8!
  • Keys
    • 1.Rf7!
      • threat
        • 2.c7#
      • 1...Kd8
        • 2.Rf8#
      • 1...0-0-0
        • 2.Se7#
      • 1...Rd8
        • 2.Sg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(G);
      • Threat
        • R(G)
      • Vars
        • K(d);P-FLIGHT::R(G)
        • K(d);0-0-0::S(C)
      • Refutation
        • B(a);
    • Try
      • P(E);
      • Threat
        • DUALS(2)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • R(G);
    • Threat
      • B(A)+P(E)
    • Vars
      • K(d);N_GUARD,P-FLIGHT::R(G)
      • K(d);0-0-0::S(C)
      • R(c);SBLOCK::S(C)
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