MESON Chess Problem Database

Problem Display
PID: 73504 (8/7K/8/k1pN4/NR6/2P4R/8/5B2 w - - 0 1)

Kisis, Imants J

1st Comm., Freie Presse, 1993

8/7K/8/k1pN4/NR6/2P4R/8/5B2

#2

7 + 2

6113 Problemschach-Jahrbuch (1993) 1994
6114 Problemschach-Jahrbuch (1994) 1995

SOLUTION

  • SOUND
  • Tries
    • 1.Sb2?
      • threat
        • 2.Ra4#
      • 1...cxb4
        • 2.cxb4#
      • 1...c4!
    • 1.Sab6?
      • threat
        • 2.Ra4#
      • 1...cxb4
        • 2.cxb4#
      • 1...c4!
    • 1.Sdb6?
      • 1...cxb4
        • 2.Rh5#
      • 1...c4!
    • 1.Sc7?
      • 1...c4
        • 2.Rh5#
      • 1...cxb4!
  • Keys
    • 1.Rh5!
      • 1...cxb4
        • 2.Sdb6#
      • 1...c4
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • R1(E)
      • Vars
        • P(b);OGATE,XR(E)::P(B),XP(b)
      • Refutation
        • P(b);
    • Try
      • S(D);
      • Threat
        • R1(E)
      • Vars
        • P(b);OGATE,XR(E)::P(B),XP(b)
      • Refutation
        • P(b);
    • Try
      • S(F);
      • Vars
        • P(b);OGATEB,XR(E)::R(C)
      • Refutation
        • P(b);
    • Try
      • S(F);
      • Vars
        • P(b);OGATEB::R(C)
      • Refutation
        • P(b);XR(E)
  • Actual
    • R(C);
    • Vars
      • P(b);XR(E)::R(C)+S(F)
      • P(b);::R(C)+S(F)
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