MESON Chess Problem Database

Problem Display
PID: 79727 (4K3/R7/RN2N3/3Pk2P/6BP/4P3/8/8 w - - 0 1)

Einat, Paz

Al Hamishmar, 1975

4K3/R7/RN2N3/3Pk2P/6BP/4P3/8/8

#2

10 + 1

133 The Problemist Supplement 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Sd7#
  • Tries
    • 1.Sc5?
      • 1...Kf6
        • 2.Sc4#
      • 1...Kd6!
    • 1.Sg5?
      • 1...Kf6
        • 2.Sc4#
      • 1...Kd6!
    • 1.Ra4?
      • 1...Kf6
        • 2.Sd7#
      • 1...Kd6!
    • 1.Ra5?
      • 1...Kd6
        • 2.Sc4#
      • 1...Kf6
        • 2.Sd7#
      • 1...Ke4!
    • 1.Re7?
      • 1...Ke4
        • 2.Sf4#
        • 2.Sc5#
      • 1...Kf6
        • 2.Sd7#
      • 1...Kd6!
    • 1.e4?
      • 1...Kd6
        • 2.Sc4#
        • 2.Sd7#
      • 1...Kf6
        • 2.Sd7#
      • 1...Kxe4!
  • Keys
    • 1.Sf4!
      • 1...Ke4
        • 2.Re7#
      • 1...Kd6
        • 2.Sd7#
      • 1...Kf6
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::S(G)
  • Tries
    • Try
      • S(H);
      • Vars
        • K(a);S_FLIGHT::R(F)+S(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(H);
      • Vars
        • K(a);S_FLIGHT::R(F)+S(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(F);
      • Vars
        • K(a);S_FLIGHT::S(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(F);
      • Vars
        • K(a);S_FLIGHT::S(G)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(I);
      • Vars
        • K(a);S_FLIGHT::S(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(A);
      • Vars
        • K(a);S_FLIGHT::S(G)
      • Refutation
        • K(a);P-FLIGHT,XP(A)
  • Actual
    • S(H);
    • Vars
      • K(a);P-FLIGHT::R(I)
      • K(a);S_FLIGHT::R(F)+S(G)
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