MESON Chess Problem Database

Problem Display
PID: 63712 (8/7p/4pB1N/4P1n1/5k2/1R5p/N2P3P/4R2K w - - 0 1)

Tikkanen, Tapani

1st HM., Israel Ring Ty., 1964

8/7p/4pB1N/4P1n1/5k2/1R5p/N2P3P/4R2K

#2

9 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Sc1?
      • 1...Sf3
        • 2.Sd3#
      • 1...Se4
        • 2.Se2#
      • 1...Sf7!
    • 1.Rf1+?
      • 1...Sf3
        • 2.Rb4#
      • 1...Ke4!
    • 1.Ree3?
      • 1...Se4
        • 2.Rf3#
      • 1...Sf7
        • 2.Rb4#
      • 1...Sf3!
    • 1.Rbe3?
      • 1...Sf3
        • 2.Re4#
      • 1...Sf7
        • 2.Rf1#
      • 1...Se4!
    • 1.Rb4+?
      • 1...Se4
        • 2.Rf1#
      • 1...Kf3!
  • Keys
    • 1.Sc3!
      • 1...Kf3
        • 2.Rf1#
      • 1...Sf3
        • 2.Re4#
      • 1...Se4
        • 2.Se2#
      • 1...Sf7
        • 2.Rf1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • S(c);SBLOCK::S(C)
      • Refutation
        • S(c);
    • Try
      • R(A);CHECK
      • Vars
        • S(c);P_SPINS(c)::R(F)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(A);
      • Vars
        • S(c);N_GUARD,SBLOCK::R1(A)
        • S(c);N_GUARD::R(F)
      • Refutation
        • S(c);
    • Try
      • R(F);
      • Vars
        • S(c);N_GUARD,SBLOCK::R1(F)
        • S(c);N_GUARD::R(A)
      • Refutation
        • S(c);
    • Try
      • R(F);CHECK
      • Vars
        • S(c);P_SPINS(c)::R(A)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • S(C);
    • Vars
      • K(b);P-FLIGHT::R(A)
      • S(c);N_GUARD,SBLOCK::R1(A)
      • S(c);SBLOCK::S(C)
      • S(c);N_GUARD::R(A)
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