MESON Chess Problem Database

Problem Display
PID: 12278 (8/8/8/8/3B4/1p3K2/pNpk4/R1n3N1 w - - 0 1)

di Vincenzi, Renato

Unpublished, 1977

8/8/8/8/3B4/1p3K2/pNpk4/R1n3N1

#2

5 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Sd3
      • 2.Sc4#
  • Tries
    • 1.Ke4?
      • 1...Se2
        • 2.Sf3#
        • 2.Sc4#
      • 1...Sd3
        • 2.Sc4#
      • 1...Ke1!
    • 1.Kg4?
      • 1...Se2
        • 2.Sf3#
      • 1...Sd3
        • 2.Sc4#
      • 1...Ke1!
    • 1.Be3+?
      • 1...Ke1
        • 2.Rxc1#
      • 1...Kc3!
  • Keys
    • 1.Kg2!
      • 1...Ke1
        • 2.Bc3#
      • 1...Se2
        • 2.Sf3#
      • 1...Sd3
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(a);SBLOCK::S(C)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • S(a);::S(C)
      • Refutation
        • K(d);P_SPINS(a),S_FLIGHT
    • Try
      • K(D);S_FLIGHT
      • Vars
        • S(a);SBLOCK::S(B)
        • S(a);SBLOCK::S(C)
      • Refutation
        • K(d);P_SPINS(a),S_FLIGHT
    • Try
      • B(E);CHECK
      • Vars
        • K(d);P_SPINS(a),S_FLIGHT::R(A),XS(a)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • K(D);S_FLIGHT
    • Vars
      • K(d);P_SPINS(a),S_FLIGHT::B(E)
      • S(a);SBLOCK::S(B)
      • S(a);SBLOCK::S(C)
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