MESON Chess Problem Database

Problem Display
PID: 12141 (8/8/8/rR1n4/1R6/kN6/8/K7 w - - 0 1)

di Vincenzi, Renato

Unpublished, 1975

8/8/8/rR1n4/1R6/kN6/8/K7

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Sd2?
      • threat
        • 2.Sb1#
        • 2.Sc4#
      • 1...Sxb4
        • 2.Rxa5#
      • 1...Sc3
        • 2.Sc4#
      • 1...Se3
        • 2.Sb1#
      • 1...Sb6
        • 2.Sb1#
      • 1...Rxb5!
    • 1.Sd4?
      • threat
        • 2.Sc2#
      • 1...Sxb4
        • 2.Rxa5#
      • 1...Se3!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Rb3#
      • 1...Rxb5
        • 2.Ra4#
      • 1...Sxb4
        • 2.Rxa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);SBLOCK,XR(C)::R(D),XR(b)
        • S(c);::S(B)
      • Refutation
        • R(b);XR(D)
    • Try
      • S(B);
      • Threat
        • S(B)
      • Vars
        • S(c);SBLOCK,XR(C)::R(D),XR(b)
      • Refutation
        • S(c);
  • Actual
    • S(B);
    • Threat
      • R1(C)
    • Vars
      • R(b);N_GUARD,XR(D)::R1(C)
      • S(c);SBLOCK,XR(C)::R(D),XR(b)
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