MESON Chess Problem Database

Problem Display
PID: 15923 (6B1/4p3/4b3/5Rp1/1KN1k1p1/3pP1n1/8/4Q3 w - - 0 1)

di Vincenzi, Renato

Unpublished, 1989

6B1/4p3/4b3/5Rp1/1KN1k1p1/3pP1n1/8/4Q3

#2

6 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sxf5
      • 2.Qh1#
    • 1...d2
      • 2.Qb1#
  • Tries
    • 1.Bxe6?
      • threat
        • 2.Sd2#
      • 1...Sxf5
        • 2.Qh1#
      • 1...d2
        • 2.Qb1#
      • 1...Se2
        • 2.Qh1#
      • 1...Sf1!
  • Keys
    • 1.Qa1!
      • threat
        • 2.Qe5#
      • 1...Kxf5
        • 2.Bh7#
      • 1...Bxf5
        • 2.Qa8#
      • 1...Sxf5
        • 2.Qh1#
      • 1...d2
        • 2.Qb1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD,SBLOCK,XR(E)::QAB(A)
    • P(a);OGATEB::QAB(A)
  • Tries
    • Try
      • B(F);XB(f)
      • Threat
        • S(D)
      • Vars
        • S(b);N_GUARD,XR(E)::QAB(A)
        • P(a);OGATEB::QAB(A)
        • S(b);N_GUARD::QAB(A)
      • Refutation
        • S(b);
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XR(E)::B(F)
      • B(f);N_GUARD,SBLOCK,XR(E)::QAB(A)
      • S(b);N_GUARD,SBLOCK,XR(E)::QAB(A)
      • P(a);OGATEB::QAB(A)
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