MESON Chess Problem Database

Problem Display
PID: 7475 (8/8/Rn1P2R1/1N1kbK2/8/3P4/1n6/B1Q5 w - - 0 1)

di Vincenzi, Renato

Unpublished, 1990

8/8/Rn1P2R1/1N1kbK2/8/3P4/1n6/B1Q5

#2

8 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Sc7#
    • 1...Bxd6
      • 2.Rxd6#
    • 1...Sd1
      • 2.Sc7#
    • 1...Sxd3
      • 2.Sc7#
    • 1...S2a4
      • 2.Sc7#
    • 1...S6a4
      • 2.Qc6#
    • 1...Sd7
      • 2.Qc6#
    • 1...Sa8
      • 2.Qc6#
    • 1...Sc8
      • 2.Qc6#
  • Tries
    • 1.Rxb6?
      • threat
        • 2.Qc6#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Bc3!
  • Keys
    • 1.d4!
      • threat
        • 2.Qc5#
      • 1...Bxd4
        • 2.Sc7#
      • 1...Bxd6
        • 2.Rxd6#
      • 1...S2c4
        • 2.Qh1#
      • 1...Sd3
        • 2.Sc7#
      • 1...S2a4
        • 2.Sc7#
      • 1...S6a4
        • 2.Qc6#
      • 1...S6c4
        • 2.Qh1#
      • 1...Sd7
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(c);SBLOCK::S(D)
    • B(c);OGATE,XP(G)::R1(H),XB(c)
    • S(a);::S(D)
    • S(a);XP(C)::S(D)
    • S(d);::QAB1(B)
  • Tries
    • Try
      • R(F);XS(d)
      • Threat
        • QAB1(B)
      • Vars
        • S(a);N_GUARD::QAB1(B),XS(a)
      • Refutation
        • B(c);
  • Actual
    • P(C);
    • Threat
      • QAR1(B)
    • Vars
      • B(c);SBLOCK,XP(C)::S(D)
      • B(c);OGATE,XP(G)::R1(H),XB(c)
      • S(a);SBLOCK::QAB(B)
      • S(a);::S(D)
      • S(d);::QAB1(B)
      • S(d);SBLOCK::QAB(B)
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