MESON Chess Problem Database

Problem Display
PID: 71643 (5B2/8/B2N4/7R/3kpb2/4p2Q/bK6/n7 w - - 0 1)

Chicco, Adriano

Comm., White MT (B), 1952-1953

5B2/8/B2N4/7R/3kpb2/4p2Q/bK6/n7

#2

6 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...e2
      • 2.Qc3#
  • Tries
    • 1.Qxe3+?
      • 1...Bxe3
        • 2.Bg7#
      • 1...Kxe3!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Qa7#
      • 1...Bxd6
        • 2.Bg7#
      • 1...Bc4
        • 2.Sb5#
      • 1...Be5
        • 2.Sf5#
      • 1...Bg5
        • 2.Sc4#
      • 1...Sb3
        • 2.Qa4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • P(c);OGATE::QAB1(B)
  • Tries
    • Try
      • Q(B);CHECK,XP(c)
      • Vars
        • B(f);SBLOCK,XQ(B)::B(F)
      • Refutation
        • K(d);S_FLIGHT,XQ(B)
  • Actual
    • Q(B);
    • Threat
      • QAB(B)
    • Vars
      • B(f);N_GUARD,P_SPINB(f),XS(E)::B(F)
      • B(b);SBLOCK::QAR(B)+S(E),DCHECK
      • B(f);SBLOCK::QAR(B)+S(E),DCHECK
      • B(f);N_GUARD::QAR(B)+S(E)
      • S(a);S_CUTB(b)::QAR(B)
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