MESON Chess Problem Database

Problem Display
PID: 56453 (8/1pp5/8/1Q2p3/2pkp3/8/1P3P2/2K1N2B w - - 0 1)

Brogi, Giuseppe

L'Italia Scacchistica, 1950

8/1pp5/8/1Q2p3/2pkp3/8/1P3P2/2K1N2B

#2

6 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...c3
      • 2.Sc2#
    • 1...e3
      • 2.Qd5#
    • 1...c5
      • 2.Qd7#
  • Tries
    • 1.b3?
      • threat
        • 2.Qxc4#
      • 1...Kc3
        • 2.Qxc4#
      • 1...c3
        • 2.Sc2#
        • 2.Qc4#
      • 1...cxb3!
  • Keys
    • 1.Kd2!
      • threat
        • 2.Sc2#
      • 1...c3+
        • 2.bxc3#
      • 1...e3+
        • 2.fxe3#
      • 1...c5
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(a);::S(B)
    • P(c);::QAR1(F)
    • P(f);SBLOCK::QAR(F)
  • Tries
    • Try
      • P(D);
      • Threat
        • QAR1(F),XP(a)
      • Vars
        • K(b);S_FLIGHT::QAR1(F),XP(a)
      • Refutation
        • P(a);XP(D)
  • Actual
    • K(A);S_FLIGHT
    • Threat
      • S(B)
    • Vars
      • P(a);CHECK,OGATE::P(D),XP(a)
      • P(c);CHECK,OGATE::P(E),XP(c)
      • P(f);SBLOCK::QAR(F)
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