MESON Chess Problem Database

Problem Display
PID: 268174 (4K3/8/8/2pPkPp1/2P3P1/8/1P2N2P/1Q6 w - - 0 1)

Ceriani, Luigi

L'Italia Scacchistica, 1929

4K3/8/8/2pPkPp1/2P3P1/8/1P2N2P/1Q6

#2

9 + 3

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Tries
    • 1.Qc2?
      • 1...Kf6
        • 2.Qc3#
      • 1...Kd6!
    • 1.Qe4+?
      • 1...Kd6
        • 2.Qe7#
      • 1...Kf6
        • 2.Qe7#
      • 1...Kxe4!
    • 1.Qe1?
      • 1...Kd6
        • 2.Qg3#
      • 1...Kf6
        • 2.Qc3#
      • 1...Ke4!
    • 1.b3?
      • 1...Kf6
        • 2.Qa1#
        • 2.Qb2#
      • 1...Kd6!
  • Keys
    • 1.Qd3!
      • 1...Kd6
        • 2.Qg3#
      • 1...Kf6
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT,XQ(A)
    • Try
      • Q(A);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • P(B);
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(b);N_GUARD,S_FLIGHT::QAB(A)
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