MESON Chess Problem Database

Problem Display
PID: 268173 (8/4K3/8/8/2pPkPp1/1pP3Pp/1P2P2P/6Q1 w - - 0 1)

Ceriani, Luigi

L'Italia Scacchistica, 1929

8/4K3/8/8/2pPkPp1/1pP3Pp/1P2P2P/6Q1

#2

9 + 5

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qh1#
    • 1...Kf5
      • 2.Qb1#
  • Tries
    • 1.Kd7?
      • 1...Kd5
        • 2.Qh1#
      • 1...Kf5!
    • 1.Kf7?
      • 1...Kf5
        • 2.Qb1#
      • 1...Kd5!
    • 1.Qe3+?
      • 1...Kd5
        • 2.Qe6#
      • 1...Kf5
        • 2.Qe6#
      • 1...Kxe3!
    • 1.Qa1?
      • 1...Kd5
        • 2.Qh1#
        • 2.Qa8#
      • 1...Kf5
        • 2.Qb1#
      • 1...Ke3!
    • 1.Qb1+?
      • 1...Kd5
        • 2.Qh1#
      • 1...Ke3!
    • 1.Qd1?
      • 1...Kd5
        • 2.Qh1#
      • 1...Kf5
        • 2.Qb1#
      • 1...Ke3!
    • 1.Qe1?
      • 1...Kd5
        • 2.Qh1#
      • 1...Kf5
        • 2.Qb1#
      • 1...Ke3!
    • 1.Qf1?
      • 1...Kd5
        • 2.Qh1#
      • 1...Kf5
        • 2.Qb1#
      • 1...Ke3!
    • 1.Qh1+?
      • 1...Kf5
        • 2.Qb1#
      • 1...Ke3!
    • 1.d5?
      • 1...Kf5
        • 2.Qb1#
      • 1...Kxd5!
    • 1.f5?
      • 1...Kd5
        • 2.Qh1#
      • 1...Kxf5!
  • Keys
    • 1.Qc1!
      • 1...Kd5
        • 2.Qh1#
      • 1...Kf5
        • 2.Qb1#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(d);N_GUARD,S_FLIGHT::QAB(A)
  • Tries
    • Try
      • K(I);P-FLIGHT
      • Vars
        • K(d);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • K(I);P-FLIGHT
      • Vars
        • K(d);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);OGATE,S_FLIGHT::QAB1(A)
      • Refutation
        • K(d);P-FLIGHT,XQ(A)
    • Try
      • Q(A);
      • Vars
        • K(d);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(d);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(d);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(d);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • P(G);
      • Vars
        • K(d);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • K(d);S_FLIGHT,XP(G)
    • Try
      • P(H);
      • Vars
        • K(d);N_GUARD,S_FLIGHT::QAB(A)
      • Refutation
        • K(d);S_FLIGHT,XP(H)
  • Actual
    • Q(A);
    • Vars
      • K(d);N_GUARD,S_FLIGHT::QAB(A)
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