MESON Chess Problem Database

Problem Display
PID: 267281 (b2QR2B/4n1rB/4q1N1/2P1N2p/2P1k3/2b1PR2/2K3P1/2n5 w - - 0 1)

Ceriani, Luigi

L'Italia Scacchistica, 1928

b2QR2B/4n1rB/4q1N1/2P1N2p/2P1k3/2b1PR2/2K3P1/2n5

#2

12 + 8

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Be1
      • 2.Qd4#
    • 1...Bd2
      • 2.Qd4#
    • 1...Bb4
      • 2.Qd4#
    • 1...Bd4
      • 2.Qxd4#
    • 1...Ba5
      • 2.Qd4#
    • 1...Sa2
      • 2.Qd3#
    • 1...Se2
      • 2.Qd3#
    • 1...Sb3
      • 2.Qd3#
    • 1...Sd3
      • 2.Qxd3#
  • Tries
    • 1.Sg4?
      • threat
        • 2.Sf2#
        • 2.Rf4#
      • 1...Qxg4
        • 2.Qxa8#
      • 1...Qxg6
        • 2.Rf4#
        • 2.Qxa8#
      • 1...Sxg6
        • 2.Rf4#
      • 1...Qf5
        • 2.Sf2#
      • 1...Qf7
        • 2.Sf2#
      • 1...Qe5
        • 2.Sf2#
      • 1...Qd6
        • 2.Sf2#
      • 1...Qf6
        • 2.Sf2#
      • 1...Rf7
        • 2.Sf2#
      • 1...Be1
        • 2.Rf4#
        • 2.Qd4#
      • 1...Be5
        • 2.Sf2#
      • 1...Se2
        • 2.Sf2#
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sd5
        • 2.Sf2#
      • 1...hxg4!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Sf2#
      • 1...Qxg6
        • 2.Qxa8#
      • 1...Sxd3
        • 2.Qxd3#
      • 1...Sxg6
        • 2.Qh4#
      • 1...Be1
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • B(b);N_GUARD::QAR1(J)
    • B(b);N_GUARD::QAR1(J),XB(b)
    • S(a);N_GUARD::QAB1(J)
    • S(a);N_GUARD::QAB1(J),XS(a)
  • Tries
    • Try
      • S(G);
      • Threat
        • DUALS(2)
      • Vars
        • Q(e);N_GUARD,P_SPINS(f),XS(G)::QAB(J),XB(h)
        • S(f);P_SPINQ(e),P_SPINS(f),XS(H)::R1(D)
        • Q(e);P_SPINS(f)::S(G)
        • Q(e);::S(G)
        • R(g);::S(G)
        • B(b);::S(G)
        • S(a);N_GUARD::QAB1(J),XS(a)
        • S(f);P_SPINQ(e)::S(G)
      • Refutation
        • P(d);XS(G)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • Q(e);N_GUARD,P_SPINQ(e),P_SPINS(f),XS(H)::QAB(J),XB(h)
      • S(a);OGATE,XS(G)::QAB1(J),XS(a)
      • S(f);OGATE,P_SPINQ(e),P_SPINS(f),XS(H)::QAR(J)
      • B(b);N_GUARD::QAR1(J)
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Developed and maintained by Brian Stephenson.
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