MESON Chess Problem Database

Problem Display
PID: 267282 (7b/B7/8/pP1R4/KNk1qn1R/3pp1Q1/1P1PB3/2n2r2 w - - 0 1)

Ceriani, Luigi

L'Italia Scacchistica, 1928

7b/B7/8/pP1R4/KNk1qn1R/3pp1Q1/1P1PB3/2n2r2

#2

10 + 9

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sa2
      • 2.b3#
    • 1...Scxe2
      • 2.b3#
    • 1...Sfxe2
      • 2.Qc7#
    • 1...Sg2
      • 2.Qc7#
    • 1...Sh3
      • 2.Qc7#
    • 1...Sh5
      • 2.Qc7#
    • 1...Sg6
      • 2.Qc7#
  • Keys
    • 1.Rxd3!
      • threat
        • 2.Rc3#
        • 2.Rd4#
      • 1...Qxd3
        • 2.Qg8#
      • 1...Scxe2
        • 2.b3#
      • 1...Scxd3
        • 2.b3#
      • 1...Sfxe2
        • 2.Qc7#
      • 1...Sfxd3
        • 2.Qc7#
      • 1...axb4
        • 2.Rd4#
      • 1...Qd4
        • 2.Rc3#
        • 2.Rxd4#
      • 1...Bc3
        • 2.Rxc3#
        • 2.Rd4#
      • 1...Bd4
        • 2.Rc3#
        • 2.Rxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • S(a);N_GUARD::P(A)
    • S(a);N_GUARD,N_SPINP(c),XB(C)::P(A)
    • S(g);N_SPINP(c),OGATE,P_SPINQ(f),XB(C)::QAR(D)
    • S(g);OGATE,P_SPINQ(f)::QAR(D)
  • Actual
    • R(I);XP(c)
    • Threat
      • DUALS(2)
    • Vars
      • Q(f);N_GUARD,P_SPINQ(f),P_SPINS(g),XR(I)::QAB(D)
      • S(a);N_GUARD,XB(C)::P(A)
      • S(a);N_GUARD,P_SPINS(a),XR(I)::P(A)
      • S(g);OGATE,P_SPINQ(f),XB(C)::QAR(D)
      • S(g);OGATE,P_SPINQ(f),P_SPINS(g),XR(I)::QAR(D)
      • P(h);XS(F)::B(C)+R(I),DCHECK
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