MESON Chess Problem Database

Problem Display
PID: 244615 (2N1R2b/2p2p2/Q6q/1Ppknn1p/2p1pP2/2P4K/3N2R1/7B w - - 0 1)

Fasano, Alessandro

L'Italia Scacchistica, 2007

2N1R2b/2p2p2/Q6q/1Ppknn1p/2p1pP2/2P4K/3N2R1/7B

#2

10 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sg6
      • 2.Qc6#
    • 1...Se3
      • 2.Se7#
    • 1...Sg3
      • 2.Se7#
    • 1...Sd4
      • 2.Se7#
    • 1...Sh4
      • 2.Se7#
    • 1...Se7
      • 2.Sxe7#
    • 1...Sg7
      • 2.Se7#
      • 2.Rxe5#
    • 1...f6
      • 2.Qe6#
  • Tries
    • 1.Rg6?
      • threat
        • 2.Bxe4#
      • 1...Sf3
        • 2.Qc6#
      • 1...Sg3
        • 2.Se7#
      • 1...Sd6
        • 2.Se7#
      • 1...Qxf4!
  • Keys
    • 1.Rg5!
      • threat
        • 2.Bxe4#
      • 1...Sf3
        • 2.Se7#
      • 1...Sg3
        • 2.Se7#
      • 1...Sd6
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • S(e);N_GUARD,S_CUTQ(h)::QAB1(H)
    • S(f);N_GUARD::S(I)
    • S(f);N_GUARD::S(I),XS(f)
    • P(j);N_GUARD,S_CUTQ(h)::QAB1(H)
  • Tries
    • Try
      • R(C);P_PINP(b)
      • Threat
        • B(A),XP(b)
      • Vars
        • S(e);N_GUARD,N_SPINP(b)::QAB1(H)
        • S(f);N_GUARD::S(I)
      • Refutation
        • Q(h);XP(F)
  • Actual
    • R(C);P_PINP(b)
    • Threat
      • B(A),XP(b)
    • Vars
      • S(e);N_SPINP(b),P_SPINS(f)::S(I)
      • S(f);N_GUARD,P_SPINS(e)::S(I)
      • S(f);P_SPINS(e),S_CUTQ(h)::QAB1(H)
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