MESON Chess Problem Database

Problem Display
PID: 244625 (7K/7Q/2P1P3/3B1pPn/nP1k1p2/1P2N1B1/q1pP2P1/b1N1R3 w - - 0 1)

Fasano, Alessandro

L'Italia Scacchistica, 2011

7K/7Q/2P1P3/3B1pPn/nP1k1p2/1P2N1B1/q1pP2P1/b1N1R3

#2

14 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sxg3
      • 2.Qg7#
    • 1...Sg7
      • 2.Qxg7#
  • Tries
    • 1.Se2+?
      • 1...Ke5
        • 2.Qc7#
      • 1...Kd3+!
    • 1.Bf3?
      • threat
        • 2.Sxf5#
      • 1...Ke5
        • 2.Sxf5#
      • 1...Sxg3
        • 2.Qg7#
      • 1...fxe3
        • 2.Qd7#
      • 1...Sg7
        • 2.Qxg7#
      • 1...Qxb3!
    • 1.Qxf5?
      • threat
        • 2.Se2#
        • 2.Qe4#
      • 1...Sxg3
        • 2.Qf6#
      • 1...Sc5
        • 2.Se2#
      • 1...Sf6
        • 2.Se2#
        • 2.Qxf6#
      • 1...f3
        • 2.Be5#
        • 2.Qd3#
        • 2.Qe4#
        • 2.Qe5#
      • 1...Sc3!
    • 1.Qg7+?
      • 1...Sf6
        • 2.Qxf6#
      • 1...Sxg7!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Sxf5#
      • 1...Ke5
        • 2.Sxc2#
      • 1...Sxg3
        • 2.Qg7#
      • 1...fxe3
        • 2.Bf3#
      • 1...Sg7
        • 2.Qxg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(h);N_GUARD,XB(G)::QAB(M)
    • S(h);N_GUARD::QAB(M),XS(h)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(e);P_SPINP(f),S_FLIGHT::QAB(M)
      • Refutation
        • K(e);CHECK,P-FLIGHT,P_SPINP(g)
    • Try
      • B(I);
      • Threat
        • S(F),XP(g)
      • Vars
        • K(e);P_SPINP(f),S_FLIGHT::R(B)+S(F),XP(g)
        • S(h);N_GUARD,XB(G)::QAB(M)
        • P(f);XS(F)::QAR(M)
        • S(h);N_GUARD::QAB(M),XS(h)
      • Refutation
        • Q(b);XP(E)
    • Try
      • Q(M);XP(g)
      • Threat
        • DUALS(2)
      • Vars
        • S(h);N_GUARD,XB(G)::QAB(M)
        • S(d);::S(A)
      • Refutation
        • S(d);
    • Try
      • Q(M);CHECK
      • Vars
        • S(h);N_GUARD,P_SPINS(h)::QAB(M),XS(h)
      • Refutation
        • S(h);XQ(M)
  • Actual
    • Q(M);
    • Threat
      • S(F),XP(g)
    • Vars
      • K(e);P_SPINP(f),S_FLIGHT::R(B)+S(F),XP(c)
      • S(h);N_GUARD,XB(G)::QAB(M)
      • P(f);XS(F)::QAR(M)+B(I)
      • S(h);N_GUARD::QAB(M),XS(h)
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