MESON Chess Problem Database

Problem Display
PID: 244614 (4N2Q/6q1/3NpnR1/n3k2r/4PpPp/1pP5/5R2/6BK w - - 0 1)

Fasano, Alessandro

L'Italia Scacchistica, 2007

4N2Q/6q1/3NpnR1/n3k2r/4PpPp/1pP5/5R2/6BK

#2

10 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qh6
      • 2.Qxf6#
    • 1...Qa7
      • 2.Qxf6#
    • 1...Qb7
      • 2.Qxf6#
    • 1...Qc7
      • 2.Qxf6#
    • 1...Qd7
      • 2.Qxf6#
    • 1...Qh7
      • 2.Qxf6#
    • 1...Qg8
      • 2.Qxf6#
    • 1...Sxg4
      • 2.Qxh5#
    • 1...Sd5
      • 2.Qxh5#
    • 1...Sd7
      • 2.Qxh5#
    • 1...Sg8
      • 2.Qxh5#
    • 1...f3
      • 2.Bh2#
  • Tries
    • 1.Rd2?
      • threat
        • 2.Bd4#
      • 1...Sxe4
        • 2.Sf7#
      • 1...Sxe8
        • 2.Qxh5#
      • 1...f3
        • 2.Bh2#
      • 1...Qa7
        • 2.Qxf6#
      • 1...Sc6!
  • Keys
    • 1.Re2!
      • threat
        • 2.Bd4#
      • 1...Sxe4
        • 2.Qxh5#
      • 1...Sxe8
        • 2.Sf7#
      • 1...f3
        • 2.Bh2#
      • 1...Qa7
        • 2.Qxf6#
      • 1...Sc6
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 10
  • Sets
    • Q(i);OGATE,P_SPINS(h)::QAB1(J),XS(h)
    • Q(i);OGATE,P_PINP(E),P_SPINS(h)::QAB1(J),XS(h)
    • S(h);N_GUARD,P_SPINQ(i),XP(F)::QAR(J),XR(f)
    • S(h);N_GUARD,P_SPINQ(i)::QAR(J),XR(f)
    • P(b);OGATEB::B(A)
  • Tries
    • Try
      • R(C);
      • Threat
        • B(A)
      • Vars
        • S(h);P_SPINQ(i),SBLOCK,XP(E)::S(G)
        • S(h);N_GUARD,P_SPINQ(i),XS(I)::QAR(J),XR(f)
        • P(b);OGATEB::B(A)
        • Q(i);OGATE,P_SPINS(h)::QAB1(J),XS(h)
      • Refutation
        • S(d);
  • Actual
    • R(C);
    • Threat
      • B(A)
    • Vars
      • S(h);N_GUARD,P_SPINQ(i),P_SPINS(h),XP(E)::QAR(J),XR(f)
      • S(h);P_SPINQ(i),XS(I)::S(G)
      • P(b);OGATEB::B(A)
      • Q(i);OGATE,P_SPINS(h)::QAB1(J),XS(h)
      • S(d);N_GUARD::S(G)
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