MESON Chess Problem Database

Problem Display
PID: 150367 (K3N2B/8/R3P1N1/5knP/3p2n1/3Pb3/8/4R2Q w - - 0 1)

Agostini, Valerio

2nd HM., L'Italia Scacchistica, 1983

K3N2B/8/R3P1N1/5knP/3p2n1/3Pb3/8/4R2Q

#2

10 + 5

5454 Near Snap 2014
15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Sd6#
    • 1...Bg1
      • 2.Sd6#
    • 1...Bd2
      • 2.Sd6#
    • 1...Bf2
      • 2.Sd6#
    • 1...Bf4
      • 2.Sh4#
      • 2.Se7#
  • Tries
    • 1.Ra5+?
      • 1...Kxe6
        • 2.Qd5#
      • 1...Se5!
    • 1.Qf3+?
      • 1...Bf4
        • 2.Sh4#
        • 2.Se7#
        • 2.Sd6#
        • 2.Qxf4#
      • 1...Sxf3!
  • Keys
    • 1.Qh4!
      • 1...Sxe6
        • 2.Sd6#
      • 1...Sf2
        • 2.Se7#
      • 1...Bc1
        • 2.Sd6#
      • 1...Bg1
        • 2.Sd6#
      • 1...Bd2
        • 2.Sd6#
      • 1...Bf2
        • 2.Sd6#
      • 1...Bf4
        • 2.Se7#
      • 1...Sh2
        • 2.Se7#
      • 1...Se5
        • 2.Se7#
      • 1...Sf6
        • 2.Sg7#
      • 1...Sh6
        • 2.Se7#
      • 1...Sf3
        • 2.Sg7#
      • 1...Sh3
        • 2.Sg7#
      • 1...Se4
        • 2.Sg7#
      • 1...Sf7
        • 2.Sg7#
      • 1...Sh7
        • 2.Sg7#

Anticipated by 107827(1948)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
    • B(a);::S(I)
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • K(d);P_SPINB(a),S_FLIGHT,XP(F)::QAB1(B)
      • Refutation
        • S(c);P_SPINS(c)
    • Try
      • Q(B);CHECK
      • Refutation
        • S(e);XQ(B)
  • Actual
    • Q(B);
    • Vars
      • S(e);SBLOCK,XP(F)::S(I)
      • S(c);::S(G)
      • B(a);::S(I)
      • B(a);SBLOCK::S(G)
      • S(c);SBLOCK::S(I)
      • S(e);::S(I)
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