MESON Chess Problem Database

Problem Display
PID: 28908 (2bB1N2/1p2K3/3np2p/5pkp/1r6/q2n1R1Q/3P3b/3B2Nr w - - 0 1)

Stocchi, Ottavio

1st Prize, L'Italia Scacchistica, 1937

2bB1N2/1p2K3/3np2p/5pkp/1r6/q2n1R1Q/3P3b/3B2Nr

#2

8 + 13

3100 Selected Stocchi (I) 2001
14475 Mat Plus Review 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Bxg1
      • 2.Kxd6#
    • 1...Bd7
      • 2.Kxd7#
    • 1...Sf4
      • 2.Kxd6#
    • 1...Se5
      • 2.Kxd6#
    • 1...Sc4
      • 2.Kf7#
      • 2.Ke8#
    • 1...Sb5
      • 2.Kf7#
      • 2.Ke8#
    • 1...Sf7
      • 2.Kxf7#
    • 1...Se8
      • 2.Kxe8#
    • 1...f4
      • 2.Kxd6#
    • 1...e5
      • 2.Kxd6#
  • Tries
    • 1.Qg3+?
      • 1...Rg4
        • 2.Sh3#
      • 1...Bxg3!
  • Keys
    • 1.Rf4!
      • threat
        • 2.Qh4#
      • 1...Kxf4
        • 2.Qe3#
      • 1...Rxf4
        • 2.Qxh5#
      • 1...Bxg1
        • 2.Qg3#
      • 1...Bxf4
        • 2.Sf3#
      • 1...Sxf4
        • 2.Kxd6#
      • 1...Bg3
        • 2.Qxg3#
      • 1...h4
        • 2.Qxh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 6
  • Sets
    • B(b);XS(B)::B(G)+K(F),XS(i)
    • B(m);::B(G)+K(F),XB(m)
    • S(d);::B(G)+K(F),XS(i)
    • S(i);::B(G)+K(F),XS(i)
    • P(f);::B(G)+K(F),XS(i)
    • P(j);::B(G)+K(F),XS(i)
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • R(e);P_SPINR(e)::S(B)
      • Refutation
        • B(b);XQ(E)
  • Actual
    • R(D);
    • Threat
      • QAB1(E)
    • Vars
      • K(g);OGATEB,S_FLIGHT,XR(D)::QAB1(E)
      • R(e);SBLOCK,XR(D)::QAR1(E),XP(h)
      • B(b);N_GUARD,XS(B)::QAR2(E)
      • B(b);SBLOCK,XR(D)::S(B)
      • S(d);SBLOCK,XR(D)::B(G)+K(F),XS(i)
      • B(b);N_GUARD::QAR2(E),XB(b)
      • P(h);::QAB1(E),XP(h)
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