MESON Chess Problem Database

Problem Display
PID: 67057 (8/1p1p3Q/1KNkp1n1/R7/1NB5/B3r3/q3p2p/8 w - - 0 1)

Stocchi, Ottavio

2nd Prize, Springaren, 1953

8/1p1p3Q/1KNkp1n1/R7/1NB5/B3r3/q3p2p/8

#2

7 + 9

5407 Selected Stocchi (II) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Qc2
      • 2.Sd3#
    • 1...Re4
      • 2.Sxa2#
    • 1...Sf4
      • 2.Qe7#
    • 1...Sh4
      • 2.Qe7#
    • 1...Se5
      • 2.Qe7#
    • 1...Se7
      • 2.Qxe7#
    • 1...Sf8
      • 2.Qe7#
    • 1...Sh8
      • 2.Qe7#
    • 1...e5
      • 2.Qxg6#
    • 1...dxc6
      • 2.Qc7#
  • Tries
    • 1.Qg8?
      • threat
        • 2.Qb8#
      • 1...dxc6
        • 2.Qd8#
      • 1...Sf8
        • 2.Qxf8#
      • 1...bxc6!
  • Keys
    • 1.Bxe6!
      • threat
        • 2.Qxd7#
      • 1...Kxe6
        • 2.Qxg6#
      • 1...Qxe6
        • 2.Sd3#
      • 1...Rxe6
        • 2.Sxa2#
      • 1...dxc6
        • 2.Qd7#
      • 1...dxe6
        • 2.Qc7#
      • 1...Se7
        • 2.Qxe7#
      • 1...Se5
        • 2.Qe7#
      • 1...Sf8
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 6
  • Sets
    • Q(a);N_GUARD::B(A)+S(B)
    • R(d);N_GUARD::B(A)+S(B),XQ(a)
    • S(g);N_GUARD::QAB1(G)
    • S(g);N_GUARD::QAB1(G),XS(g)
    • P(f);OGATEB::QAR(G),XS(g)
    • P(i);OGATE,XS(F)::QAB1(G)
  • Tries
    • Try
      • Q(G);
      • Threat
        • QAB(G)
      • Vars
        • P(i);OGATEB,XS(F)::QAR2(G)
        • S(g);N_GUARD::QAB(G),XS(g)
      • Refutation
        • P(h);XS(F)
  • Actual
    • B(C);XP(f)
    • Threat
      • QAR1(G),XP(i)
    • Vars
      • K(e);OGATEB,P-FLIGHT,XB(C)::QAR2(G),XS(g)
      • Q(a);N_GUARD,SBLOCK,XB(C)::B(A)+S(B)
      • R(d);N_GUARD,SBLOCK,XB(C)::B(A)+S(B),XQ(a)
      • P(i);XS(F)::QAR1(G)
      • P(i);OGATE,SBLOCK,XB(C)::QAB1(G)
      • S(g);N_GUARD::QAB1(G),XS(g)
      • S(g);N_GUARD::QAB1(G)
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