MESON Chess Problem Database

Problem Display
PID: 67426 (4QnKb/p1B1P3/1p6/N2p4/1P1kP3/nR6/8/7b w - - 0 1)

Stocchi, Ottavio

3rd HM., Shakhmatna misl, 1954

4QnKb/p1B1P3/1p6/N2p4/1P1kP3/nR6/8/7b

#2

8 + 8

5407 Selected Stocchi (II) 2004

SOLUTION

  • SOUND
  • Tries
    • 1.Qb5?
      • threat
        • 2.Qd3#
        • 2.Qxd5#
      • 1...Kxe4
        • 2.Qd3#
      • 1...Bxe4
        • 2.Sc6#
      • 1...dxe4
        • 2.Sc6#
      • 1...Sc4
        • 2.Qxd5#
      • 1...Sxb5!
    • 1.Qc6?
      • threat
        • 2.Qxd5#
      • 1...Bxe4
        • 2.Qc3#
      • 1...dxe4
        • 2.Qd6#
      • 1...Kxe4!
    • 1.Qf7?
      • threat
        • 2.Qxd5#
      • 1...Kxe4
        • 2.Qf4#
      • 1...Bxe4
        • 2.Qf2#
      • 1...dxe4
        • 2.Sc6#
      • 1...Se6!
  • Keys
    • 1.Qh5!
      • threat
        • 2.Qxd5#
      • 1...Kxe4
        • 2.Qg4#
      • 1...Bxe4
        • 2.Qxh8#
      • 1...dxe4
        • 2.Qd1#
      • 1...Be5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P-FLIGHT,XP(C)::QAB1(G)
        • B(a);SBLOCK,XP(C)::S(D)
        • P(d);SBLOCK,XP(C)::S(D)
        • S(b);::QAR1(G),XP(d)
      • Refutation
        • S(b);XQ(G)
    • Try
      • Q(G);
      • Threat
        • QAR1(G),XP(d)
      • Vars
        • B(a);SBLOCK,XP(C)::QAB1(G)
        • P(d);OGATEB,SBLOCK,XP(C)::QAR2(G)
      • Refutation
        • K(c);P-FLIGHT,P_SPINP(d),XP(C)
    • Try
      • Q(G);
      • Threat
        • QAR1(G),XP(d)
      • Vars
        • K(c);OGATEB,P-FLIGHT,XP(C)::QAR1(G)
        • B(a);SBLOCK,XP(C)::QAB(G)
        • P(d);SBLOCK,XP(C)::S(D)
      • Refutation
        • S(g);
  • Actual
    • Q(G);
    • Threat
      • QAR1(G),XP(d)
    • Vars
      • K(c);OGATEB,P-FLIGHT,XP(C)::QAR2(G)
      • B(a);SBLOCK,XP(C)::QAB(G),XB(h)
      • P(d);SBLOCK,XP(C)::QAR(G)
      • B(h);N_GUARD::QAB1(G),XB(h)
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