MESON Chess Problem Database

Problem Display
PID: 64042 (1q6/2r2Qb1/4B3/1n1N2N1/R2pp1pR/3kP3/2p3b1/2B1Kn2 w - - 0 1)

Stocchi, Ottavio

1st Prize, Springaren, 1951

1q6/2r2Qb1/4B3/1n1N2N1/R2pp1pR/3kP3/2p3b1/2B1Kn2

#2

9 + 11

5407 Selected Stocchi (II) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.Sb4#
    • 1...Bh1
      • 2.Qxf1#
    • 1...Sc3
      • 2.Sf4#
  • Tries
    • 1.Qf2?
      • threat
        • 2.Qe2#
      • 1...Sg3
        • 2.Qd2#
      • 1...Sc3
        • 2.Sf4#
      • 1...Bf3!
  • Keys
    • 1.Sxe4!
      • threat
        • 2.Sf2#
      • 1...Kxe4
        • 2.Qf5#
      • 1...Rxf7
        • 2.Sc5#
      • 1...Bxe4
        • 2.Qxf1#
      • 1...dxe3
        • 2.Sf4#
      • 1...g3
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • R(i);SBLOCK::S(F)
    • B(c);N_GUARD::QAB(I),XS(a)
    • S(h);SBLOCK::S(F)
  • Tries
    • Try
      • Q(I);
      • Threat
        • QAB1(I)
      • Vars
        • S(a);N_GUARD::QAR1(I)
        • S(h);SBLOCK::S(F)
      • Refutation
        • B(c);
  • Actual
    • S(G);XP(f)
    • Threat
      • S(G)
    • Vars
      • K(d);OGATEB,P_SPINP(e),S_FLIGHT,XS(G)::QAB1(I)
      • R(i);N_GUARD,XQ(I)::S(G)
      • B(c);N_GUARD,SBLOCK,XS(G)::QAB(I),XS(a)
      • P(e);XP(C)::S(F)
      • P(g);::S(F)
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