MESON Chess Problem Database

Problem Display
PID: 29259 (3RQ1Kb/8/4P2N/3PkNBR/6pP/2n1PbP1/2rPp1pn/q4r2 w - - 0 1)

Stocchi, Ottavio

3rd Prize, Magyar Sakkvilag, 1939

3RQ1Kb/8/4P2N/3PkNBR/6pP/2n1PbP1/2rPp1pn/q4r2

#2

13 + 11

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

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.d4#
  • Tries
    • 1.Bf4+?
      • 1...Kf6
        • 2.Qf7#
      • 1...Ke4!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Be7#
      • 1...Kxd5
        • 2.Bf6#
      • 1...Bxd5
        • 2.d4#
      • 1...Sxd5
        • 2.Shf7#
      • 1...Be4
        • 2.Sc4#
      • 1...Bf6
        • 2.Bf4#
      • 1...Se4
        • 2.Sdf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(h);SBLOCK::P(A)
  • Tries
    • Try
      • B(G);CHECK
      • Vars
        • K(j);S_FLIGHT::QAR1(L)
      • Refutation
        • K(j);P-FLIGHT
  • Actual
    • S(F);
    • Threat
      • R(H)+B(G)
    • Vars
      • K(j);P-FLIGHT,XP(E)::R(H)+B(G)
      • B(h);P_PINP(I),SBLOCK,XP(E)::P(A)
      • S(g);SBLOCK,XP(E)::S(J)
      • B(h);SBLOCK::S(F)
      • B(k);SBLOCK::R(H)+B(G),DCHECK
      • S(g);SBLOCK::S(F)
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