MESON Chess Problem Database

Problem Display
PID: 53229 (b3Q2K/p3R1N1/3P1p2/1pPk1N1R/rb3pn1/1PqB1P2/8/8 w - - 0 1)

Stocchi, Ottavio

3rd Prize, White MT (A), 1952-1953

b3Q2K/p3R1N1/3P1p2/1pPk1N1R/rb3pn1/1PqB1P2/8/8

#2

11 + 10

268 Chess Life 1955
5407 Selected Stocchi (II) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc5
      • 2.Qxb5#
    • 1...Qd4
      • 2.Se3#
    • 1...Qxc5
      • 2.Be4#
    • 1...Bxc5
      • 2.Qxa8#
  • Tries
    • 1.Qf7+?
      • 1...Kc6
        • 2.Rc7#
      • 1...Kxc5!
    • 1.Qg8+?
      • 1...Kc6
        • 2.Rc7#
      • 1...Kxc5!
  • Keys
    • 1.Se6!
      • threat
        • 2.Se3#
      • 1...Ke5
        • 2.Sc7#
      • 1...Qxc5
        • 2.Sxf4#
      • 1...Bxc5
        • 2.Sc7#
      • 1...Qe5
        • 2.Qxa8#
      • 1...Se3
        • 2.Sxe3#
      • 1...Se5
        • 2.Be4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • K(g);OGATEB,P-FLIGHT,XP(D)::QAR1(J),XP(f)
    • Q(a);SBLOCK::R(F)+S(E),DCHECK
    • Q(a);SBLOCK,XP(D)::B(B)
    • B(c);SBLOCK,XP(D)::QAB(J),XB(j)
  • Tries
    • Try
      • Q(J);CHECK
      • Vars
        • K(g);S_FLIGHT::R1(H)
      • Refutation
        • K(g);P-FLIGHT,XP(D)
    • Try
      • Q(J);CHECK
      • Vars
        • K(g);S_FLIGHT::R1(H)
      • Refutation
        • K(g);P-FLIGHT,XP(D)
  • Actual
    • S(I);
    • Threat
      • R(F)+S(E),DCHECK
    • Vars
      • K(g);P-FLIGHT::R(H)+S(I)
      • Q(a);SBLOCK,XP(D)::S(I),XP(d)
      • B(c);SBLOCK,XP(D)::S(I)
      • Q(a);SBLOCK::QAB(J),XB(j)
      • S(e);::R(F)+S(E),DCHECK,XS(e)
      • S(e);SBLOCK::B(B)
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