MESON Chess Problem Database

Problem Display
PID: 30028 (B1b5/KnNp1N2/4n2r/2kPR1b1/6R1/P1P5/5P2/6B1 w - - 0 1)

Stocchi, Ottavio

1st Prize, Bulletin Ouvrier des Echecs, 1948

B1b5/KnNp1N2/4n2r/2kPR1b1/6R1/P1P5/5P2/6B1

#2

11 + 7

3100 Selected Stocchi (I) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Sa5
      • 2.d6#
    • 1...Sd6
      • 2.dxe6#
    • 1...Sd8
      • 2.d6#
  • Tries
    • 1.dxe6+?
      • 1...Kc6
        • 2.Rc4#
      • 1...d5!
  • Keys
    • 1.Rb4!
      • threat
        • 2.Sa6#
      • 1...Sxc7
        • 2.f4#
      • 1...Sd4
        • 2.cxd4#
      • 1...Sf4
        • 2.f3#
      • 1...Sg7
        • 2.f4#
      • 1...Sed8
        • 2.f4#
      • 1...Sf8
        • 2.f4#
      • 1...Sa5
        • 2.d6#
      • 1...Sd6
        • 2.dxe6#
      • 1...Sbd8
        • 2.d6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(e);::R(G)+P(F)
    • S(e);S_CUTP(f)::R(G)+P(F),XS(c)
  • Tries
    • Try
      • P(F);CHECK,XS(c)
      • Vars
        • K(a);P-FLIGHT,P_SPINS(e)::R(E)
      • Refutation
        • P(f);P_SPINP(f)
  • Actual
    • R(E);
    • Threat
      • S(I)
    • Vars
      • S(c);N_GUARD,XS(I)::B(A)+P(B)
      • S(c);OGATE::P(D),XS(c)
      • S(c);N_GUARD,S_CUTB(b)::B(A)+P(B)
      • S(c);N_GUARD::B(A)+P(B)
      • S(e);::R(G)+P(F)
      • S(e);S_CUTP(f)::R(G)+P(F),XS(c)
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