MESON Chess Problem Database

Problem Display
PID: 120959 (3N4/b5Q1/3P3q/3RBknp/K6p/3Pp1nr/2N1P3/1B4Rb w - - 0 1)

Stocchi, Ottavio

3rd HM., Caissa TT, 1948

3N4/b5Q1/3P3q/3RBknp/K6p/3Pp1nr/2N1P3/1B4Rb

#2

11 + 10

14475 Mat Plus Review 2007
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bb8
      • 2.Sxe3#
    • 1...S3e4
      • 2.Bh2#
    • 1...S5e4
      • 2.Bxg3#
  • Tries
    • 1.Qf6+?
      • 1...Kg4
        • 2.Qf4#
      • 1...Qxf6!
  • Keys
    • 1.d4!
      • threat
        • 2.Sxe3#
      • 1...Ke4
        • 2.Sb4#
      • 1...Kg4
        • 2.Sxe3#
      • 1...S3e4
        • 2.Bh2#
      • 1...S5e4
        • 2.Bxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(j);N_GUARD::S(C),XP(b)
    • S(c);OGATE::R(G)+B(H)
    • S(g);S_CUTB(a)::R(G)+B(H),XS(c)
  • Tries
    • Try
      • Q(J);CHECK
      • Vars
        • K(f);OGATE,P_SPINS(c),S_FLIGHT::QAR1(J)
      • Refutation
        • Q(i);XQ(J)
  • Actual
    • P(E);
    • Threat
      • B(A)+S(C),DCHECK,XP(b)
    • Vars
      • K(f);S_FLIGHT::B(A)+S(C)
      • K(f);P_SPINS(c),S_FLIGHT::S(C),XP(b)
      • S(c);OGATE,SBLOCK::R(G)+B(H)
      • S(g);SBLOCK,S_CUTB(a)::R(G)+B(H),XS(c)
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