MESON Chess Problem Database

Problem Display
PID: 28592 (1KQ3bq/6p1/p7/B7/B2N1p2/1NPk4/1n1pR1R1/nr1r4 w - - 0 1)

Stocchi, Ottavio

1st HM., Magasinet, 1934

1KQ3bq/6p1/p7/B7/B2N1p2/1NPk4/1n1pR1R1/nr1r4

#2

9 + 11

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

SOLUTION

  • SOUND
  • Sets
    • 1...Bc4
      • 2.Sc5#
    • 1...Sc4
      • 2.Qf5#
  • Tries
    • 1.Bb5+?
      • 1...Bc4
        • 2.Sc5#
      • 1...Sc4
        • 2.Sc5#
        • 2.Qf5#
      • 1...axb5!
    • 1.Rg3+?
      • 1...f3
        • 2.Rxf3#
      • 1...fxg3!
    • 1.Qxa6+?
      • 1...Sc4
        • 2.Qg6#
      • 1...Bc4+!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Sb4#
      • 1...Kc2
        • 2.Sb4#
      • 1...Kc4
        • 2.Sb4#
      • 1...Bc4
        • 2.Sc5#
      • 1...Sc2
        • 2.Se5#
      • 1...Sc4
        • 2.Qf5#

There are these versions: 178987

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(j);P_PINQ(I),SBLOCK::S(C)
    • S(d);P_PINS(C),SBLOCK::QAB(I)
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • B(j);P_PINQ(I),P_SPINB(j)::S(C)
      • Refutation
        • P(h);XB(E)
    • Try
      • R(B);CHECK
      • Vars
        • P(g);P_SPINP(g)::R(B),XP(g)
      • Refutation
        • P(g);XR(B)
    • Try
      • Q(I);CHECK,XP(h)
      • Vars
        • S(d);P_PINS(C),P_SPINS(d),SBLOCK::QAB(I)
      • Refutation
        • B(j);CHECK,P_SPINB(j)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • K(f);P_SPINP(e),S_FLIGHT::S(F)
      • K(f);S_FLIGHT::QAR(I)+S(F)
      • B(j);P_PINQ(I),SBLOCK::S(C)
      • S(a);SBLOCK::S(F)
      • S(d);P_PINS(C),SBLOCK::QAB(I)
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