MESON Chess Problem Database

Problem Display
PID: 29051 (7K/b1P5/r1p1NQ1p/P2k1N2/r4p2/PP2P3/1nB5/2R2qB1 w - - 0 1)

Stocchi, Ottavio

L'Italia Scacchistica, 1940

7K/b1P5/r1p1NQ1p/P2k1N2/r4p2/PP2P3/1nB5/2R2qB1

#2

12 + 9

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

SOLUTION

  • SOUND
  • Sets
    • 1...Rxa3
      • 2.e4#
    • 1...R4xa5
      • 2.e4#
    • 1...Bd4
      • 2.e4#
    • 1...Sc4
      • 2.e4#
  • Tries
    • 1.Sxf4+?
      • 1...Kc5
        • 2.Qe5#
      • 1...Rxf4
        • 2.Qd6#
      • 1...Qxf4!
    • 1.Sc5?
      • threat
        • 2.Qd6#
      • 1...Kxc5
        • 2.Qe5#
      • 1...Sc4
        • 2.Qd4#
        • 2.e4#
      • 1...Bxc5!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Qd6#
      • 1...Kc5
        • 2.Qe5#
      • 1...Bd4
        • 2.Be4#
      • 1...Bc5
        • 2.Qe6#
      • 1...Sc4
        • 2.e4#
      • 1...c5
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(c);N_GUARD,XP(D)::P(F)
    • R(c);N_GUARD,XP(G)::P(F)
    • B(i);P_PINQ(J),S_CUTR(c)::P(F)
    • S(b);S_CUTR(c)::P(F)
  • Tries
    • Try
      • S(I);CHECK,XP(d)
      • Vars
        • K(e);P-FLIGHT::QAR2(J)
        • R(c);XS(I)::QAR1(J)
      • Refutation
        • Q(a);XS(I)
    • Try
      • S(I);
      • Threat
        • QAR1(J)
      • Vars
        • K(e);P-FLIGHT,XS(I)::QAR2(J)
      • Refutation
        • B(i);XS(I)
  • Actual
    • S(I);
    • Threat
      • QAR1(J)
    • Vars
      • K(e);P-FLIGHT::QAR2(J)
      • B(i);P_PINQ(J),S_CUTR(c)::B(C)
      • B(i);SBLOCK::QAB1(J)
      • S(b);S_CUTR(c)::P(F)
      • P(g);SBLOCK::S(H)
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