MESON Chess Problem Database

Problem Display
PID: 66832 (1K6/1Q1p4/2N5/3p2R1/p2pkP2/4p1P1/1nP1R2n/Br1N3q w - - 0 1)

Stocchi, Ottavio

4th Prize, Israel Problemists' Association, 1952-1953

1K6/1Q1p4/2N5/3p2R1/p2pkP2/4p1P1/1nP1R2n/Br1N3q

#2

10 + 10

5407 Selected Stocchi (II) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Qf3
      • 2.Re5#
    • 1...Sf3
      • 2.Sf2#
    • 1...d3
      • 2.Rxe3#
  • Tries
    • 1.Sc3+?
      • 1...Kf3
        • 2.Sxd4#
        • 2.Se5#
      • 1...dxc3!
  • Keys
    • 1.Sxd4!
      • threat
        • 2.Qxd5#
      • 1...Kxd4
        • 2.Qb4#
      • 1...Sxd1
        • 2.Re5#
      • 1...Sd3
        • 2.Rxe3#
      • 1...Sc4
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • Q(b);SBLOCK::R1(G)
    • S(d);SBLOCK::S(B)
    • P(g);N_GUARD::R1(D),XP(e)
  • Tries
    • Try
      • S(B);CHECK
      • Refutation
        • P(g);XS(B)
  • Actual
    • S(H);XP(g)
    • Threat
      • QAB1(I),XP(i)
    • Vars
      • K(h);N_SPINP(e),OGATEB,P-FLIGHT,P_SPINS(c),XS(H)::QAR2(I)
      • S(c);P_PINQ(I),XS(B)::R1(G)
      • S(c);P_PINQ(I)::R1(D),XP(e)
      • S(c);P_PINQ(I)::S(B)
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