MESON Chess Problem Database

Problem Display
PID: 29928 (1Q5K/2rb4/1N2n2R/4k3/1B1rN2R/b1n1P2B/5P2/8 w - - 0 1)

Stocchi, Ottavio

3rd Prize, Parallele 50, 1948/II

1Q5K/2rb4/1N2n2R/4k3/1B1rN2R/b1n1P2B/5P2/8

#2

10 + 7

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

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Sc4#
    • 1...Ba4
      • 2.Rxe6#
    • 1...Bb5
      • 2.Rxe6#
    • 1...Bc6
      • 2.Rxe6#
    • 1...Be8
      • 2.Rxe6#
    • 1...Sd5
      • 2.Sxd7#
  • Tries
    • 1.Qxc7+?
      • 1...Rd6
        • 2.Qxd6#
      • 1...Sxc7!
    • 1.exd4+?
      • 1...Sxd4
        • 2.Qxc7#
      • 1...Kxd4!
  • Keys
    • 1.Qe8!
      • threat
        • 2.R6h5#
      • 1...Rxe4
        • 2.R4h5#
      • 1...Bxe8
        • 2.Rxe6#
      • 1...Sxe4
        • 2.f4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • R(c);N_GUARD,SBLOCK::S(G)
    • B(g);N_GUARD::R1(H),XS(e)
    • S(b);SBLOCK,S_CUTR(c)::S(G),XB(g)
  • Tries
    • Try
      • Q(I);CHECK,XR(f)
      • Vars
        • R(c);N_GUARD,P_SPINR(c)::QAB1(I),XR(c)
      • Refutation
        • S(e);XQ(I)
    • Try
      • P(B);CHECK,XR(c)
      • Vars
        • S(e);SBLOCK,XP(B)::QAB(I),XR(f)
      • Refutation
        • K(d);N_SPINR(f),S_FLIGHT,XP(B)
  • Actual
    • Q(I);N_PINR(f),P_PINS(e)
    • Threat
      • R(H)
    • Vars
      • R(c);SBLOCK,XS(E)::R(F)
      • B(g);N_GUARD,N_SPINS(e),XQ(I)::R1(H),XS(e)
      • S(b);SBLOCK,XS(E)::P(A)
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