MESON Chess Problem Database

Problem Display
PID: 17867 (3B4/6r1/R4Nb1/4kn1Q/5p2/2P3pq/3Prb2/KB3n2 w - - 0 1)

Stocchi, Ottavio

Parallele 50, 1951

3B4/6r1/R4Nb1/4kn1Q/5p2/2P3pq/3Prb2/KB3n2

#2

8 + 10

5407 Selected Stocchi (II) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.d4#
    • 1...Rc7
      • 2.Bxc7#
    • 1...Rg8
      • 2.Bc7#
    • 1...Be1
      • 2.d4#
    • 1...Bf7
      • 2.Bc7#
    • 1...Se3
      • 2.d4#
  • Keys
    • 1.Qf3!
      • threat
        • 2.Qd5#
      • 1...Rxd2
        • 2.Qe4#
      • 1...Qg2
        • 2.Sg4#
      • 1...Qh1
        • 2.Sg4#
      • 1...Re4
        • 2.Qxe4#
      • 1...Rd7
        • 2.Sxd7#
      • 1...Bf7
        • 2.Sd7#
      • 1...S1e3
        • 2.Qe4#
      • 1...S5e3
        • 2.d4#
      • 1...Se7
        • 2.Bc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 7
    • REMOVED MATES = 4
  • Sets
    • R(b);S_CUTB(c)::P(C)
    • R(j);N_GUARD::B(H),XR(j)
    • R(j);N_GUARD::B(H)
    • B(c);N_GUARD::P(C)
    • B(i);S_CUTR(j)::B(H)
    • S(a);S_CUTB(c)::P(C)
  • Actual
    • Q(E);N_PINS(h)
    • Threat
      • QAR1(E)
    • Vars
      • R(b);N_GUARD,XP(C)::QAR1(E)
      • Q(e);N_GUARD::S(G)
      • R(b);N_GUARD::QAR1(E),XR(b)
      • R(j);N_GUARD::S(G),XR(j)
      • B(i);S_CUTR(j)::S(G)
      • S(a);S_CUTR(b)::QAR1(E)
      • S(h);N_GUARD,S_CUTB(c)::P(C)
      • S(h);N_GUARD,S_CUTR(j)::B(H)
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