MESON Chess Problem Database

Problem Display
PID: 64361 (3rrB2/8/6q1/p2N1n1R/p1kp2R1/P3pB2/1Q2P3/3K1Nnb w - - 0 1)

Stocchi, Ottavio

Comm., Bulletin Ouvrier des Echecs, 1952

3rrB2/8/6q1/p2N1n1R/p1kp2R1/P3pB2/1Q2P3/3K1Nnb

#2

10 + 11

5407 Selected Stocchi (II) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Qxh5
      • 2.Sb6#
    • 1...Qf7
      • 2.Sb6#
    • 1...Qh7
      • 2.Sb6#
    • 1...Qxg4
      • 2.Sb6#
    • 1...Qg5
      • 2.Sb6#
    • 1...Qb6
      • 2.Sxb6#
    • 1...Qg7
      • 2.Sb6#
    • 1...Qg8
      • 2.Sb6#
    • 1...Sg3
      • 2.Rxd4#
    • 1...Sh4
      • 2.Rxd4#
    • 1...Sd6
      • 2.Sb6#
    • 1...Sh6
      • 2.Rxd4#
    • 1...Se7
      • 2.Sdxe3#
    • 1...Sg7
      • 2.Rxd4#
  • Tries
    • 1.Sdxe3+?
      • 1...Rxe3
        • 2.Sd2#
      • 1...Sxe3+!
    • 1.Qc1+?
      • 1...Kb3
        • 2.Qc2#
      • 1...Kb5!
  • Keys
    • 1.Sc7!
      • threat
        • 2.Qc2#
      • 1...Sxe2
        • 2.Bxe2#
      • 1...Sg3
        • 2.Rc5#
      • 1...Sh4
        • 2.Rc5#
      • 1...Sd6
        • 2.Rxd4#
      • 1...Sh6
        • 2.Rc5#
      • 1...Se7
        • 2.Sxe3#
      • 1...Sg7
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 6
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • Q(i);N_GUARD,XR(I)::S(H)
    • Q(i);N_GUARD::S(H)
    • Q(i);N_GUARD,N_SPINP(f),XR(G)::S(H)
    • Q(i);N_GUARD::S(H),XQ(i)
    • S(h);N_GUARD::R1(G),XP(f)
    • S(h);S_CUTQ(i)::S(H)
    • S(h);N_GUARD,S_CUTR(k)::S(H),XP(c)
  • Tries
    • Try
      • S(H);CHECK,XP(c)
      • Vars
        • R(k);XS(H)::S(B)
      • Refutation
        • S(h);CHECK,XS(H)
    • Try
      • Q(C);CHECK
      • Vars
        • K(e);N_SPINP(f),S_FLIGHT::QAB1(C)
      • Refutation
        • K(e);N_SPINP(f),S_FLIGHT
  • Actual
    • S(H);
    • Threat
      • QAR2(C)
    • Vars
      • S(a);OGATE,XP(D)::B(F),XS(a)
      • S(h);OGATE::R1(I)
      • S(h);N_GUARD,S_CUTR(j)::R1(G),XP(f)
      • S(h);N_GUARD,S_CUTR(k)::S(B),XP(c)
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