MESON Chess Problem Database

Problem Display
PID: 67085 (8/2Kb1Q2/2n1p3/N3kPp1/2p2Rpb/2PP1p2/B4PNq/2B5 w - - 0 1)

Stocchi, Ottavio

3rd Prize=, Israel Problemists' Association, 1953/II

8/2Kb1Q2/2n1p3/N3kPp1/2p2Rpb/2PP1p2/B4PNq/2B5

#2

11 + 10

5407 Selected Stocchi (II) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Be8
      • 2.Qxe6#
    • 1...cxd3
      • 2.Qg7#
    • 1...exf5
      • 2.Sxc4#
  • Tries
    • 1.Sxc6+?
      • 1...Bxc6
        • 2.Qxe6#
      • 1...Kd5!
    • 1.Rxc4?
      • threat
        • 2.Re4#
        • 2.Rc5#
      • 1...Bxf2
        • 2.Re4#
      • 1...exf5
        • 2.Rc5#
      • 1...Qf4
        • 2.Rc5#
      • 1...Sb4
        • 2.Re4#
      • 1...Sd4
        • 2.Rc5#
      • 1...Se7
        • 2.Re4#
      • 1...Kd5+!
    • 1.Qxd7?
      • threat
        • 2.Qxe6#
      • 1...exf5
        • 2.Rxf5#
        • 2.Qxf5#
        • 2.Qd6#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Sd8
        • 2.Qd4#
      • 1...Kf6!
    • 1.d4+?
      • 1...Kd5
        • 2.Se3#
        • 2.Bxc4#
        • 2.Qxd7#
      • 1...Sxd4!
  • Keys
    • 1.Se3!
      • threat
        • 2.Re4#
      • 1...Kxf4
        • 2.Sexc4#
      • 1...Qxf4
        • 2.Qg7#
      • 1...cxd3
        • 2.Sxg4#
      • 1...gxf4
        • 2.Saxc4#
      • 1...exf5
        • 2.Sexc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(j);N_GUARD::QAR1(K),XP(i)
    • P(c);XP(F)::QAB(K)
    • P(i);XP(I)::S(H),XP(c)
  • Tries
    • Try
      • S(H);CHECK,XS(h)
      • Vars
        • B(j);XS(H)::QAR1(K),XP(i)
      • Refutation
        • K(f);P-FLIGHT,P_PINR(G),P_SPINP(c)
    • Try
      • R(G);XP(c)
      • Threat
        • DUALS(2)
      • Vars
        • B(e);XP(C)::R1(G)
        • P(i);XP(I)::R(G)
        • Q(a);::R(G)
        • S(h);::R1(G)
        • S(h);::R(G)
      • Refutation
        • K(f);CHECK,P-FLIGHT,P_SPINP(i)
    • Try
      • Q(K);XB(j)
      • Threat
        • QAR1(K),XP(i)
      • Vars
        • S(h);N_GUARD::QAB1(K),XS(h)
        • S(h);N_GUARD::QAB1(K)
      • Refutation
        • K(f);P_PINR(G),S_FLIGHT
    • Try
      • P(F);CHECK
      • Refutation
        • S(h);XP(F)
  • Actual
    • S(D);
    • Threat
      • R1(G)
    • Vars
      • K(f);S_FLIGHT,XR(G)::B(A)+S(D),XP(c)
      • Q(a);SBLOCK,XR(G)::QAB(K)
      • P(c);XP(F)::S(D),XP(d)
      • P(g);SBLOCK,XR(G)::S(H),XP(c)
      • P(i);XP(I)::S(D),XP(c)
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