MESON Chess Problem Database

Problem Display
PID: 30090 (1b6/Q1N5/K1R2B1n/4NR2/4krp1/3ppp2/B7/8 w - - 0 1)

Stocchi, Ottavio

1st Prize=, Magyar Sakkvilag, 1948

1b6/Q1N5/K1R2B1n/4NR2/4krp1/3ppp2/B7/8

#2

8 + 8

3100 Selected Stocchi (I) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf5
      • 2.Rc4#
    • 1...Sxf5
      • 2.Bd5#
    • 1...d2
      • 2.Bb1#
  • Tries
    • 1.Se6?
      • threat
        • 2.Rxf4#
      • 1...Rxf5
        • 2.Qd4#
      • 1...Bxe5
        • 2.Rxe5#
      • 1...Sxf5
        • 2.Sg5#
      • 1...Kxf5!
    • 1.Be6?
      • threat
        • 2.Rc4#
      • 1...Sxf5
        • 2.Bd5#
      • 1...Bxa7!
    • 1.Qd4+?
      • 1...Kxd4
        • 2.Rxf4#
        • 2.Rc4#
      • 1...Kxf5!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Rxf4#
      • 1...Kxf5
        • 2.Qh7#
      • 1...Rxf5
        • 2.Qxe3#
      • 1...Bxe5
        • 2.Rxe5#
      • 1...Sxf5
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(e);SBLOCK,XR(C)::R(E)
    • S(g);SBLOCK,XR(C)::B(A)
    • P(a);OGATEB::B(A)
  • Tries
    • Try
      • S(H);
      • Threat
        • R1(C),XR(e)
      • Vars
        • R(e);SBLOCK,XR(C)::QAR1(G)
        • B(h);OGATE,XS(B)::R1(C),XB(h)
        • S(g);SBLOCK,XR(C)::S(H)
      • Refutation
        • K(d);S_FLIGHT,XR(C)
    • Try
      • B(A);
      • Threat
        • R(E)
      • Vars
        • S(g);SBLOCK,XR(C)::B(A)
      • Refutation
        • B(h);XQ(G)
    • Try
      • Q(G);CHECK
      • Refutation
        • K(d);S_FLIGHT,XR(C)
  • Actual
    • S(H);
    • Threat
      • R1(C),XR(e)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XR(C)::QAB(G)
      • R(e);SBLOCK,XR(C)::QAR1(G),XP(b)
      • B(h);OGATE,XS(B)::R1(C),XB(h)
      • S(g);SBLOCK,XR(C)::S(H)
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