MESON Chess Problem Database

Problem Display
PID: 67713 (3rB3/4p3/3n2R1/BPkpR3/1rP2NK1/1bp1P3/1qP5/8 w - - 0 1)

Stocchi, Ottavio

7th Comm., FIDE Ty., 1958-1959

3rB3/4p3/3n2R1/BPkpR3/1rP2NK1/1bp1P3/1qP5/8

#2

10 + 9

5407 Selected Stocchi (II) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc4
      • 2.Rxd5#
    • 1...Bxc4
      • 2.Se6#
    • 1...Sxc4
      • 2.Sd3#
    • 1...Se4
      • 2.Rc6#
    • 1...Sxb5
      • 2.Rc6#
    • 1...Sf5
      • 2.Rc6#
    • 1...Sb7
      • 2.Rc6#
    • 1...Sf7
      • 2.Rc6#
    • 1...Sc8
      • 2.Rc6#
    • 1...Sxe8
      • 2.Rc6#
  • Keys
    • 1.Sxd5!
      • threat
        • 2.Sb6#
      • 1...Rxc4+
        • 2.Sf4#
      • 1...Kxc4
        • 2.Sb6#
      • 1...Bxc4
        • 2.Bb6#
      • 1...Sxc4
        • 2.Bxb4#
      • 1...Sxb5
        • 2.Rc6#
      • 1...Sxe8
        • 2.Rc6#
      • 1...Se4
        • 2.Rc6#
      • 1...Sf5
        • 2.Rc6#
      • 1...Sb7
        • 2.Rc6#
      • 1...Sf7
        • 2.Rc6#
      • 1...Sc8
        • 2.Rc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(d);P_PINS(D),SBLOCK,XP(C)::R1(H),XP(f)
    • B(b);SBLOCK,XP(C)::S(D)
    • S(g);SBLOCK,XP(C)::S(D)
    • S(g);OGATE::R1(I)
    • S(g);OGATE,XP(G)::R1(I)
    • S(g);OGATE,XB(J)::R1(I)
  • Actual
    • S(D);P_SPINP(C),XP(f)
    • Threat
      • R(H)+S(D)
    • Vars
      • R(d);CHECK,SBLOCK,XP(C)::R(H)+S(D)
      • K(e);P-FLIGHT,XP(C)::S(D)
      • B(b);SBLOCK,XP(C)::B(F)
      • S(g);SBLOCK,XP(C)::B(F),XR(d)
      • S(g);OGATE,XP(G)::R1(I)
      • S(g);OGATE,XB(J)::R1(I)
      • S(g);N_PINP(C),OGATE::R1(I)
      • S(g);OGATE::R1(I)
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