MESON Chess Problem Database

Problem Display
PID: 34183 (6b1/1N1rn1p1/1PBQN2R/RP3k2/2K1pp1B/3p3P/5prb/7n w - - 0 1)

Stocchi, Ottavio

1st HM., American Chess Problemist, 1950

6b1/1N1rn1p1/1PBQN2R/RP3k2/2K1pp1B/3p3P/5prb/7n

#2

11 + 12

3100 Selected Stocchi (I) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Rg3
      • 2.Qxf4#
    • 1...Bg1
      • 2.Qxf4#
    • 1...Bxe6+
      • 2.Qxe6#
    • 1...Bh7
      • 2.Sd4#
    • 1...Sg3
      • 2.Qxf4#
    • 1...Sd5
      • 2.Sd4#
    • 1...Sxc6
      • 2.bxc6#
  • Keys
    • 1.Kd4!
      • threat
        • 2.Bxe4#
      • 1...Rxd6+
        • 2.Sxd6#
      • 1...Sxc6+
        • 2.bxc6#
      • 1...Sg3
        • 2.Sxg7#
      • 1...Sd5
        • 2.Qe5#
      • 1...e3
        • 2.Be4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(c);S_CUTB(d)::QAR1(H),XP(g)
    • B(d);N_GUARD::QAR1(H),XP(g)
    • B(l);CHECK,OGATE,XS(I)::QAB1(H),XB(l)
    • B(l);N_PINS(I)::S(I)
    • S(a);S_CUTB(d)::QAR1(H),XP(g)
    • S(j);N_PINS(I)::S(I)
    • S(j);OGATE,XB(G)::R(D)+P(E),XS(j)
  • Actual
    • K(B);N_SPINS(I),P-FLIGHT,P_SPINQ(H)
    • Threat
      • B(G),XP(f)
    • Vars
      • R(i);CHECK,XQ(H)::S(K),XR(i)
      • S(j);CHECK,OGATE,XB(G)::R(D)+P(E),XS(j)
      • S(a);S_CUTR(c)::S(I),XP(k)
      • S(j);N_PINQ(H)::QAR1(H)
      • P(f);::B(G)
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Developed and maintained by Brian Stephenson.
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