MESON Chess Problem Database

Problem Display
PID: 54885 (7r/6Bp/4p3/4p1nK/R3Pk1N/5pp1/3n2P1/2b1QR2 w - - 0 1)

Stocchi, Ottavio

BCF 089. Ty., 1958-1959

7r/6Bp/4p3/4p1nK/R3Pk1N/5pp1/3n2P1/2b1QR2

#2

8 + 10

5407 Selected Stocchi (II) 2003

SOLUTION

  • SOUND
  • Sets
    • 1...Bb2
      • 2.Qxd2#
    • 1...Ba3
      • 2.Qxd2#
    • 1...Sdxe4
      • 2.Qxc1#
    • 1...Sgxe4
      • 2.Bh6#
    • 1...h6
      • 2.Sg6#
  • Tries
    • 1.Qxg3+?
      • 1...Kxg3
        • 2.Bxe5#
      • 1...Ke3!
    • 1.gxf3?
      • threat
        • 2.Sg2#
      • 1...Sdxe4
        • 2.Qxc1#
      • 1...Sgxe4
        • 2.Bh6#
      • 1...g2
        • 2.Sxg2#
      • 1...Sxf1!
  • Keys
    • 1.Sxf3!
      • threat
        • 2.Bxe5#
      • 1...Sdxf3
        • 2.Qxc1#
      • 1...Sdxe4
        • 2.Sxg5#
      • 1...Sgxf3
        • 2.Bh6#
      • 1...Sgxe4
        • 2.Sxd2#
      • 1...Bb2
        • 2.Qxd2#
      • 1...Sc4
        • 2.Sxg5#
      • 1...Sf7
        • 2.Sxd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::QAB(A),XS(b)
    • S(b);OGATEB,P_SPINS(b),XP(E)::QAB(A),XB(a)
    • S(g);OGATEB,P_SPINS(g),XP(E)::B(H)
    • P(i);N_GUARD::S(F)
  • Tries
    • Try
      • Q(A);CHECK,XP(d)
      • Vars
        • K(e);N_SPINP(c),S_FLIGHT,XQ(A)::B(H),XP(f)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • P(C);XP(c)
      • Threat
        • S(F)
      • Vars
        • S(b);OGATEB,P_SPINS(b),XP(E)::QAB(A),XB(a)
        • S(g);OGATEB,P_SPINS(g),XP(E)::B(H)
        • P(d);::S(F),XP(d)
      • Refutation
        • S(b);XR(B)
  • Actual
    • S(F);XP(c)
    • Threat
      • B(H),XP(f)
    • Vars
      • S(b);OGATEB,P_SPINS(b),XS(F)::QAB(A),XB(a)
      • S(b);N_GUARD,P_SPINS(b),XP(E)::R(B)+S(F),XS(g)
      • S(g);OGATEB,P_SPINS(g),XS(F)::B(H)
      • S(g);N_GUARD,P_SPINS(g),XP(E)::R(B)+S(F),XS(b)
      • B(a);N_GUARD::QAB(A),XS(b)
      • S(b);N_GUARD::R(B)+S(F),XS(g)
      • S(g);N_GUARD::R(B)+S(F),XS(b)
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