MESON Chess Problem Database

Problem Display
PID: 97301 (B7/8/5pK1/qQ2RN2/n1pp1k2/R3pP2/5N2/2B1bb2 w - - 0 1)

Stocchi, Ottavio

Problemas, 1950

B7/8/5pK1/qQ2RN2/n1pp1k2/R3pP2/5N2/2B1bb2

#2

9 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Be2
      • 2.Sh3#
    • 1...Bd3
      • 2.Sh3#
    • 1...Bh3
      • 2.Sxh3#
    • 1...d3
      • 2.Bxe3#
  • Keys
    • 1.Rexe3!
      • threat
        • 2.Re4#
      • 1...dxe3
        • 2.Bxe3#
      • 1...Qc3
        • 2.Qb8#
      • 1...Bc3
        • 2.Rexc3#
      • 1...Bd3
        • 2.Sh3#
      • 1...Sc3
        • 2.Rxe1#
      • 1...c3
        • 2.Rxe1#
      • 1...d3
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • B(b);N_GUARD::S(B)
    • B(b);N_GUARD,P_PINS(G)::S(B)
    • B(b);N_GUARD::S(B),XB(b)
    • P(f);N_GUARD::B(A),XP(c)
  • Actual
    • R(F);XP(c)
    • Threat
      • B(A)+R(F),DCHECK
    • Vars
      • P(f);OGATE,P_SPINP(f),XR(F)::B(A),XP(f)
      • Q(h);N_GUARD::QAB(E)
      • B(a);N_GUARD::B(A)+R(F),XB(a)
      • B(b);N_GUARD,P_PINS(G)::S(B)
      • S(d);S_CUTQ(h)::B(A)+R(F),XB(a)
      • P(e);S_CUTQ(h)::B(A)+R(F),XB(a)
      • P(f);OGATEB::QAR(E),XP(e)
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