MESON Chess Problem Database

Problem Display
PID: 29774 (n6B/1K6/3pp1p1/3kbb1R/NP3Qp1/2pNP2B/2Pq4/3R4 w - - 0 1)

Stocchi, Ottavio

2nd HM., Parallele 50 02. TT, 1947-1948

n6B/1K6/3pp1p1/3kbb1R/NP3Qp1/2pNP2B/2Pq4/3R4

#2

11 + 10

3100 Selected Stocchi (I) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Qxd4#
    • 1...Bxd3
      • 2.Qd4#
    • 1...Sb6
      • 2.Sxb6#
    • 1...Sc7
      • 2.Sb6#
  • Tries
    • 1.Sxe5?
      • threat
        • 2.Sxc3#
        • 2.Qc4#
      • 1...Qd4
        • 2.Sxc3#
        • 2.Rxd4#
        • 2.Qxd4#
      • 1...Bd3
        • 2.Qd4#
      • 1...Be4
        • 2.Sxc3#
      • 1...Sb6
        • 2.Sxc3#
        • 2.Sxb6#
      • 1...dxe5!
    • 1.Bg2+?
      • 1...Be4
        • 2.Qxe4#
      • 1...Qxg2!
  • Keys
    • 1.Sdb2!
      • threat
        • 2.Qc4#
      • 1...Bxf4
        • 2.Sxc3#
        • 2.Bg2#
      • 1...Bxh8
        • 2.Bg2#
      • 1...cxb2
        • 2.c4#
      • 1...Qd4
        • 2.Sxc3#
      • 1...Bd4
        • 2.e4#
      • 1...Bf6
        • 2.Bg2#
      • 1...Bg7
        • 2.Bg2#
      • 1...Bd3
        • 2.Qd4#
      • 1...Be4
        • 2.Sxc3#
      • 1...Sb6
        • 2.Sxb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • B(e);N_GUARD,P_SPINB(f)::QAR1(H),XB(e)
    • B(f);P_SPINB(e),XS(C)::QAR1(H)
    • S(j);N_GUARD::S(F),XS(j)
    • S(j);N_GUARD::S(F)
  • Tries
    • Try
      • S(C);P_PINQ(a),XB(e)
      • Threat
        • DUALS(2)
      • Vars
        • B(f);N_SPINQ(a),S_CUTQ(a)::QAR1(H)
        • B(f);::S(F),XP(b)
      • Refutation
        • P(g);XS(C)
    • Try
      • B(E);CHECK
      • Vars
        • B(f);N_GUARD,P_SPINB(f)::QAB1(H),XB(f)
      • Refutation
        • Q(a);XB(E)
  • Actual
    • S(C);P_PINQ(a)
    • Threat
      • QAB1(H)
    • Vars
      • B(e);P_SPINB(f),XB(K)::B(E)
      • P(b);OGATE,XS(C)::P(B)
      • Q(a);S_CUTB(e)::S(F),XP(b)
      • B(e);N_SPINQ(a),P_SPINB(f)::P(D)
      • B(e);P_SPINB(f)::B(E)
      • B(f);N_SPINQ(a),P_SPINB(e),S_CUTQ(a)::QAR1(H)
      • B(f);P_SPINB(e)::S(F),XP(b)
      • S(j);N_GUARD::S(F),XS(j)
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