MESON Chess Problem Database

Problem Display
PID: 34187 (3R4/8/8/5pQ1/7n/3bB1N1/2B1p3/K3k2n w - - 0 1)

Stocchi, Ottavio

Szachy, 1950

3R4/8/8/5pQ1/7n/3bB1N1/2B1p3/K3k2n

#2

6 + 6

3100 Selected Stocchi (I) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Sf2
      • 2.Bd2#
    • 1...f4
      • 2.Qa5#
  • Tries
    • 1.Bg1?
      • threat
        • 2.Qc1#
      • 1...Bxc2
        • 2.Qd2#
      • 1...f4
        • 2.Qa5#
      • 1...Sf2!
    • 1.Bd4?
      • threat
        • 2.Qc1#
      • 1...f4
        • 2.Qa5#
      • 1...Sf2
        • 2.Bc3#
      • 1...Bxc2!
    • 1.Bc5?
      • threat
        • 2.Qc1#
      • 1...Bxc2
        • 2.Qd2#
      • 1...Sf2
        • 2.Bb4#
      • 1...f4!
    • 1.Ba7?
      • threat
        • 2.Qc1#
      • 1...Bxc2
        • 2.Qd2#
      • 1...f4
        • 2.Qa5#
      • 1...Sf2!
    • 1.Qf4?
      • threat
        • 2.Bd2#
        • 2.Qb4#
      • 1...Bxc2
        • 2.Qb4#
      • 1...Sxg3
        • 2.Bd2#
        • 2.Qf2#
      • 1...Bc4
        • 2.Bd2#
      • 1...Be4
        • 2.Bd2#
      • 1...Sf3!
  • Keys
    • 1.Bb6!
      • threat
        • 2.Qc1#
      • 1...Bxc2
        • 2.Qd2#
      • 1...f4
        • 2.Qa5#
      • 1...Sf2
        • 2.Ba5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(b);SBLOCK::B(C)
    • P(f);OGATE::QAB(E)
  • Tries
    • Try
      • B(C);
      • Threat
        • QAR2(E)
      • Vars
        • B(d);XB(B)::QAB1(E)
        • P(f);OGATE::QAB(E)
      • Refutation
        • S(b);
    • Try
      • B(C);
      • Threat
        • QAR2(E)
      • Vars
        • P(f);OGATE::QAB(E)
        • S(b);SBLOCK::B(C)
      • Refutation
        • B(d);XB(B)
    • Try
      • B(C);
      • Threat
        • QAR2(E)
      • Vars
        • B(d);XB(B)::QAB1(E)
        • S(b);SBLOCK::B(C)
      • Refutation
        • P(f);
    • Try
      • B(C);
      • Threat
        • QAR2(E)
      • Vars
        • B(d);XB(B)::QAB1(E)
        • P(f);OGATE::QAB(E)
      • Refutation
        • S(b);
    • Try
      • Q(E);
      • Threat
        • DUALS(2)
      • Vars
        • B(d);XB(B)::QAB(E)
        • B(d);::B(C)
      • Refutation
        • S(e);
  • Actual
    • B(C);
    • Threat
      • QAR2(E)
    • Vars
      • B(d);XB(B)::QAB1(E)
      • P(f);OGATE::QAB(E)
      • S(b);SBLOCK::B(C)
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