MESON Chess Problem Database

Problem Display
PID: 120965 (8/8/3p4/1p6/p2k1NK1/PPp5/7p/2Q4B w - - 0 1)

Stocchi, Ottavio

Joint Israeli Informal Ty., 1956

8/8/3p4/1p6/p2k1NK1/PPp5/7p/2Q4B

#2

6 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Qe3#
    • 1...Ke5
      • 2.Qxc3#
  • Tries
    • 1.Qd2+?
      • 1...Kc5
        • 2.Qe3#
        • 2.Qf2#
      • 1...Ke5
        • 2.Qxc3#
      • 1...cxd2!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Qe3#
        • 2.Qxc3#
      • 1...Kd3
        • 2.Qd1#
      • 1...Kc5
        • 2.Qxc3#
      • 1...Ke5
        • 2.Qe3#
      • 1...axb3
        • 2.Qxc3#
      • 1...c2
        • 2.Qe3#
      • 1...b4
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(d);P_SPINP(b),S_FLIGHT::QAB(A)
    • K(d);S_FLIGHT::QAB(A),XP(b)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);S_FLIGHT::QAB(A),XP(b)
      • Refutation
        • P(b);XQ(A)
  • Actual
    • S(E);
    • Threat
      • DUALS(2)
    • Vars
      • K(d);P-FLIGHT::QAR2(A)
      • K(d);P_SPINP(b),S_FLIGHT::QAR2(A),XP(b)
      • K(d);S_FLIGHT::QAR2(A)
      • P(c);XP(D)::QAB1(A),XP(b)
      • P(b);::QAB1(A)
      • P(e);::QAB1(A)
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