MESON Chess Problem Database

Problem Display
PID: 157695 (8/8/1npp4/K1k5/2pp4/5Q2/BP6/8 w - - 0 1)

Vecu, Florea

7th Comm., Best Problems, 2008

8/8/1npp4/K1k5/2pp4/5Q2/BP6/8

#2

4 + 6

4901 Best Problems 2009

SOLUTION

  • SOUND
  • Sets
    • 1...c3
      • 2.b4#
    • 1...d5
      • 2.Qa3#
      • 2.Qf8#
  • Tries
    • 1.Qf1?
      • 1...Kd5
        • 2.Qf5#
      • 1...Sa4
        • 2.Qxc4#
      • 1...Sd5
        • 2.Qxc4#
      • 1...Sd7
        • 2.Qxc4#
      • 1...Sa8
        • 2.Qxc4#
      • 1...Sc8
        • 2.Qxc4#
      • 1...c3
        • 2.b4#
      • 1...d5
        • 2.Qf8#
      • 1...d3!
    • 1.Qf5+?
      • 1...d5
        • 2.Qf8#
      • 1...Sd5!
  • Keys
    • 1.Qd3!
      • 1...Kd5
        • 2.Qf5#
      • 1...cxd3
        • 2.b4#
      • 1...Sa4
        • 2.Qxc4#
      • 1...Sd5
        • 2.Qxc4#
      • 1...Sd7
        • 2.Qxc4#
      • 1...Sa8
        • 2.Qxc4#
      • 1...Sc8
        • 2.Qxc4#
      • 1...c3
        • 2.b4#
      • 1...d5
        • 2.Qa3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • P(a);N_GUARD::P(B)
  • Tries
    • Try
      • Q(C);
      • Vars
        • K(c);P-FLIGHT,P_SPINP(a)::QAR2(C)
        • S(d);N_GUARD::QAR1(C),XP(a)
        • P(a);N_GUARD::P(B)
        • P(f);OGATEB,SBLOCK::QAB(C)
      • Refutation
        • P(b);
    • Try
      • Q(C);CHECK
      • Vars
        • P(f);OGATEB,P_SPINP(f),SBLOCK::QAB(C)
      • Refutation
        • S(d);P_SPINS(d)
  • Actual
    • Q(C);
    • Vars
      • K(c);P-FLIGHT,P_SPINP(a)::QAR2(C)
      • P(a);N_GUARD,XQ(C)::P(B)
      • S(d);N_GUARD::QAR1(C),XP(a)
      • P(a);N_GUARD::P(B)
      • P(f);SBLOCK::QAB(C)
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