MESON Chess Problem Database

Problem Display
PID: 133079 (8/8/2Q5/k2p1n2/4p3/p1K5/3B4/n7 w - - 0 1)

Ferron de la Fuente, Ernesto

Problem Observer, 2006

8/8/2Q5/k2p1n2/4p3/p1K5/3B4/n7

#2

3 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Sc2
      • 2.Kxc2#
    • 1...Sb3
      • 2.Kxb3#
    • 1...Se3
      • 2.Kd4#
    • 1...Sg3
      • 2.Kd4#
    • 1...Sd4
      • 2.Kxd4#
    • 1...Sh4
      • 2.Kd4#
    • 1...Sd6
      • 2.Kd4#
    • 1...Sh6
      • 2.Kd4#
    • 1...Se7
      • 2.Kd4#
    • 1...Sg7
      • 2.Kd4#
    • 1...a2
      • 2.Kb2#
    • 1...d4+
      • 2.Kc4#
  • Tries
    • 1.Qc5+?
      • 1...Ka4
        • 2.Qb4#
      • 1...Ka6!
    • 1.Qb6+?
      • 1...Ka4
        • 2.Qb4#
        • 2.Qa6#
      • 1...Kxb6!
  • Keys
    • 1.Be1!
      • 1...d4+
        • 2.Kc4#
      • 1...Sc2
        • 2.Kxc2#
      • 1...Sb3
        • 2.Kxb3#
      • 1...Se3
        • 2.Kd4#
      • 1...Sg3
        • 2.Kd4#
      • 1...Sd4
        • 2.Kxd4#
      • 1...Sh4
        • 2.Kd4#
      • 1...Sd6
        • 2.Kd4#
      • 1...Sh6
        • 2.Kd4#
      • 1...Se7
        • 2.Kd4#
      • 1...Sg7
        • 2.Kd4#
      • 1...a2
        • 2.Kb2#
      • 1...e3
        • 2.Kd3#

This is after

After a problem by J F Ling.

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(a);::B(A)+K(B),XS(a)
    • S(f);::B(A)+K(B)
    • S(f);::B(A)+K(B),XS(f)
    • S(f);SBLOCK::B(A)+K(B)
    • P(b);::B(A)+K(B)
    • P(e);CHECK::B(A)+K(B)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR1(C)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Refutation
        • K(d);S_FLIGHT,XQ(C)
  • Actual
    • B(A);
    • Vars
      • P(e);CHECK::B(A)+K(B)
      • S(a);::B(A)+K(B),XS(a)
      • S(f);::B(A)+K(B)
      • S(f);::B(A)+K(B),XS(f)
      • P(b);::B(A)+K(B)
      • P(c);::B(A)+K(B)
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