MESON Chess Problem Database

Problem Display
PID: 87859 (8/8/3p2pp/3PP1k1/3QKn2/8/5B2/3B4 w - - 0 1)

Tucker, Frederick G

The Problemist, 1930

8/8/3p2pp/3PP1k1/3QKn2/8/5B2/3B4

#2

6 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...dxe5
      • 2.Qxe5#
  • Tries
    • 1.Qe3?
      • threat
        • 2.Qxf4#
        • 2.Qg3#
      • 1...h5
        • 2.Qxf4#
      • 1...dxe5!
  • Keys
    • 1.Kf3!
      • 1...Kf5
        • 2.Qxf4#
      • 1...Kh5
        • 2.Kxf4#
      • 1...Sxd5
        • 2.Qg4#
      • 1...dxe5
        • 2.Qxe5#
      • 1...Se2
        • 2.Qg4#
      • 1...Sg2
        • 2.Qg4#
      • 1...Sd3
        • 2.Qg4#
      • 1...Sh3
        • 2.Qg4#
      • 1...Sh5
        • 2.Qg4#
      • 1...Se6
        • 2.Qg4#
      • 1...h5
        • 2.Qxf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • P(c);OGATE,XP(F)::QAR2(C),XP(c)
  • Tries
    • Try
      • Q(C);P_PINS(a)
      • Threat
        • DUALS(2)
      • Vars
        • P(e);::QAB1(C),XS(a)
      • Refutation
        • P(c);XP(F)
  • Actual
    • K(D);S_FLIGHT
    • Vars
      • K(b);P-FLIGHT::QAR1(C),XS(a)
      • K(b);P-FLIGHT::B(A)+K(D),XS(a)
      • S(a);OGATE,XP(E)::QAR1(C)
      • P(c);OGATE,XP(F)::QAR2(C),XP(c)
      • S(a);OGATE::QAR1(C)
      • P(e);SBLOCK::QAB1(C),XS(a)
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