MESON Chess Problem Database

Problem Display
PID: 222617 (2Q5/2K5/8/8/2n5/3R4/kp2N3/bN6 w - - 0 1)

Flagg, John O

Nashville Daily American, 1884

2Q5/2K5/8/8/2n5/3R4/kp2N3/bN6

#2

5 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Ra3+?
      • 1...Kxb1
        • 2.Qf5#
      • 1...Sxa3!
  • Keys
    • 1.Qf5!
      • 1...Kxb1
        • 2.Ra3#
      • 1...Sd2
        • 2.Ra3#
      • 1...Sa3
        • 2.Rxa3#
      • 1...Se3
        • 2.Ra3#
      • 1...Sa5
        • 2.Ra3#
      • 1...Se5
        • 2.Ra3#
      • 1...Sb6
        • 2.Ra3#
      • 1...Sd6
        • 2.Ra3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(b);S_FLIGHT,XS(A)::QAB(E)
      • Refutation
        • S(d);XR(C)
  • Actual
    • Q(E);
    • Vars
      • K(b);S_FLIGHT,XS(A)::QAB(E)+R(C)
      • S(d);N_GUARD::R1(C)
      • S(d);N_GUARD::R1(C),XS(d)
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