MESON Chess Problem Database

Problem Display
PID: 184869 (4Q3/3qP3/2kB4/P1p5/2p1N3/N1P5/6BK/1n5n w - - 0 1)

Stubbs, Charles Francis

American Chess Bulletin, 1908

4Q3/3qP3/2kB4/P1p5/2p1N3/N1P5/6BK/1n5n

#2

9 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qxd7+?
      • 1...Kd5
        • 2.Sd2#
        • 2.Sf2#
        • 2.Sg3#
        • 2.Sxc5#
        • 2.Sg5#
        • 2.Sf6#
        • 2.Bg3#
        • 2.Bf4#
        • 2.Bc7#
        • 2.Bb8#
      • 1...Kxd7!
  • Keys
    • 1.Bb8!
      • threat
        • 2.Sd2#
        • 2.Sf2#
        • 2.Sg3#
        • 2.Sg5#
        • 2.Sd6#
        • 2.Sf6#
      • 1...Kd5
        • 2.Sg5#
        • 2.Qxd7#
      • 1...Kb7
        • 2.Sxc5#
      • 1...Qxe8
        • 2.Sf6#
      • 1...Sxa3
        • 2.Sd6#
      • 1...Sxc3
        • 2.Sxc3#
      • 1...Sd2
        • 2.Sxd2#
      • 1...Sf2
        • 2.Sxf2#
      • 1...Sg3
        • 2.Sxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(I);CHECK,XQ(f)
      • Refutation
        • K(e);S_FLIGHT,XQ(I)
  • Actual
    • B(G);
    • Threat
      • DUALS(6)
    • Vars
      • K(e);N_SPINQ(f),S_FLIGHT::B(A)+S(E),DCHECK,XP(d)
      • Q(f);N_SPINQ(f),XQ(I)::B(A)+S(E)
      • S(a);XS(C)::B(A)+S(E)
      • S(a);XP(D)::B(A)+S(E),XS(a)
      • S(a);::B(A)+S(E),XS(a)
      • S(b);::B(A)+S(E),XS(b)
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