MESON Chess Problem Database

Problem Display
PID: 2114 (3n2B1/1N6/1p6/1n2p3/3pk1pB/R2p2P1/4P1Nb/K6Q w - - 0 1)

Brown, Theodore Morris

Source?, 0000

3n2B1/1N6/1p6/1n2p3/3pk1pB/R2p2P1/4P1Nb/K6Q

#2

9 + 9

1679 American Chess Nuts 1868

SOLUTION

  • SOUND
  • Sets
    • 1...Sxa3
      • 2.Sd6#
    • 1...Sc3
      • 2.Sd6#
    • 1...Sd6
      • 2.Sxd6#
    • 1...Sa7
      • 2.Sd6#
    • 1...Sc7
      • 2.Sd6#
    • 1...dxe2
      • 2.Se3#
    • 1...d2
      • 2.Se3#
  • Tries
    • 1.Sf4+?
      • 1...Kf5
        • 2.Bh7#
      • 1...Ke3!
    • 1.Sc5+?
      • 1...Kf5
        • 2.Bh7#
      • 1...bxc5!
    • 1.exd3+?
      • 1...Kf3
        • 2.Qf1#
      • 1...Kf5!
  • Keys
    • 1.Bxd8!
      • 1...Kf5
        • 2.Sh4#
      • 1...Bxg3
        • 2.Qh7#
      • 1...Sxa3
        • 2.Sd6#
      • 1...dxe2
        • 2.Se3#
        • 2.Sh4#
      • 1...Bg1
        • 2.Qh7#
      • 1...Sc3
        • 2.Sd6#
      • 1...Sd6
        • 2.Sxd6#
      • 1...Sa7
        • 2.Sd6#
      • 1...Sc7
        • 2.Sd6#
      • 1...d2
        • 2.Se3#
        • 2.Sh4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(f);N_GUARD,XR(E)::S(H)
    • S(f);N_GUARD::S(H)
    • S(f);N_GUARD::S(H),XS(f)
    • P(b);XP(C)::QAB(B)+S(D)
    • P(b);::QAB(B)+S(D)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(d);S_FLIGHT::B(I)
      • Refutation
        • K(d);P-FLIGHT,P_SPINP(b)
    • Try
      • S(H);CHECK
      • Vars
        • K(d);S_FLIGHT::B(I)
      • Refutation
        • P(h);XS(H)
    • Try
      • P(C);CHECK,XP(b)
      • Vars
        • K(d);S_FLIGHT::QAR2(B)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • B(G);XS(i)
    • Vars
      • K(d);S_FLIGHT::S(D)
      • B(a);OGATE,XP(F)::QAB(B)
      • S(f);N_GUARD,XR(E)::S(H)
      • B(a);OGATE::QAB(B)
      • S(f);N_GUARD::S(H)
      • S(f);N_GUARD::S(H),XS(f)
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