MESON Chess Problem Database

Problem Display
PID: 2717 (bb2NB2/r5R1/p1k5/3p4/6B1/8/8/1Q5K w - - 0 1)

Taverner, Thomas

British Chess Magazine, 1889

bb2NB2/r5R1/p1k5/3p4/6B1/8/8/1Q5K

#2

6 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rc7
      • 2.Rg6#
    • 1...Rd7
      • 2.Bxd7#
    • 1...Bb7
      • 2.Bd7#
    • 1...Bc7
      • 2.Bd7#
    • 1...d4
      • 2.Bf3#
  • Tries
    • 1.Qc2+?
      • 1...Kb6
        • 2.Qc5#
      • 1...Kb5!
    • 1.Qc1+?
      • 1...Kb6
        • 2.Qc5#
      • 1...Kb5!
  • Keys
    • 1.Sc7!
      • 1...Rxc7
        • 2.Rg6#
      • 1...Bxc7
        • 2.Bd7#
      • 1...Rb7
        • 2.Qg6#
      • 1...Bb7
        • 2.Qg6#
      • 1...d4
        • 2.Bf3#
      • 1...a5
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(d);S_CUTB(f)::R(D)
    • R(d);N_GUARD::B(C),XR(d)
    • B(e);S_CUTR(d)::B(C)
    • B(f);S_CUTR(d)::B(C)
    • P(a);OGATEB::B(C)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);P-FLIGHT::QAB1(A)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);P-FLIGHT::QAB1(A)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(E);
    • Vars
      • R(d);SBLOCK,XS(E)::R(D)
      • B(f);SBLOCK,XS(E)::B(C)
      • R(d);SBLOCK::QAR(A)
      • B(e);SBLOCK::QAR(A)
      • P(a);OGATEB::B(C)
      • P(b);N_GUARD::QAB1(A)
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