MESON Chess Problem Database

Problem Display
PID: 48667 (8/5p2/5Np1/2B1N1P1/4PkBP/Q1n2P1K/3b4/4n3 w - - 0 1)

Bolland, WE

Chess Chips, 1878

8/5p2/5Np1/2B1N1P1/4PkBP/Q1n2P1K/3b4/4n3

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Sc2
      • 2.Sd3#
    • 1...Sg2
      • 2.Sd3#
    • 1...Sd3
      • 2.Sxd3#
    • 1...Sxf3
      • 2.Sd3#
  • Tries
    • 1.Bd4?
      • 1...Sxf3
        • 2.Sd3#
      • 1...Sxe4
        • 2.Sd5#
      • 1...Sc2
        • 2.Sd3#
      • 1...Bc1
        • 2.Qxc1#
      • 1...Sg2
        • 2.Sd3#
      • 1...Sd3
        • 2.Sxd3#
      • 1...Sb1
        • 2.Sd5#
      • 1...Sd1
        • 2.Sd5#
      • 1...Sa2
        • 2.Sd5#
      • 1...Se2
        • 2.Sd5#
      • 1...Sa4
        • 2.Sd5#
      • 1...Sb5
        • 2.Sd5#
      • 1...Sd5
        • 2.Sxd5#
      • 1...Be3!
    • 1.Qxc3?
      • threat
        • 2.Sd5#
      • 1...Sxf3
        • 2.Sd3#
      • 1...Bxc3!
  • Keys
    • 1.Qb2!
      • 1...Kxe5
        • 2.Qb8#
      • 1...Sxf3
        • 2.Sd3#
      • 1...Sxe4
        • 2.Sd5#
      • 1...Sc2
        • 2.Sd3#
      • 1...Bc1
        • 2.Qh2#
      • 1...Be3
        • 2.Qh2#
      • 1...Sg2
        • 2.Sd3#
      • 1...Sd3
        • 2.Sxd3#
      • 1...Sb1
        • 2.Sd5#
      • 1...Sd1
        • 2.Sd5#
      • 1...Sa2
        • 2.Sd5#
      • 1...Se2
        • 2.Sd5#
      • 1...Sa4
        • 2.Sd5#
      • 1...Sb5
        • 2.Sd5#
      • 1...Sd5
        • 2.Sxd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::S(H)
    • S(a);N_GUARD::S(H),XS(a)
    • S(a);N_GUARD,XP(B)::S(H)
  • Tries
    • Try
      • B(G);
      • Vars
        • S(a);N_GUARD,XP(B)::S(H)
        • S(c);N_GUARD,XP(D)::S(J)
        • S(a);N_GUARD::S(H)
        • B(b);OGATEB::QAB(A),XB(b)
        • S(a);N_GUARD::S(H),XS(a)
        • S(c);N_GUARD::S(J)
        • S(c);N_GUARD::S(J),XS(c)
      • Refutation
        • B(b);
    • Try
      • Q(A);XS(c)
      • Threat
        • S(J)
      • Vars
        • S(a);N_GUARD,XP(B)::S(H)
      • Refutation
        • B(b);XQ(A)
  • Actual
    • Q(A);
    • Vars
      • K(d);OGATEB,P_SPINS(c),S_FLIGHT,XS(H)::QAB(A)
      • S(a);N_GUARD,XP(B)::S(H)
      • S(c);N_GUARD,XP(D)::S(J)
      • S(a);N_GUARD::S(H)
      • B(b);OGATE::QAB(A)
      • S(a);N_GUARD::S(H),XS(a)
      • S(c);N_GUARD::S(J)
      • S(c);N_GUARD::S(J),XS(c)
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