MESON Chess Problem Database

Problem Display
PID: 124289 (1b6/4n3/8/Q1N2p1P/1r3k1B/7P/5P2/4N2K w - - 0 1)

Kotrc, Jan

The Times, 1897

1b6/4n3/8/Q1N2p1P/1r3k1B/7P/5P2/4N2K

#2

8 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.Scd3#
    • 1...Ba7
      • 2.Qc7#
    • 1...Bc7
      • 2.Qxc7#
  • Keys
    • 1.Qd8!
      • 1...Ke5
        • 2.Sed3#
      • 1...Rb1
        • 2.Qd4#
      • 1...Rb2
        • 2.Qd4#
      • 1...Rb3
        • 2.Qd4#
      • 1...Ra4
        • 2.Qxb8#
      • 1...Rc4
        • 2.Qxb8#
      • 1...Rd4
        • 2.Qxd4#
      • 1...Re4
        • 2.Scd3#
      • 1...Rb5
        • 2.Qd4#
      • 1...Rb6
        • 2.Qd4#
      • 1...Rb7
        • 2.Qd4#
      • 1...Be5
        • 2.Qd2#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Ba7
        • 2.Qc7#
        • 2.Qd6#
      • 1...Bc7
        • 2.Qxc7#
      • 1...Sd5
        • 2.Bg3#
      • 1...Sc6
        • 2.Bg3#
      • 1...Sg6
        • 2.Bg3#
      • 1...Sc8
        • 2.Bg3#
      • 1...Sg8
        • 2.Bg3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 17
    • REMOVED MATES = 1
  • Sets
    • R(a);SBLOCK::S(G)
    • B(e);N_GUARD::QAB(F)
    • B(e);N_GUARD::QAB(F),XB(e)
  • Actual
    • Q(F);
    • Vars
      • K(b);S_FLIGHT::S(A)
      • R(a);N_GUARD,P_PINS(A)::QAR2(F)
      • R(a);N_GUARD::QAR2(F)
      • R(a);N_GUARD::QAB(F),XB(e)
      • R(a);N_GUARD::QAR2(F),XR(a)
      • R(a);SBLOCK::S(G)
      • B(e);SBLOCK::QAB(F)
      • B(e);N_GUARD::QAB(F),XB(e)
      • S(d);::B(E)
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