MESON Chess Problem Database

Problem Display
PID: 142894 (2n5/5R2/2p4N/2N1k2n/R3P2P/7b/3Q2p1/b5K1 w - - 0 1)

Jacobs, Charles Sumner

3rd Prize, St. John Globe, 0000

2n5/5R2/2p4N/2N1k2n/R3P2P/7b/3Q2p1/b5K1

#2

8 + 7

15 British Chess Magazine 1892

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4+
      • 2.Qxd4#
    • 1...Bg4
      • 2.Sxg4#
    • 1...Bf5
      • 2.Rxf5#
    • 1...Sg3
      • 2.Qf4#
    • 1...Sf4
      • 2.Qxf4#
    • 1...Sg7
      • 2.Qf4#
  • Tries
    • 1.Re7+?
      • 1...Kf6
        • 2.Qg5#
      • 1...Be6
        • 2.Sd7#
        • 2.Sg4#
        • 2.Rxe6#
      • 1...Sxe7!
  • Keys
    • 1.Rf6!
      • 1...Bd4+
        • 2.Qxd4#
      • 1...Kxf6
        • 2.Qg5#
      • 1...Sxf6
        • 2.Sf7#
      • 1...Bb2
        • 2.Qxb2#
      • 1...Bc3
        • 2.Qxc3#
      • 1...Bg4
        • 2.Sxg4#
      • 1...Bf5
        • 2.Rxf5#
      • 1...Be6
        • 2.Rxe6#
      • 1...Bd7
        • 2.Sxd7#
      • 1...Sg3
        • 2.Qf4#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Sg7
        • 2.Qf4#
      • 1...Sb6
        • 2.Qd6#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sa7
        • 2.Qd6#
      • 1...Se7
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • B(a);CHECK,N_GUARD::QAB1(B),XB(a)
    • B(c);N_GUARD::S(G),XB(c)
    • B(c);N_GUARD::R1(H),XB(c)
    • S(e);N_GUARD::QAB1(B)
    • S(e);N_GUARD::QAB1(B),XS(e)
  • Tries
    • Try
      • R(H);CHECK
      • Vars
        • K(d);S_FLIGHT::QAB1(B)
      • Refutation
        • S(g);XR(H)
  • Actual
    • R(H);
    • Vars
      • B(a);CHECK,N_GUARD::QAB1(B),XB(a)
      • K(d);S_FLIGHT,XR(H)::QAB1(B)
      • S(e);SBLOCK,XR(H)::S(G)
      • B(a);N_GUARD::QAB(B),XB(a)
      • B(c);N_GUARD::S(G),XB(c)
      • B(c);N_GUARD::R1(H),XB(c)
      • B(c);N_GUARD::S(F),XB(c)
      • S(e);N_GUARD::QAB1(B)
      • S(e);N_GUARD::QAB1(B),XS(e)
      • S(g);N_GUARD::QAB1(B)
      • S(g);N_GUARD::QAB1(B),XS(g)
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