MESON Chess Problem Database

Problem Display
PID: 149001 (nr1Nb3/Qnk1P1R1/3N4/P7/B1P5/8/5B2/2K5 w - - 0 1)

Fellows, Herbert N

The Field, 1902

(First published on Sat Oct 25 1902)

nr1Nb3/Qnk1P1R1/3N4/P7/B1P5/8/5B2/2K5

#2

10 + 5

15 British Chess Magazine 1903
15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd6
      • 2.Bg3#
    • 1...Rc8
      • 2.Sxe8#
    • 1...Sb6
      • 2.Qxb6#
  • Tries
    • 1.Bb6+?
      • 1...Sxb6
        • 2.Qxb6#
      • 1...Kxd6!
    • 1.Bxe8?
      • 1...Kxd6
        • 2.Bg3#
      • 1...Rc8
        • 2.Sb5#
      • 1...Sb6
        • 2.Qxb6#
      • 1...Rxd8!
    • 1.Qc5+?
      • 1...Bc6
        • 2.Qxc6#
        • 2.e8Q#
        • 2.e8R#
      • 1...Sxc5!
  • Keys
    • 1.Bh4!
      • 1...Kxd6
        • 2.Bg3#
      • 1...Rxd8
        • 2.exd8Q#
      • 1...Bxa4
        • 2.e8S#
      • 1...Bb5
        • 2.e8S#
      • 1...Bc6
        • 2.e8S#
      • 1...Rc8
        • 2.Sxe8#
      • 1...Bh5
        • 2.e8S#
      • 1...Bg6
        • 2.e8S#
      • 1...Bd7
        • 2.e8S#
      • 1...Bf7
        • 2.e8S#
      • 1...Sb6
        • 2.Qxb6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINS(a),OGATEB,S_FLIGHT,XS(F)::B(B)
    • R(d);SBLOCK::S(F),XB(e)
    • S(c);N_GUARD::QAB1(G),XS(c)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • S(c);OGATE,XB(B)::QAB1(G),XS(c)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT,XS(F)
    • Try
      • B(C);XB(e)
      • Vars
        • K(b);N_SPINS(a),OGATEB,S_FLIGHT,XS(F)::B(B)
        • R(d);SBLOCK::S(F)
        • S(c);N_GUARD::QAB1(G),XS(c)
      • Refutation
        • R(d);XS(J)
    • Try
      • Q(G);CHECK,N_PINS(a)
      • Refutation
        • S(a);XQ(G)
  • Actual
    • B(B);
    • Vars
      • K(b);N_SPINS(a),OGATEB,S_FLIGHT,XS(F)::B(B)
      • R(d);OGATE,XS(J)::PXR(d)=Q
      • B(e);OGATE,XB(C)::P=S
      • B(e);OGATE::P=S
      • R(d);SBLOCK::S(F),XB(e)
      • S(c);N_GUARD::QAB1(G),XS(c)
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