MESON Chess Problem Database

Problem Display
PID: 258368 (5B2/5p2/6n1/2N1k3/1p2N3/1P4PB/2n2P2/R1Q4K w - - 0 1)

Fellows, Arthur G

English Mechanic and World of Science, 1891

(First published on Fri Nov 27 1891)

5B2/5p2/6n1/2N1k3/1p2N3/1P4PB/2n2P2/R1Q4K

#2

10 + 5

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Bd6+?
      • 1...Kd4
        • 2.Qd2#
        • 2.Qd1#
      • 1...Kd5!
    • 1.Qd2?
      • threat
        • 2.Bd6#
        • 2.Qd6#
      • 1...Sxf8
        • 2.Qd6#
        • 2.f4#
      • 1...Se7
        • 2.Qd6#
        • 2.f4#
      • 1...Sd4!
    • 1.Qf4+?
      • 1...Kd4
        • 2.Rd1#
        • 2.Qd6#
      • 1...Kd5
        • 2.Qd6#
      • 1...Sxf4!
    • 1.Qg5+?
      • 1...Kd4
        • 2.Rd1#
      • 1...f5!
    • 1.Qd1?
      • threat
        • 2.Bd6#
        • 2.Qd6#
      • 1...Sxf8
        • 2.Qd6#
        • 2.f4#
      • 1...Se7
        • 2.Qd6#
        • 2.f4#
      • 1...Sd4!
  • Keys
    • 1.Sf6!
      • 1...Kd4
        • 2.Qb2#
      • 1...Kxf6
        • 2.Sd7#
      • 1...Sxa1
        • 2.Qb2#
        • 2.Qxa1#
      • 1...Sxf8
        • 2.Qf4#
      • 1...Se7
        • 2.Qf4#
      • 1...Se1
        • 2.Qb2#
      • 1...Sa3
        • 2.Qb2#
      • 1...Se3
        • 2.Qb2#
      • 1...Sd4
        • 2.Scd7#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Sh4
        • 2.Qf4#
      • 1...Sh8
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(J);CHECK
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Refutation
        • S(a);
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);OGATE,P-FLIGHT::QAR1(B)
      • Refutation
        • S(d);XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);S_CUTP(e),S_FLIGHT::R(A)
      • Refutation
        • P(e);P_SPINP(e)
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Refutation
        • S(a);
  • Actual
    • S(H);
    • Vars
      • K(c);S_CUTS(a),S_FLIGHT::QAB(B)
      • K(c);N_GUARD,S_FLIGHT,XS(H)::S(I)
      • S(d);N_GUARD,XB(J)::QAB1(B)
      • S(d);N_GUARD::QAB1(B)
      • S(a);N_GUARD::QAB(B)
      • S(a);SBLOCK::S(I)
      • S(d);N_GUARD::QAB1(B),XS(d)
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