MESON Chess Problem Database

Problem Display
PID: 258401 (2R2N1B/2bQ4/8/3pp3/2Nk1P2/1P1p2RK/8/1B6 w - - 0 1)

Fellows, Arthur G

English Mechanic and World of Science, 1892

(First published on Fri Jul 22 1892)

2R2N1B/2bQ4/8/3pp3/2Nk1P2/1P1p2RK/8/1B6

#2

10 + 5

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...d2
      • 2.Se6#
  • Tries
    • 1.Se6+?
      • 1...Ke4
        • 2.Bxd3#
        • 2.Qh7#
      • 1...Kc3!
    • 1.Qxc7?
      • threat
        • 2.Qxe5#
      • 1...Ke4
        • 2.Qxe5#
      • 1...Kc3!
  • Keys
    • 1.Qa4!
      • 1...Kc3
        • 2.Rxd3#
      • 1...Ke4
        • 2.Sd6#
      • 1...Kc5
        • 2.Se6#
      • 1...dxc4
        • 2.Qxc4#
      • 1...Ba5
        • 2.Sxa5#
      • 1...Bb6
        • 2.Sb2#
        • 2.Sd2#
        • 2.Sa3#
        • 2.Se3#
        • 2.Sa5#
        • 2.Sxe5#
        • 2.Sxb6#
        • 2.Sd6#
      • 1...Bd6
        • 2.Sxd6#
      • 1...Bb8
        • 2.Sb2#
        • 2.Sd2#
        • 2.Sa3#
        • 2.Se3#
        • 2.Sa5#
        • 2.Sxe5#
        • 2.Sb6#
        • 2.Sd6#
      • 1...Bd8
        • 2.Sb2#
        • 2.Sd2#
        • 2.Sa3#
        • 2.Se3#
        • 2.Sa5#
        • 2.Sxe5#
        • 2.Sb6#
        • 2.Sd6#
      • 1...d2
        • 2.Se6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • P(a);::S(I)
  • Tries
    • Try
      • S(I);CHECK
      • Refutation
        • K(b);N_SPINP(c),P_SPINP(a),S_FLIGHT
    • Try
      • Q(G);N_PINP(c),P_PINP(d),XB(e)
      • Threat
        • QAB1(G),XP(d)
      • Vars
        • K(b);N_SPINP(d),P-FLIGHT,P_SPINP(a)::QAR1(G),XP(d)
      • Refutation
        • K(b);N_SPINP(d),P_SPINP(a),S_FLIGHT
  • Actual
    • Q(G);N_PINP(c),P_PINP(d)
    • Vars
      • K(b);N_GUARD,N_SPINP(d),P_SPINP(a),S_FLIGHT::R1(C),XP(a)
      • K(b);N_GUARD,N_SPINP(d),P-FLIGHT,P_SPINP(a)::QAR(G)+S(E),DCHECK
      • K(b);N_GUARD,N_SPINP(d),P_SPINB(e),S_FLIGHT::S(I)
      • P(c);N_SPINP(d),OGATE,P_SPINP(c),XS(E)::QAR1(G),XP(c)
      • B(e);::QAR(G)+S(E),XB(e)
      • P(a);::S(I)
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