MESON Chess Problem Database

Problem Display
PID: 51098 (2R4B/2np4/P2p2P1/K2kNN2/1P4nR/2p3PB/2Q1P3/8 w - - 0 1)

Mackenzie, Arthur Ford

Burnley Express, 1881

2R4B/2np4/P2p2P1/K2kNN2/1P4nR/2p3PB/2Q1P3/8

#2

13 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Sf2
      • 2.Se3#
      • 2.Se7#
      • 2.Qb3#
      • 2.Qa2#
    • 1...Sh2
      • 2.Se3#
      • 2.Se7#
      • 2.Qb3#
      • 2.Qa2#
    • 1...Se3
      • 2.Sxe3#
      • 2.Se7#
    • 1...Sxe5
      • 2.Se7#
    • 1...Sh6
      • 2.Se3#
      • 2.Se7#
      • 2.Qb3#
      • 2.Qa2#
    • 1...Se6
      • 2.Bg2#
      • 2.e4#
  • Tries
    • 1.Se3+?
      • 1...Kd4
        • 2.S5c4#
        • 2.S5xg4#
        • 2.Qd3#
      • 1...Sxe3
        • 2.Qd3#
        • 2.Qe4#
      • 1...Ke6!
    • 1.Se7+?
      • 1...Kd4
        • 2.Qd3#
      • 1...Ke6!
    • 1.Qd1+?
      • 1...Ke4
        • 2.Qd3#
      • 1...Ke6!
    • 1.Qe4+?
      • 1...Ke6
        • 2.Sxg4#
      • 1...Kxe4!
  • Keys
    • 1.Sd3!
      • 1...Kc4
        • 2.Se3#
        • 2.Qa2#
      • 1...Ke4
        • 2.Sf4#
      • 1...Kc6
        • 2.Se7#
      • 1...Ke6
        • 2.Sf4#
      • 1...Sxa6
        • 2.Sf4#
      • 1...Sf2
        • 2.Se7#
      • 1...Sh2
        • 2.Se7#
      • 1...Se3
        • 2.Se7#
      • 1...Se5
        • 2.Se7#
      • 1...Sf6
        • 2.Se7#
      • 1...Sh6
        • 2.Se7#
      • 1...Sb5
        • 2.Sf4#
      • 1...Se6
        • 2.Bg2#
      • 1...Sa8
        • 2.Sf4#
      • 1...Se8
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 13
    • REMOVED MATES = 0
  • Sets
    • S(b);XS(H)::S(I)
  • Tries
    • Try
      • S(I);CHECK
      • Refutation
        • K(c);P_SPINS(b),S_FLIGHT
    • Try
      • S(I);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINS(b)::QAR1(A)
      • Refutation
        • K(c);P_SPINS(b),S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);P_SPINS(b),S_FLIGHT::QAB1(A)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR(A)+S(H),XS(b)
      • Refutation
        • K(c);P_SPINS(b),S_FLIGHT,XQ(A)
  • Actual
    • S(H);
    • Vars
      • K(c);P_SPINS(b),S_FLIGHT::QAB(A)+S(H)
      • K(c);P_SPINP(a),P_SPINS(e),S_FLIGHT::S(I)
      • K(c);S_FLIGHT::S(H)
      • S(e);XP(J)::S(H)
      • S(b);::S(I)
      • S(e);::S(H)
      • S(e);SBLOCK::B(D)
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