MESON Chess Problem Database

Problem Display
PID: 142157 (8/2p2p2/1P1kPB2/8/2P3P1/2nK1Q2/8/8 w - - 0 1)

Bolus, Andrew

British Chess Magazine, 1890

8/2p2p2/1P1kPB2/8/2P3P1/2nK1Q2/8/8

#2

7 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe6
      • 2.Qc6#
    • 1...Sb1
      • 2.Qd5#
    • 1...Sd1
      • 2.Qd5#
    • 1...Sa2
      • 2.Qd5#
    • 1...Se2
      • 2.Qd5#
    • 1...Sa4
      • 2.Qd5#
    • 1...Sb5
      • 2.Qd5#
    • 1...Sd5
      • 2.Qxd5#
  • Tries
    • 1.c5+?
      • 1...Kxe6
        • 2.Qc6#
        • 2.Qf5#
      • 1...Kxc5!
  • Keys
    • 1.Qb7!
      • 1...Kc5
        • 2.Be7#
      • 1...Kxe6
        • 2.Qc6#
      • 1...cxb6
        • 2.Qxb6#
      • 1...fxe6
        • 2.Qxc7#
      • 1...Sb1
        • 2.Qd5#
      • 1...Sd1
        • 2.Qd5#
      • 1...Sa2
        • 2.Qd5#
      • 1...Se2
        • 2.Qd5#
      • 1...Sa4
        • 2.Qd5#
      • 1...Se4
        • 2.Qd5#
      • 1...Sb5
        • 2.Qd5#
      • 1...Sd5
        • 2.Qxd5#
      • 1...c5
        • 2.Qd7#
      • 1...c6
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT,XP(F)::QAR2(B)
    • S(a);N_GUARD::QAR1(B)
    • S(a);N_GUARD::QAR1(B),XS(a)
  • Tries
    • Try
      • P(C);CHECK
      • Refutation
        • K(b);S_FLIGHT,XP(C)
  • Actual
    • Q(B);
    • Vars
      • K(b);S_FLIGHT::B(G)
      • K(b);P-FLIGHT,XP(F)::QAR2(B)
      • P(c);OGATE,XP(E)::QAR2(B),XP(c)
      • P(d);SBLOCK,XP(F)::QAB1(B),XP(c)
      • S(a);N_GUARD::QAR1(B)
      • S(a);N_GUARD::QAR1(B),XS(a)
      • P(c);OGATE,SBLOCK::QAR1(B)
      • P(c);OGATE,SBLOCK::QAB1(B)
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