MESON Chess Problem Database

Problem Display
PID: 175751 (8/p2B3p/P4B2/P6K/1k2P3/3PQ3/8/2N5 w - - 0 1)

Hulsen, Bernhard

Deutsches Wochenschach, 1898

8/p2B3p/P4B2/P6K/1k2P3/3PQ3/8/2N5

#2

9 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ka3
      • 2.Qc5#
  • Tries
    • 1.Kh6?
      • 1...Ka3
        • 2.Qc5#
      • 1...Kxa5!
    • 1.Bc3+?
      • 1...Ka3
        • 2.Qc5#
      • 1...Kxc3!
    • 1.Qd2+?
      • 1...Ka3
        • 2.Bb2#
        • 2.Be7#
        • 2.Qc3#
        • 2.Qb2#
      • 1...Kc5!
    • 1.Qd4+?
      • 1...Ka3
        • 2.Be7#
        • 2.Qb2#
        • 2.Qc3#
        • 2.Qc5#
        • 2.Qa4#
        • 2.Qd6#
      • 1...Kxa5!
    • 1.Qg5?
      • 1...Ka3
        • 2.Qc5#
      • 1...h6!
    • 1.Qb6+?
      • 1...Ka3
        • 2.Bb2#
        • 2.Be7#
        • 2.Qc5#
        • 2.Qb2#
        • 2.Qb3#
        • 2.Qd6#
      • 1...axb6!
    • 1.Qxa7?
      • 1...Ka3
        • 2.Qc5#
      • 1...Kxa5
        • 2.Bc3#
      • 1...h6!
    • 1.Qe1+?
      • 1...Ka3
        • 2.Qc3#
      • 1...Kc5!
  • Keys
    • 1.Qh6!
      • 1...Ka3
        • 2.Qf8#
      • 1...Kxa5
        • 2.Bc3#
      • 1...Kc5
        • 2.Qf8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB(C)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAB(C)
      • Refutation
        • K(a);S_FLIGHT,XP(E)
    • Try
      • B(H);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB(C)
      • Refutation
        • K(a);S_FLIGHT,XB(H)
    • Try
      • Q(C);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Refutation
        • K(a);S_FLIGHT,XP(E)
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAB(C)
      • Refutation
        • P(c);
    • Try
      • Q(C);CHECK
      • Refutation
        • P(b);XQ(C)
    • Try
      • Q(C);XP(b)
      • Vars
        • K(a);S_FLIGHT::QAB(C)
        • K(a);S_FLIGHT,XP(E)::B(H)
      • Refutation
        • P(c);
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(a);S_FLIGHT::QAB(C)
      • K(a);S_FLIGHT,XP(E)::B(H)
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