MESON Chess Problem Database

Problem Display
PID: 178109 (6B1/3kp1P1/p7/B7/8/Q7/8/7K w - - 0 1)

Kerles, Josef

Narodni Politika, 1898

6B1/3kp1P1/p7/B7/8/Q7/8/7K

#2

5 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ke8
      • 2.Qa4#
  • Tries
    • 1.Qa2?
      • 1...Kc6
        • 2.Qd5#
      • 1...Kd6
        • 2.Qd5#
      • 1...Ke8
        • 2.Qa4#
      • 1...e5
        • 2.Qe6#
      • 1...e6
        • 2.Qxe6#
      • 1...Kc8!
    • 1.Qd3+?
      • 1...Kc6
        • 2.Qd5#
      • 1...Ke8
        • 2.Qd8#
      • 1...Kc8!
  • Keys
    • 1.Qb3!
      • 1...Kc6
        • 2.Qd5#
      • 1...Kd6
        • 2.Qd5#
      • 1...Kc8
        • 2.Be6#
      • 1...Ke8
        • 2.Qa4#
      • 1...e5
        • 2.Qe6#
      • 1...e6
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB(B)
  • Tries
    • Try
      • Q(B);
      • Vars
        • K(b);S_FLIGHT::QAB1(B)
        • K(b);P-FLIGHT::QAR1(B)
        • K(b);S_FLIGHT::QAB(B)
        • P(c);::QAB1(B)
        • P(c);::QAB1(B),XP(c)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(B)
        • K(b);OGATE,S_FLIGHT::QAR1(B)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(b);S_FLIGHT::QAB1(B)
      • K(b);P-FLIGHT::QAR1(B)
      • K(b);S_FLIGHT::B(E)
      • K(b);S_FLIGHT::QAB(B)
      • P(c);::QAB1(B)
      • P(c);::QAB1(B),XP(c)
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