MESON Chess Problem Database

Problem Display
PID: 93839 (4B3/8/4Q3/4p3/3pk3/6P1/2P4P/3K4 w - - 0 1)

Mazel, Eduard

Ceske listy sachove, 1896

4B3/8/4Q3/4p3/3pk3/6P1/2P4P/3K4

#2

6 + 3

15 British Chess Magazine 1910
6490 yacpdb 2009
5454 Near Snap 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qb3?
      • threat
        • 2.Bg6#
      • 1...d3
        • 2.Qxd3#
      • 1...Kf5!
    • 1.Qc4?
      • 1...Ke3
        • 2.Qe2#
      • 1...Kf3
        • 2.Qe2#
      • 1...Kf5!
    • 1.Qg4+?
      • 1...Ke3
        • 2.Qe2#
      • 1...Kd5!
    • 1.Qxe5+?
      • 1...Kf3
        • 2.Qe2#
      • 1...Kxe5!
    • 1.Qc6+?
      • 1...Kf5
        • 2.Qg6#
      • 1...Ke3!
  • Keys
    • 1.Qa6!
      • 1...Ke3
        • 2.Qe2#
      • 1...Kf3
        • 2.Qe2#
      • 1...Kd5
        • 2.Qc6#
      • 1...Kf5
        • 2.Qg6#
      • 1...d3
        • 2.Qxd3#

This anticipates 94518(1897)

FEATURES

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