MESON Chess Problem Database

Problem Display
PID: 226143 (1b6/k1p1p3/ppB5/6Q1/1R6/3K4/8/8 w - - 0 1)

Kozinka, Jan

Praca, 1956

1b6/k1p1p3/ppB5/6Q1/1R6/3K4/8/8

#3

4 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...b5
      • 2.Qe3#
      • 2.Qg1#
      • 2.Qc5#
  • Tries
    • 1.Rxb6?
      • threat
        • 2.Rb1
          • threat
            • 3.Qe3#
            • 3.Qg1#
            • 3.Qc5#
          • 2...a5
            • 3.Qxa5#
        • 2.Rb2
          • threat
            • 3.Qe3#
            • 3.Qg1#
            • 3.Qc5#
          • 2...a5
            • 3.Qxa5#
        • 2.Rb3
          • threat
            • 3.Qe3#
            • 3.Qg1#
            • 3.Qc5#
          • 2...a5
            • 3.Qxa5#
        • 2.Rb4
          • threat
            • 3.Qe3#
            • 3.Qg1#
            • 3.Qc5#
          • 2...a5
            • 3.Qxa5#
        • 2.Rb7+
          • 2...Ka8
            • 3.Rxc7#
      • 1...cxb6
        • 2.Qxe7+
          • 2...Bc7
            • 3.Qxc7#
      • 1...e5
        • 2.Rb7+
          • 2...Ka8
            • 3.Rxc7#
      • 1...Kxb6!
    • 1.Qxe7?
      • 1...b5
        • 2.Qc5#
        • 2.Qe3#
      • 1...a5!
    • 1.Qb5?
      • threat
        • 2.Qxa6+
          • 2...Kxa6
            • 3.Ra4#
      • 1...axb5
        • 2.Rb1
          • threat
            • 3.Ra1#
          • 2...Ka6
            • 3.Ra1#
        • 2.Rb2
          • threat
            • 3.Ra2#
          • 2...Ka6
            • 3.Ra2#
      • 1...a5!
  • Keys
    • 1.Qa5!
      • threat
        • 2.Qxa6+
          • 2...Kxa6
            • 3.Ra4#
      • 1...bxa5
        • 2.Rb7+
          • 2...Ka8
            • 3.Rxc7#
      • 1...b5
        • 2.Ra4
          • threat
            • 3.Qxa6#
          • 2...bxa4
            • 3.Qc5#

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