Problem Display
PID: 14368 (1K6/1Q3p2/4p3/5pp1/8/8/4N1pP/7k w - - 0 1)

Bull, Cecil Alfred Lucas

Natal Mercury, 1926

1K6/1Q3p2/4p3/5pp1/8/8/4N1pP/7k

#3

4 + 6


5371 Sonatas in Chess 1960
3713 Snap 2019

SOLUTION


  • SOUND
  • Sets
    • 1...f4
      • 2.Qb1+
        • 2...Kxh2
          • 3.Qh7#
        • 2...g1Q
          • 3.Qxg1#
        • 2...g1S
          • 3.Qxg1#
        • 2...g1B
          • 3.Qxg1#
        • 2...g1R
          • 3.Qxg1#
    • 1...g4
      • 2.Sf4
        • threat
          • 3.Qxg2#
        • 2...Kg1
          • 3.Qxg2#
        • 2...Kxh2
          • 3.Qxg2#
    • 1...e5
      • 2.Qb6
        • threat
          • 3.Qg1#
        • 2...Kxh2
          • 3.Qh6#
        • 2...g1Q
          • 3.Qxg1#
        • 2...g1S
          • 3.Qxg1#
        • 2...g1B
          • 3.Qxg1#
        • 2...g1R
          • 3.Qxg1#
    • 1...f6
      • 2.Qa7
        • threat
          • 3.Qg1#
        • 2...Kxh2
          • 3.Qh7#
        • 2...g1Q
          • 3.Qxg1#
        • 2...g1S
          • 3.Qxg1#
        • 2...g1B
          • 3.Qxg1#
        • 2...g1R
          • 3.Qxg1#
  • Tries
    • 1.Ka7?
      • 1...Kxh2
        • 2.Qb8+
          • 2...Kh1
            • 3.Qh8#
          • 2...Kh3
            • 3.Qg3#
          • 2...f4
            • 3.Qh8#
          • 2...e5
            • 3.Qh8#
      • 1...f4
        • 2.Qb1+
          • 2...Kxh2
            • 3.Qh7#
          • 2...g1Q+
            • 3.Qxg1#
          • 2...g1S
            • 3.Qxg1#
          • 2...g1B+
            • 3.Qxg1#
          • 2...g1R
            • 3.Qxg1#
      • 1...g4
        • 2.Sf4
          • threat
            • 3.Qxg2#
          • 2...Kg1
            • 3.Qxg2#
          • 2...Kxh2
            • 3.Qxg2#
      • 1...e5
        • 2.Qb6
          • threat
            • 3.Qg1#
          • 2...Kxh2
            • 3.Qh6#
          • 2...g1Q
            • 3.Qxg1#
          • 2...g1S
            • 3.Qxg1#
          • 2...g1B
            • 3.Qxg1#
          • 2...g1R
            • 3.Qxg1#
      • 1...f6!
    • 1.Kc8?
      • 1...f6
        • 2.Qa7
          • threat
            • 3.Qg1#
          • 2...Kxh2
            • 3.Qh7#
          • 2...g1Q
            • 3.Qxg1#
          • 2...g1S
            • 3.Qxg1#
          • 2...g1B
            • 3.Qxg1#
          • 2...g1R
            • 3.Qxg1#
      • 1...f4
        • 2.Qb1+
          • 2...Kxh2
            • 3.Qh7#
          • 2...g1Q
            • 3.Qxg1#
          • 2...g1S
            • 3.Qxg1#
          • 2...g1B
            • 3.Qxg1#
          • 2...g1R
            • 3.Qxg1#
      • 1...g4
        • 2.Sf4
          • threat
            • 3.Qxg2#
          • 2...Kg1
            • 3.Qxg2#
          • 2...Kxh2
            • 3.Qxg2#
      • 1...e5
        • 2.Qb6
          • threat
            • 3.Qg1#
          • 2...Kxh2
            • 3.Qh6#
          • 2...g1Q
            • 3.Qxg1#
          • 2...g1S
            • 3.Qxg1#
          • 2...g1B
            • 3.Qxg1#
          • 2...g1R
            • 3.Qxg1#
      • 1...Kxh2!
    • 1.Sf4?
      • threat
        • 2.Qxg2#
      • 1...Kg1
        • 2.Qxg2#
      • 1...Kxh2
        • 2.Qxg2#
      • 1...gxf4!
    • 1.Qb1+?
      • 1...g1Q
        • 2.Qxg1#
      • 1...g1S
        • 2.Qxg1#
      • 1...g1B
        • 2.Qxg1#
      • 1...g1R
        • 2.Qxg1#
      • 1...Kxh2!
    • 1.Qb6?
      • threat
        • 2.Qg1#
      • 1...g1Q
        • 2.Qxg1#
      • 1...g1S
        • 2.Qxg1#
      • 1...g1B
        • 2.Qxg1#
      • 1...g1R
        • 2.Qxg1#
      • 1...Kxh2!
    • 1.Qa7?
      • threat
        • 2.Qg1#
      • 1...g1Q
        • 2.Qxg1#
      • 1...g1S
        • 2.Qxg1#
      • 1...g1B
        • 2.Qxg1#
      • 1...g1R
        • 2.Qxg1#
      • 1...Kxh2!
  • Keys
    • 1.Ka8!
      • 1...Kxh2
        • 2.Qb8+
          • 2...Kh1
            • 3.Qh8#
          • 2...Kh3
            • 3.Qg3#
          • 2...f4
            • 3.Qh8#
          • 2...e5
            • 3.Qh8#
      • 1...f6
        • 2.Qa7
          • threat
            • 3.Qg1#
          • 2...Kxh2
            • 3.Qh7#
          • 2...g1Q
            • 3.Qxg1#
          • 2...g1S
            • 3.Qxg1#
          • 2...g1B
            • 3.Qxg1#
          • 2...g1R
            • 3.Qxg1#
      • 1...f4
        • 2.Qb1+
          • 2...Kxh2
            • 3.Qh7#
          • 2...g1Q
            • 3.Qxg1#
          • 2...g1S
            • 3.Qxg1#
          • 2...g1B
            • 3.Qxg1#
          • 2...g1R
            • 3.Qxg1#
      • 1...g4
        • 2.Sf4
          • threat
            • 3.Qxg2#
          • 2...Kg1
            • 3.Qxg2#
          • 2...Kxh2
            • 3.Qxg2#
      • 1...e5
        • 2.Qb6
          • threat
            • 3.Qg1#
          • 2...Kxh2
            • 3.Qh6#
          • 2...g1Q
            • 3.Qxg1#
          • 2...g1S
            • 3.Qxg1#
          • 2...g1B
            • 3.Qxg1#
          • 2...g1R
            • 3.Qxg1#

Anticipated by 190586(1913)

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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).