MESON Chess Problem Database

Problem Display
PID: 167796 (8/8/ppNN4/2p5/8/k7/4p3/1Q1bK3 w - - 0 1)

Grande, Joralf

2nd Prize, Kristians und Sjakklubb, 1947

8/8/ppNN4/2p5/8/k7/4p3/1Q1bK3

#3

4 + 6

3713 Snap 2018
6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ka4
      • 2.Qa2#
    • 1...Ba4
      • 2.Sc4#
    • 1...c4
      • 2.Sxc4+
        • 2...Ka4
          • 3.Qb4#
  • Tries
    • 1.Sb5+?
      • 1...Ka4
        • 2.Sc3+
          • 2...Ka3
            • 3.Qa2#
        • 2.Sbd4
          • threat
            • 3.Qa2#
            • 3.Qa1#
          • 2...Ka3
            • 3.Qa1#
          • 2...cxd4
            • 3.Qb4#
          • 2...Bb3
            • 3.Qxb3#
        • 2.Qb2
          • threat
            • 3.Sc3#
          • 2...axb5
            • 3.Qa2#
      • 1...axb5!
    • 1.Qb2+?
      • 1...Ka4
        • 2.Qa2#
      • 1...Kxb2!
  • Keys
    • 1.Se4!
      • threat
        • 2.Sc3
          • threat
            • 3.Qa2#
          • 2...Bb3
            • 3.Qc1#
      • 1...Ka4
        • 2.Sc3+
          • 2...Ka3
            • 3.Qa2#
        • 2.Qb2
          • threat
            • 3.Sc3#
      • 1...Bc2
        • 2.Qa1+
          • 2...Kb3
            • 3.Sd2#
      • 1...Bb3
        • 2.Qc1+
          • 2...Ka2
            • 3.Sc3#
          • 2...Ka4
            • 3.Sc3#
      • 1...Ba4
        • 2.Sd2
          • threat
            • 3.Sc4#
            • 3.Qa1#
          • 2...Bxc6
            • 3.Qb3#
          • 2...Bb3
            • 3.Qxb3#
      • 1...c4
        • 2.Sc3
          • threat
            • 3.Qa2#
            • 3.Qb4#
          • 2...Bb3
            • 3.Qc1#

This anticipates 119365(1984)

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