Problem Display
PID: 88978 (5B2/r1p5/p2p4/4k1K1/3NP3/1N6/B3P3/8 w - - 0 1)

Oppenheimer, Otto

American Chess Problemist, 1950

5B2/r1p5/p2p4/4k1K1/3NP3/1N6/B3P3/8

#3

7 + 5


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Tries
    • 1.Sf3+?
      • 1...Ke6
        • 2.Sc5#
      • 1...Kxe4!
    • 1.Sc6+?
      • 1...Ke6
        • 2.Sc5#
      • 1...Kxe4!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Bg7+
          • 2...Kxe4
            • 3.Sd2#
          • 2...Ke6
            • 3.Sc5#
      • 1...Kxe4
        • 2.Sd2+
          • 2...Ke5
            • 3.Bg7#
      • 1...Ke6
        • 2.Sc5+
          • 2...Ke5
            • 3.Bg7#
      • 1...d5
        • 2.Sc5
          • threat
            • 3.Bg7#
          • 2...c6
            • 3.Bd6#
      • 1...c5
        • 2.Bxd6+
          • 2...Kxe4
            • 3.Sd2#
            • 3.Sxc5#
          • 2...Ke6
            • 3.Sxc5#
      • 1...c6
        • 2.Bxd6+
          • 2...Kxe4
            • 3.Sd2#
            • 3.Sc5#
          • 2...Ke6
            • 3.Sc5#

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