MESON Chess Problem Database

Problem Display
PID: 180031 (k7/1N6/1R1pK3/8/2n5/4Q3/8/8 w - - 0 1)

Fossum, Andre Ferdinand

All Round Ty., 1963

k7/1N6/1R1pK3/8/2n5/4Q3/8/8

#3

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sd8?
      • 1...Ka7
        • 2.Sc6+
          • 2...Ka8
            • 3.Rb8#
        • 2.Rb7+
          • 2...Ka6
            • 3.Qa7#
          • 2...Ka8
            • 3.Qa7#
      • 1...Sxe3
        • 2.Sc6
          • threat
            • 3.Rb8#
      • 1...Sxb6
        • 2.Qxb6
          • 2...d5
            • 3.Qb7#
      • 1...Sb2
        • 2.Sc6
          • threat
            • 3.Rb8#
        • 2.Rxb2
          • 2...d5
            • 3.Qa3#
        • 2.Rb7
          • threat
            • 3.Qa7#
        • 2.Qa3+
          • 2...Sa4
            • 3.Qxa4#
      • 1...Sa5
        • 2.Qa3
          • threat
            • 3.Qxa5#
          • 2...Ka7
            • 3.Qxa5#
      • 1...d5!
  • Keys
    • 1.Sa5!
      • threat
        • 2.Sxc4
          • threat
            • 3.Qa3#
          • 2...Ka7
            • 3.Qa3#
      • 1...Ka7
        • 2.Sxc4
          • threat
            • 3.Qa3#
          • 2...Ka8
            • 3.Qa3#
        • 2.Sc6+
          • 2...Ka8
            • 3.Rb8#
        • 2.Rb7+
          • 2...Ka6
            • 3.Qa7#
          • 2...Ka8
            • 3.Qa7#
      • 1...Sxe3
        • 2.Sc6
          • threat
            • 3.Rb8#
      • 1...Sxa5
        • 2.Qa3
          • threat
            • 3.Qxa5#
          • 2...Ka7
            • 3.Qxa5#
      • 1...Sxb6
        • 2.Qxb6
          • 2...d5
            • 3.Qb7#
      • 1...Sb2
        • 2.Sc6
          • threat
            • 3.Rb8#
        • 2.Rb7
          • threat
            • 3.Qa7#
      • 1...Sd2
        • 2.Sc6
          • threat
            • 3.Rb8#
            • 3.Qa3#
        • 2.Rb7
          • threat
            • 3.Qa7#
      • 1...Sa3
        • 2.Sc6
          • threat
            • 3.Rb8#
            • 3.Qxa3#
        • 2.Qxa3
          • threat
            • 3.Sb3#
            • 3.Sc4#
            • 3.Sc6#
          • 2...Ka7
            • 3.Sc4#
      • 1...Se5
        • 2.Qa3
          • threat
            • 3.Sb3#
            • 3.Sc4#
            • 3.Sc6#
          • 2...Ka7
            • 3.Sc4#
          • 2...Sc4
            • 3.Sxc4#
          • 2...Sc6
            • 3.Sxc6#

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