MESON Chess Problem Database

Problem Display
PID: 177549 (KN6/8/Np1b4/k3p3/P7/1p2B3/3P2p1/Q4b2 w - - 0 1)

Grande, Joralf

1st HM., Postsjakk, 1970

KN6/8/Np1b4/k3p3/P7/1p2B3/3P2p1/Q4b2

#3

7 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bb5
      • 2.Bxb6+
        • 2...Kxb6
          • 3.a5#
    • 1...Bxa6
      • 2.Sc6#
    • 1...Ba3
      • 2.Qxa3
        • threat
          • 3.Qb4#
        • 2...Bxa6
          • 3.Sc6#
    • 1...Bc7
      • 2.Qc3+
        • 2...Kxa4
          • 3.Qb4#
    • 1...b5
      • 2.Bb6+
        • 2...Kxb6
          • 3.a5#
  • Tries
    • 1.Ka7?
      • threat
        • 2.Sc6#
        • 2.Bxb6#
      • 1...Ba3
        • 2.Qxa3
          • threat
            • 3.Sc6#
            • 3.Bxb6#
            • 3.Qb4#
      • 1...Bxb8+!
    • 1.Qc3+?
      • 1...Bb4
        • 2.Qxb4#
      • 1...Kxa4!
  • Keys
    • 1.d3!
      • threat
        • 2.Bd2+
          • 2...Bb4
            • 3.Bxb4#
      • 1...Bxb8
        • 2.Kb7
          • threat
            • 3.Bd2#
            • 3.Bxb6#
          • 2...b5
            • 3.Bb6#
      • 1...Ba3
        • 2.Qxa3
          • threat
            • 3.Bd2#
            • 3.Qb4#
      • 1...Bb4
        • 2.Sxb4
          • threat
            • 3.S4c6#
            • 3.S8c6#
          • 2...Kxb4
            • 3.Sc6#
      • 1...Bc5
        • 2.Bd2+
          • 2...Bb4
            • 3.Bxb4#
      • 1...Be7
        • 2.Bd2+
          • 2...Bb4
            • 3.Bxb4#
      • 1...Bf8
        • 2.Bd2+
          • 2...Bb4
            • 3.Bxb4#
      • 1...b5
        • 2.Bb6+
          • 2...Kxb6
            • 3.a5#

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