MESON Chess Problem Database

Problem Display
PID: 162474 (2b5/Kn1p1rp1/5pP1/3RP2p/3Nk3/1P2pR2/2P1p3/4Q1b1 w - - 0 1)

Challenger, Alfred Clement

The Observer, 1924

(First published on Sun Jun 29 1924)

2b5/Kn1p1rp1/5pP1/3RP2p/3Nk3/1P2pR2/2P1p3/4Q1b1

#3

9 + 11

15239 Valois Notebooks 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Sa5
      • 2.Rf4+
        • 2...Kxf4
          • 3.Qh4#
        • 2...Kxd5
          • 3.Qxa5#
    • 1...Sd8
      • 2.Rf4+
        • 2...Kxf4
          • 3.Qh4#
        • 2...Kxd5
          • 3.Qa5#
  • Tries
    • 1.Rf4+?
      • 1...Kxf4
        • 2.Qh4#
      • 1...Kxd5!
  • Keys
    • 1.Rf5!
      • threat
        • 2.exf6
          • threat
            • 3.Qh4#
          • 2...Bf2
            • 3.Qh1#
          • 2...Bh2
            • 3.Qh1#
          • 2...h4
            • 3.Qxh4#
        • 2.e6
          • threat
            • 3.Qh4#
          • 2...Bf2
            • 3.Qh1#
          • 2...Bh2
            • 3.Qh1#
          • 2...h4
            • 3.Qxh4#
      • 1...Kxd5
        • 2.exf6+
          • 2...Kxd4
            • 3.Qb4#
          • 2...Ke4
            • 3.Qh4#
          • 2...Kd6
            • 3.Qg3#
      • 1...fxe5
        • 2.Rdxe5+
          • 2...Kxd4
            • 3.Qb4#
            • 3.Qa1#
        • 2.Rfxe5+
          • 2...Kf4
            • 3.Qh4#
      • 1...Re7
        • 2.e6
          • threat
            • 3.Qh4#
          • 2...Bf2
            • 3.Qh1#
          • 2...Bh2
            • 3.Qh1#
          • 2...h4
            • 3.Qxh4#
      • 1...Sa5
        • 2.Rf4+
          • 2...Kxf4
            • 3.Qh4#
          • 2...Kxd5
            • 3.Qxa5#
      • 1...Sc5
        • 2.Qh4+
          • 2...Kxd5
            • 3.c4#
      • 1...Sd6
        • 2.Rxd6
          • threat
            • 3.Qh4#
          • 2...Bf2
            • 3.Qh1#
          • 2...Bh2
            • 3.Qh1#
          • 2...h4
            • 3.Qxh4#
        • 2.exd6
          • threat
            • 3.Qh4#
          • 2...Bf2
            • 3.Qh1#
          • 2...Bh2
            • 3.Qh1#
          • 2...h4
            • 3.Qxh4#
      • 1...Sd8
        • 2.Rf4+
          • 2...Kxf4
            • 3.Qh4#
          • 2...Kxd5
            • 3.Qa5#
      • 1...h4
        • 2.exf6
          • threat
            • 3.Qxh4#
          • 2...Bf2
            • 3.Qh1#
          • 2...Bh2
            • 3.Qh1#
          • 2...h3
            • 3.Qh4#
        • 2.e6
          • threat
            • 3.Qxh4#
          • 2...Bf2
            • 3.Qh1#
          • 2...Bh2
            • 3.Qh1#
          • 2...h3
            • 3.Qh4#
      • 1...d6
        • 2.Qh4+
          • 2...Kxd5
            • 3.e6#

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