MESON Chess Problem Database

Problem Display
PID: 135085 (2r5/B2Q3b/3pB1pp/1nr1P3/R1Nk1P2/pP2p1N1/2Kp4/1n1R4 w - - 0 1)

Matthews, Robin CO

The Observer, 1950

(First published on Sun Mar 12 1950)

2r5/B2Q3b/3pB1pp/1nr1P3/R1Nk1P2/pP2p1N1/2Kp4/1n1R4

#3

11 + 12

14609 Mostly Three=Movers 1995
15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...S1c3
      • 2.Sxd2+
        • 2...Sxa4+
          • 3.Sc4#
    • 1...S5c3
      • 2.Sxd6+
        • 2...Sxa4+
          • 3.Sc4#
      • 2.Qxd6+
        • 2...Sd5
          • 3.Qxd5#
    • 1...Sxa7
      • 2.Qxd6+
        • 2...Rd5
          • 3.Qxd5#
    • 1...Sc7
      • 2.Qxd6+
        • 2...Sd5
          • 3.Qxd5#
    • 1...d5
      • 2.Qxd5#
    • 1...g5+
      • 2.Qxh7
        • threat
          • 3.Se2#
          • 3.Qd3#
          • 3.Qe4#
  • Tries
    • 1.Qb7?
      • threat
        • 2.Se2#
        • 2.Qe4#
        • 2.Qd5#
      • 1...g5+
        • 2.Qxh7
          • threat
            • 3.Se2#
            • 3.Qd3#
            • 3.Qe4#
      • 1...S1c3
        • 2.Se2+
          • 2...Sxe2
            • 3.Qd5#
        • 2.Sxd2+
          • 2...Sxa4+
            • 3.Sc4#
        • 2.Qe4+
          • 2...Sxe4
            • 3.Se2#
      • 1...S5c3
        • 2.Se2+
          • 2...Sxe2
            • 3.Qd5#
        • 2.Qe4+
          • 2...Sxe4
            • 3.Se2#
      • 1...Rc6!
    • 1.exd6?
      • threat
        • 2.Qg7#
      • 1...g5+
        • 2.Qxh7
          • threat
            • 3.Se2#
            • 3.Qd3#
            • 3.Qe4#
            • 3.Qg7#
      • 1...Sxa7
        • 2.Qg7+
          • 2...Re5
            • 3.Qxe5#
      • 1...Rc7
        • 2.dxc7+
          • 2...Sd6
            • 3.Qxd6#
            • 3.Qg7#
      • 1...Rf8
        • 2.Qg7+
          • 2...Rf6
            • 3.Qxf6#
      • 1...Rg8!
  • Keys
    • 1.Bh3!
      • threat
        • 2.Se2+
          • 2...Ke4
            • 3.Bg2#
          • 2...Kd5
            • 3.Bg2#
      • 1...g5+
        • 2.Qxh7
          • threat
            • 3.Qd3#
            • 3.Qe4#
          • 2...Kd5
            • 3.Qe4#
      • 1...Kd5
        • 2.Bg2+
          • 2...Kd4
            • 3.Se2#
      • 1...S1c3
        • 2.Sxd2+
          • 2...Kd5
            • 3.Be6#
          • 2...Sxa4+
            • 3.Sc4#
      • 1...S5c3
        • 2.Sxd6+
          • 2...Kd5
            • 3.Sc4#
            • 3.Sde4#
            • 3.Sb5#
            • 3.Sdf5#
            • 3.Sb7#
            • 3.Sf7#
            • 3.Sxc8#
            • 3.Se8#
            • 3.Be6#
          • 2...Sxa4+
            • 3.Sc4#
      • 1...e2
        • 2.Sxe2+
          • 2...Ke4
            • 3.Bg2#
          • 2...Kd5
            • 3.Bg2#
      • 1...d5
        • 2.Se2+
          • 2...Ke4
            • 3.Bg2#

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