Checkmate 07-11-2003

Bruno's Chess Problem: 07/11/2003

L.Kubbel, 1st Pr., Escacs a Catalunya, 1933

Mate in 4(***)
chess problem diagram

White to play

Tip:

Solutions to the chess problem of the day will be made available the following day.

1. Qf3! ... 2. Bxc3+ Kxc4 3. Be2+ Kc5 4. Qc6#
  1... Nd8 2. Be2 ... 3. Qf4#
     2... Nd5 3. Qxd5+ Ke3 4. Qe5#
     2... Nxc4 3. Qf4+ Kd5 4. Bxc4#
     2... Ke5 3. Bd3 ... 4. Qe4#
        3... Ke6 4. Qf5#
  1... Nd5 2. Qxd5+ Ke3 3. Bxc3 ... 4. Qd4#
        3... Kf4 4. Qe5#
  1... Kxc4 2. Qe4+ Kxb5 3. Be2+ Nc4 4. Qxb7#
  1... Ke5 2. Bc2 ... 3. Qe4#
     2... Nd6 3. Qe3+ Ne4 4. Qxe4#
     2... Nc5 3. Bxc5 ... 4. Qf5#
  1... Na5 2. Bc2 ... 3. Qe4#
     2... Kxc4 3. Bd3+
        3... Kxb4 4. Qf8#
        3... Kd4 4. Qe4#