GoneProblem2/Solutions

Solution 1  

prevents a White point in the corner. holds the corner to zero. threatens to play at a, but takes away that move and prevents the eye. takes another corner.

After each player has two more moves left. White to play loses.

Solution 2  

carries a large threat, which counters, as above. is the winning move, after which there are a number of variations. Through the same position is reached as in Solution 1.