Position at A: 15-19

Position at B: 27-24

Position at C: 11-16

Position at D: 25-22 (24-20 better, but 25-22 sets trap. If Red then moves 14-18 as actually played, then White to 21-17, instead of 24-20 wins by play shown in Note F above.

Position at E: 14-18? (1-6 draws by. 1-6, 24-20, 3-7, 20x11, 7x16 27-24, 16-20, 22-17, 20x27 31x24, 14-18, 17-14, 10x17, 21x14, 18-23, 14-10, 6-9, 13x6, 2x9, 10-6)

Position at F: 24-20? 21-17!! Would win as shown in Note F above. But now Red has an even game by 18x25, 20x11, 25-29, 21-17, 12-16, 27-23, 1-5, 31-27, 5-9, 13x6, 2x9 17-13, 9-14 13-9, 14-17, 11-7, 10-14, 7-2, 15-18, 2-6, 18-22, 9-5, 22x31, 6-9, 31x24, 9x18, 19x26 28x12 etc.

Position at G: 10-14

Position at H: 16-20

Position at I: 25-29

Position at J: 24-27

Position at K: 13-6 WW