4.Phương án 4:

16…..B4-5
17.Tg.1 M6/5
18.M6/5 Tg.1
19.M5.6 S5.4
20.M6/4 S4/5
21.M5/6 S5.4
22.M6.5 Tg-5
23.M5.3 Tg.1
24.S5.6 S4/5
25.P6-5 Tg-4
26.M3/4 Tg/1
27.M4/6 S5.4
28.P5.8 S4/5
29.V5/7 B5-4
30.M6.7 Tg.1
31.M7/8 B4-3
32.M8.7 B3-4
33.Tg-5 B8-7
34.M7/9 Tg/1
35.M9.8 Tg.1
36.M8.7 Tg/1
37.M7/5 S6.5
38.P5-9B7.1
39.P9/9
(đỏ thắng)