Fast bowlers Kemar Roach and Jayden Seales took the West Indies to the brink of victory in the first Test in Antigua Monday, taking three wickets each to reduce Bangladesh to 109/7 in their second innings when bad light put an end to the fourth day.
Chasing 334 to win the match, Bangladesh will go into Tuesday's final day still 225 runs short of victory and with just three wickets in hand.
After bowling the home side out for 152 in their second innings, Bangladesh made the worst possible start to the chase when Roach bowled opener Zakir Hasan off an inside edge with the fifth ball of the innings.
Fellow opener Mahmudul Hasan Joy then edged Seales to Justin Greaves at third slip before Roach snapped Shahadat Hossain and Mominul Haque in quick succession to leave Bangladesh reeling at 23/4.
Liton Das led a mini-recovery but when he fell to Shamar Joseph, who saw four catches go down off his bowling, for 22, the visitors were in deep trouble at 59/5.
Captain Mehedi Hasan Miraz went on the counter-attack with a 46-ball 45 before edging Seales to Joshua Da Silva behind the stumps.
In his next over, Seales bowled Taijul Islam to end the day with 3/31.
Roach had 3/20.
Earlier, Bangladesh threw an early surprise by declaring the first innings on their overnight total of 269/9, even though they still trailed by 181 runs.
The West Indies responded by going after quick runs to build on their lead.
It did not go quite according to plan as they were skittled for 152, Alick Athanaze top-scoring with 42.
Bangladesh bowlers, led by right-arm pacer Taskin Ahmed, initiated breakthroughs at regular intervals with the home side going into the lunch break on 61 losing three wickets.
They then lost their remaining seven wickets in the post-lunch session for the addition of 91 runs.
Opening bowler Taskin was the man to profit, his 6/64 giving him a first-ever five-wicket haul in Test cricket.
The 29-year old, playing in his 16th Test, finished with eight wickets in the game after claiming two in the first innings.
Asked to bat first, the Caribbean side earlier posted 450 for nine declared.
1ST TEST, DAY 4
West Indies 450/9d & 152 in 46.1 overs (Athanaze 42, Taskin 6/64) lead Bangladesh 269/9d & 109/7 in 31 overs (Miraz 45, Roach 3/20) by 225 runs
