THE NUMBERS OF 21 AUGUST
Day 20 · Friday, 21 August 2026 · 4 puzzles, the same for every player
BULLDOZER 💀💀
the boss of that day
the boss of that day
ROUND 1
9 · 6 · 1 · 4 → target 16
One possible solution
9 + 1 = 10
10 + 6 = 16
ROUND 2
4 · 8 · 9 · 15 → target 83
One possible solution
15 + 8 = 23
23 × 4 = 92
92 - 9 = 83
ROUND 3
50 · 2 · 7 · 1 · 4 · 5 → target 305
One possible solution
7 + 4 = 11
50 + 11 = 61
61 × 5 = 305
ROUND 4
75 · 100 · 10 · 7 · 6 · 4 → target 639
One possible solution
100 + 4 = 104
75 × 10 = 750
750 - 104 = 646
646 - 7 = 639
Abako Daily is a free mental maths game: six numbers, one target to hit exactly with the four operations, each number used once — the same idea as the numbers round on Countdown, or NYT Digits, but as a daily. Four draws a day, identical for everyone, with no timer, no account and no ads. The solutions above are one possible route — there is almost always more than one, and comparing yours is half the fun.