RENBAN is MIKIRI's number-order tapping game. Numbers from 1 upward are scattered across a grid, and you tap them in order — 1, 2, 3… — before the time bar runs out. A wrong tap costs one second.
The format is based on the Schulte table, a classic grid used for visual search and attention practice. MIKIRI adds a twist: from round 13 the unpressed numbers start moving after every tap, first by swapping two of them and later by reshuffling all of them. Memorising the grid stops working, so you have to search again every time.
▶ RENBAN — Play free nowRound 1 is a 3×3 grid of 9 numbers with 1.4 seconds per number. Grids grow to 12, 16, 20, 25, 30 and 36 numbers. Round 13 (elite) turns on swapping, round 22 turns on full reshuffling, and round 28 (beyond human) uses 36 numbers. Each round changes only one thing: the count, the time per number, or the shuffle.
The time in RENBAN goes into finding the next number, not tapping it. The bigger the grid, the larger the search area and the longer each step takes.
The shuffling from round 13 exists to change how you search. Without it, you partly remember where numbers are on later passes. Once they move, memory stops helping and every search starts from zero.
Scanning from one corner. Reading the grid from top-left wastes time when the number is bottom-right. Rest your gaze in the centre and take in the surroundings.
Searching only after tapping. Start looking for the next number while your finger is still on the current one, and the waiting disappears.
Rushing into wrong taps. Each one costs a second. Accuracy first usually leaves more time on the clock.
A smaller screen means smaller cells and more mis-taps. Phone and tablet, one hand and two hands give different results, so compare under the same conditions.
The Schulte table is sometimes presented as attention training, but your score here shows search speed inside this game. It is not an assessment of attention itself.