How is this different from Hand Analysis?

Hand Analysis is for a hand you already have: it shows shanten, ukeire, and waits. This page deals a new single-suit hand and grades the cut with the most winning tiles. A 14-tile answer can also open that hand in analysis.

Is there only one best discard?

No. Every discard with the same top tile count is accepted, and those rows are all green. The grader does not pick one tile among ties.

How does timed mode score?

Each correct cut adds the time left, counted in tenths of a second, so about ten points per second remaining. A wrong cut ends the round and shows the answer. Practice mode has no clock and only counts hands answered and correct.

Why 8 or 11 tiles instead of 14?

Fourteen tiles is the draw-and-discard shape. Eight and eleven use the same rule on a shorter hand, so the comparison is easier to count. Only a 14-tile answer can jump to Hand Analysis.

How is this different from one-shanten discard?

One-shanten discard starts one step before tenpai and asks which cut reaches the widest wait. Discard training starts from a tenpai shape plus a non-winning tile, and asks which cut keeps the widest wait. Both grade by winning-tile count.

Why do some discards look almost the same?

Overlapping shapes can leave waits that differ by only one or two tiles. The answer shows type count and tile count side by side. Only the maximum tile count is correct, so a near miss is still wrong.

Discard Training

Tiles Count

Level

After you start, copy the challenge link from Share above to have a friend answer this hand. How it works is on Friend Challenge.

Best

Score

Countdown

What this drill trains

Discard training asks which tile to cut. Hands are single-suit: a tenpai shape plus one tile that does not win. Correct cuts leave the most winning tiles, and ties all count. A cut that breaks tenpai scores zero.

How to practice

Choose 8, 11, or 14 tiles, then Simple or Hard, and start. Hard needs a wider base wait. The suit changes each hand.
Tap a tile or press 1-9, then submit. A hit moves on. A miss keeps the hand and lists every cut.
Timed mode is 30 seconds. Each hit adds the time left in tenths of a second. One miss ends the round and shows the answer.

How to read the answer

Green rows have the most tiles left, including ties. The badges show wait types and tile count. One tile short is still wrong. The steps are in Discard strategy

FAQ

Want another drill?

Return to the training hub for every mode, the learning path, and short guides.

Open training hub

Daily Challenge

Five tenpai + five discard puzzles—same set worldwide today.

Play today's set

Related guides

View all documentation