What Would You Discard? #4996710 (2-shanten)

Which tile do you discard? (maximize acceptance)

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東・ acceptance 40tiles: 5筒 6筒 7筒 8筒 9筒 3索 4索 5索 6索 7索 8索 9索

📖 Related reading

What to Discard: Five-Block Theory and Spotting Useless TilesBefore you count tile acceptance, decide which blocks to keep — the five-block framework. Block strength order and the discard order for isolated tiles.