All Last Comebacks

It's important to know how big of a hand you need in order to make a comeback (gyakuten) in All Last. I've prepared tables of the common hand scores with what point difference they can overcome when you tsumo them. And of course, I have a tool for practicing them!

A brief note on the fu values, in case you aren't familiar. A 20 fu hand will be a pinfu tsumo. A 30 fu hand will be a non-pinfu tsumo in most cases. A 40 fu hand will usually be a toitoi tsumo, or when you have two closed triplets where one of them is a terminal or honor, and has the same score as a 20 fu han with one more han (eg, a 3 han 40 fu hand is the same as a 4 han 20 fu hand). A 25 fu hand will, of course, be chiitoitsu.

Tsumo as Non-Dealer

Hand Score	Non-dealer Difference	Dealer Difference
1 han 30 fu	1400	1600
2 han 20 fu	1900	2200
2 han 30 fu	2500	3000
3 han 20 fu	3400	4000
3 han 25 fu	4000	4800
3 han 30 fu	5000	6000
4 han 20 fu	6500	7800
4 han 25 fu	8000	9600
4 han 30 fu	9900	11800
Mangan	10000	12000
Haneman	15000	18000
Baiman	20000	24000
Sanbaiman	30000	36000
Yakuman	40000	48000

To use this table, look at the difference of points between you and the next placement. For example, if you're in fourth place, check the difference with third place. If you have 20,000 points, and they have 23,900 points, the difference is 3900.

Then, go down the Non-dealer Difference or Dealer Difference column, depending on whether they are the dealer or not, and stop when you get to a number equal to or greater than the difference. In our example, that would be 4000, which is 3 han 25 fu if they're not the dealer, or 3 han 20 fu if they are. If our hand isn't in a good position for chiitoitsu, then we'll have to do 3 han 30 fu if they aren't the dealer.

Note that it will only work when the scores are equal if you win the tie break. If the difference is exactly 4000, but the seating means you lose the tie break, then you'll need to go to the next tier. Unless there's a riichi stick or a honba on the table. Make sure to consider those! Each honba effectively reduces the difference by 400 points (you gain 300 more, they lose 100 more), and each riichi stick reduces it by 1000.

Here's the table for when you're dealer. Note that, in most rulesets, the dealer will always lose tie breaks, so you might want to consider these numbers 100 lower than as written. At least you get dealer repeats!

Tsumo as Dealer

Hand Score	Difference
1 han 30 fu	2000
2 han 20 fu	2800
2 han 30 fu	4000
3 han 20 fu	5200
3 han 25 fu	6400
3 han 30 fu	8000
4 han 20 fu	10400
4 han 25 fu	12800
4 han 30 fu	15600
Mangan	16000
Haneman	24000
Baiman	32000
Sanbaiman	48000
Yakuman	64000

For direct hits, if you're hitting the player in third, you'd need a score which is at least half of the difference between you two. If the difference is 5000, you'd need a 2500 ron at least, so a 2 han 30 ron (2600) works. If you're hitting a different player, you need to make up all of the difference, so a 3 han 30 ron (5200) in this case.

If you'd like to drill yourself on this, you can use the All Last Trainer in the Mahjong Efficiency Trainer and set the maximum fu to 30 or 40. Hands with more fu than that are pretty rare, anyway. Learning the higher fu counts could be useful if you find the chance to declare a closed kan, but for the most part, learning just these will be plenty.

Video Overview by Dasuke (22:48 to 31:00)