3 files changed, 59 insertions, 26 deletions

diff --git a/docs/GAMES.md b/docs/GAMES.md
index 2b8adf5..364cfef 100644
--- a/docs/GAMES.md
+++ b/docs/GAMES.md
@@ -79,19 +79,32 @@ Q       forfeit an active hand (bet is lost), or leave when no hand is active
 ## Roulette
 
 - European wheel: 0-36, one green zero.
-- Bets: red, black, even, odd, and straight numbers.
-- Bets can be split across all of those; every winning bet is added together.
-- Straight pays 35:1 (36x returned), outside bets pay 1:1 (2x returned).
-- 0 loses all outside bets. RTP is 36/37 = 97.30%.
-- Numbers are color-coded in the TUI: red numbers are red, 0 is green, and
-  black numbers stay at the default terminal color. Bet amounts and balances
-  are not colored.
+- The felt is drawn in full and bet with a cursor. Over the numbers the cursor
+  sits on a *lattice point*, the way a chip sits between numbers on a real
+  felt: an inner point covers four numbers (corner), an edge point covers two
+  (split), and an outer corner is a straight.
+- Bet types and returns (per unit staked, stake included):
+
+  | Bet | Covers | Return |
+  | --- | --- | --- |
+  | Straight | one number | 36x |
+  | Split | two adjacent numbers | 18x |
+  | Corner | four numbers | 9x |
+  | Dozen | 1-12, 13-24, 25-36 | 3x |
+  | Column | 1,4,...,34 / 2,5,...,35 / 3,6,...,36 | 3x |
+  | Outside | 1-18, 19-36, EVEN, ODD, RED, BLACK | 2x |
+
+- 0 loses every outside bet, both dozens and every column. It pays a straight,
+  and split/corner bets containing 0 are not offered.
+- Every chip is settled independently and added together. RTP is 36/37 =
+  97.30% because every bet uses the same European odds.
+- Bet amounts and balances are not colored in the TUI.
 
 Client controls inside roulette:
 
 ```
-R / B / E / O   add the current chip to red/black/even/odd
-digits + Enter  add the current chip to that number
+arrows          move the cursor over the felt, including between numbers
+ENTER           place the current chip on the cursor
 C               clear all bets
 + or = / -      change the chip size
 SPACE           spin
@@ -125,7 +138,7 @@ plays (
 {"reels":"CCCCLLCLODGSDGS","win_type":"win","win_lines":"1","win_cells":"0,3,6"}
 
 // roulette
-{"number":"17","color":"black","bets":"{\"red\":10,\"black\":10,\"even\":10,\"odd\":10,\"numbers\":[{\"number\":17,\"amount\":5}]}"}
+{"number":"17","color":"black","bets":"{\"chips\":[{\"target\":{\"bet\":\"outside\",\"kind\":\"red\"},\"amount\":10}]}"}
 
 // blackjack
 {"player":["10S","6H","5D"],"dealer":["9D","8C"],"player_total":21,"dealer_total":17,"bet":10,"result":"win","winnings":20}
@@ -174,13 +187,21 @@ PLAY_START slots <bet>
 GAME_RESULT <session> <winnings> <bet> <balance> <reels> <win_type> <win_lines> <win_cells>
 ```
 
-Roulette adds a compact bets payload and a roulette-specific result:
+Roulette sends the chips and gets a roulette-specific result:
 
 ```
 PLAY_START roulette <total> <bets-json>
 ROULETTE_RESULT <session> <winnings> <bet> <balance> <number> <color> <bets-json>
 ```
 
+`bets-json` is `{"chips":[{"target":{...},"amount":N}]}`. A target is one of
+`{"bet":"straight","number":17}`, `{"bet":"split","a":1,"b":2}`,
+`{"bet":"corner","numbers":[1,2,4,5]}`, `{"bet":"dozen","index":1}`,
+`{"bet":"column","index":0}` or
+`{"bet":"outside","kind":"red"}` (`low`, `high`, `even`, `odd`, `red`,
+`black`). The server rejects unknown, out-of-range or duplicate-number
+targets, and requires the total to equal the sum of the chips.
+
 Blackjack is a multi-step session:
 
 ```
diff --git a/docs/SERVER_SETUP.md b/docs/SERVER_SETUP.md
index 37d55b1..9eac7a7 100644
--- a/docs/SERVER_SETUP.md
+++ b/docs/SERVER_SETUP.md
@@ -79,9 +79,8 @@ last address for that key is forgotten.
 
 The server creates `server.db` in the current directory on first use. It holds
 users, balances, and the per-game `plays` audit. The client keeps its own
-`client.db` for host fingerprints and stored credentials. Databases from before
-the fingerprint-keyed credentials are migrated on startup; rows whose host was
-already forgotten cannot be re-keyed and require one fresh login.
+`client.db` for host fingerprints and stored credentials. There are no schema
+migrations while the app is in alpha: a schema change means deleting both files.
 
 During development, delete both files to reset users, balances, history, and
 trust:
diff --git a/docs/TESTING.md b/docs/TESTING.md
index fe302a9..7ec5b60 100644
--- a/docs/TESTING.md
+++ b/docs/TESTING.md
@@ -16,7 +16,7 @@ shared global database. Each test owns its state.
 | `tests/blackjack.rs` | Card totals, naturals, hit/stand/double, dealer bust, S17, state parsing. |
 | `tests/crash.rs` | Multiplier curve, payout floor, crash-point distribution, house edge, cap. |
 | `tests/protocol.rs` | Newline buffering and timeout/error classification. |
-| `tests/roulette.rs` | European wheel, split-bet payouts, zero handling, result parser. |
+| `tests/roulette.rs` | Wheel, every bet type and payout, zero handling, cursor lattice, result parser. |
 | `tests/server_core.rs` | Handler, bcrypt migration, SQL injection, transaction rollback, `plays` audit, sessions. |
 | `tests/server_setup.rs` | `--init` identity generation, PKCS#12 loadability, overwrite refusal. |
 | `tests/slots.rs` | Server slots payout rules and overflow handling. |
@@ -71,18 +71,31 @@ Use an 80-column terminal because several output lines are width-sensitive.
 
 ## Manual roulette checklist
 
-1. `play roulette` shows the balance, chip size, empty bets, and controls.
-2. `R`/`B`/`E`/`O` add one chip; digits + Enter add a number; `C` clears;
-   `+`/`=`/`-` change the chip size.
-3. Space scrolls the wheel under a fixed ball marker and ends on the winning
+1. `play roulette` draws the full felt: 0, the 3x12 numbers, dozens, columns,
+   and the six outside cells, with the cursor on number 1.
+2. Arrows move the cursor. On the numbers the highlighted cells show the bet:
+   one number (straight), two (split), four (corner). Down leaves the felt into
+   the dozens, then columns, then outside; Up walks back.
+3. ENTER places the chip where the cursor is; `C` clears; `+`/`=`/`-` change the
+   chip size. The bets line lists every chip and the total.
+4. Space scrolls the wheel under a fixed ball marker and ends on the winning
    number.
-4. Check a split result:
-   - `17 black odd`: black+odd pay, red+even lose, straight 17 pays 36x.
-   - `0`: all outside bets lose; a straight 0 pays 36x.
-5. Numbers are color-coded: red numbers red, 0 green, black default. Check the
-   bets line, the rolling strip, and the winning number.
-6. The result board shows the winning number/color/parity, the payout, and the
-   new balance. The next spin reuses the placed bets.
+5. Check the payouts:
+   - a straight pays 36x, a split 18x, a corner 9x;
+   - a dozen or column pays 3x;
+   - an outside bet pays 2x;
+   - `0` loses every outside bet, both dozens and every column, and pays a
+     straight 0.
+6. The result line names the number, color and parity, the total returned and
+   the profit. The next spin reuses the placed chips.
+
+## Manual terminal size check
+
+1. Start the client in a terminal smaller than 80x24: it must print
+   `zagan.bet needs a terminal of at least 80x24 cells` and exit without
+   switching to the alternate screen or raw mode.
+2. At 80x24 every game board (slots 10 lines, roulette 12, blackjack 6, crash 6)
+   must fit without wrapping.
 
 ## Manual blackjack checklist