The last couple of weeks I have been busy playing connect four. I even created a small opening book for it. This is how to read it:
254f = The first player puts a dish in column 2, the second player in column 5, the first player in column 4. If both players continue with perfect play, the first player will win.
f = first player wins
s = second player wins
d = draw
1s 2s 3d 4f
11f 12s 13s 14s 15f 16s 17f
21f 22d 23s 24d 25f 26f 27f
31f 32f 33d 34d 35d 36d 37f
41f 42f 43f 44f
111s 112d 113d 114f 115s 116f 117s
121s 122s 123s 124s 125s 126s 127s
131s 132s 133s 134s 135s 136s 137s
141s 142s 143s 144s 145s 146s 147s
151s 152s 153s 154f 155s 156s 157s
161s 162s 163s 164s 165s 166s 167s
171s 172s 173s 174f 175s 176s 177s
211d 212f 213d 214s 215f 216s 217s
221s 222s 223s 224s 225d 226s 227s
231s 232s 233s 234s 235s 236s 237s
241s 242d 243s 244d 245s 246s 247s
251s 252s 253s 254f 255s 256s 257s
261s 262f 263d 264f 265f 266d 267s
271s 272f 273d 274f 275d 276s 277s
311d 312d 313d 314f 315d 316d 317s
321s 322d 323s 324s 325d 326f 327s
331s 332d 333s 334d 335s 336s 337s
341s 342s 343d 344d 345s 346s 347s
351s 352s 353d 354s 355d 356s 357s
361s 362d 363d 364d 365d 366d 367s
371s 372d 373f 374f 375d 376f 377s
411d 412s 413f 414f 415f 416f 417f
421s 422f 423s 424d 425d 426f 427s
431s 432s 433d 434d 435s 436f 437f
441s 442s 443s 444f
Due to the symmetry of the game, only moves up to 4/44/444 are listed.