New answers tagged combinatorics
1
vote
Taking turns adding a number 1,2,3 to a 3x3 matrix without repeating numbers in the rows or columns: does the first player always win?
Without regard for strategy, considering cases:
Top 50 recent answers are included
Related Tags
combinatorics × 737mathematics × 452
logical-deduction × 87
optimization × 69
geometry × 58
chess × 46
no-computers × 39
checkerboard × 39
strategy × 32
probability × 32
tiling × 29
graph-theory × 28
calculation-puzzle × 26
reachability × 23
weighing × 21
algorithm × 19
polyomino × 18
computer-puzzle × 17
game × 17
visual × 15
number-theory × 14
primes × 12
dissection × 11
magic-square × 9
dice × 9