[Kevvyg1026]

We do not know the row location of the following cards: 517, 523, 528, 531, 532, 538, 541, 549, 552, 553, 556, 566, 569, 570, 576, 582, 583, 586, 587, 590, 592, 595, 597, or 598.

We do know:
a. 598 is above 595
b. 597, 592, 549 are in same row
c. 517 should be at end of row
d. 532 and 552 are in same row
e. 583 and 569 are in same row, while 583 and 523 are in same column
f. we know every card in columns 1 through 5 for all seven rows.

Very helpful finds would include:
a. cards to right of 561, 533, 542, 537, 543, 598, 595 or
b. above 533, 538, 579, 537
c. left of 517, 598, 595, 583, 597
d. below Northrup row but excluding Mantilla row. In other words, we already know 558 borders 593, 573/563, 536/578, 529/548, 572/524, and 574/539 but other combos would be helpful.