The text mentions "магические квадраты (сумма чисел по вертикали должна быть одинаковой)". Analyze the provided grids and determine if any completed columns sum to the same value.

Analysis of Grids:

The problem states that in "magic squares", the sum of numbers in each vertical column should be the same.

Grid 1:

• Column 1: 101 + 108 + 103 = 312
• Column 2: (empty) + 100 + (empty)
• Column 3: (empty) + (empty) + (empty)

This grid is incomplete, so we cannot verify if it's a magic square or determine a consistent column sum.

Grid 2:

• Column 1: 208 + 205 + 204 = 617
• Column 2: (empty) + (empty) + 202
• Column 3: (empty) + (empty) + (empty)

This grid is also incomplete, and the first column sum is 617. We cannot confirm if it's a magic square.

Grid 3:

• Column 1: 200 + (empty) + (empty)
• Column 2: 700 + 500 + 800 = 2000
• Column 3: (empty) + (empty) + (empty)

This grid is incomplete. The sum of the second column is 2000.

Grid 4:

• Column 1: (empty) + (empty) + (empty)
• Column 2: 450 + 15 + 50 = 515
• Column 3: 400 + (empty) + (empty)

This grid is incomplete. The sum of the second column is 515.

Conclusion:

None of the provided grids are fully completed, and therefore, it is not possible to definitively confirm if any of them are "magic squares" by verifying that all vertical columns sum to the same value.