The Hole-in-One Records

 

The Explanation

 

These are the twelve Pentominoes:

 

Arrange some of them into a shape with a hole in the middle:
This is a hole with area 19 squares using 5 pentominoes.

What is the largest hole that can be made with 5 Pentominoes?

See our current school record for 5 Pentominoes.

The current Madras College School Records and the Scottish Records are:

2 Pentominoes (1)
Joanna Littlefair (S1) 12/12/97
3 Pentominoes (6)
Shona Macleod (S2) 11/10/96
4 Pentominoes (13)
Euan Foreman (S3) 17/11/98
5 Pentominoes (24)
Leah Wielpuetz (S3) 17/11/98
6 Pentominoes (34)
Stuart Geddes (S3) and Craig Davidson (S3) 3/6/99
7 Pentominoes (45)
Ross Barclay (S3)2/6/99
Scottish Record Holder: Andrew Fyfe (S2 Largs Academy) July 02 with 46
8 Pentominoes (61)
Liam Campbell (S2)2/6/99
9 Pentominoes
Madras College Record Holder: Chris Matthews (S1)17/9/01 with 74
Scottish Record Holder: Craig McLaughlin (S2 Largs Academy) 15/3/02 with 78
10 Pentominoes
Madras College Record Holder: Ross Craig (S2) 18/11/98 with 86
Scottish Record Holder: Robert West (S2 Largs Academy) July 02 with 94
11 Pentominoes
Madras College Record Holders: Andrew Montgomery (S3) and Lee Crosbie(S3) 11/3/02 with 103
Scottish Record Holders: Craig McLaughlin and Robert West (S2 Largs Academy) July 02 with 111
12 Pentominoes
Madras Record Holder: Steven Birrell (S1) 10/9/01 with 122
Scottish Record Holder: Robert West (S2 Largs Academy) July 02 with 128