IR - Iron Rod
BD - Bronze Disc, 30BD, 25BD, 20BD, 15BD, 10BD numeric value indicates disc
ID - Iron Disc, 30ID, 25ID, 15ID, 10ID, numberic value indicates diameter.
CHC - Coin holder center position
C and G hole rows are for diagonal placement of iron rods on levels 1 - 9.
Example - Hole row A1 on level 5 will be designated as A1-5.
B1-6 hole rows are for parallel arrangement of iron rods on levels #1 - #9.
Example - Hole row B5 on level 8 will be designated as B5#8.
SL1, SL2 and SL3 are con holder slot positions available on any side on 9 levels.
Example - Slot position SL2 on level 6 will be designated as SL2-6.
Always begin iron rods placement from the highest available position.
C1 for corner placement or A1-6 for parallel arrangements.
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