Episode ZDS3

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Episode ZDS3 was broadcast on 20 June 2020, as a "numberists" special of ZoomDown.

The show featured two 9 round semi-finals in a special numbers showdown followed by a 15 round final.

The semi-final games featured four normal numbers games, four variant numbers games, and an "arithnundrum". The final featured eight normal numbers games, six variant numbers games, and an "arithnundrum".

The assistants were James Rowan and Fiona Titcombe.

The formats chosen for the variants were:

• SF1: Nasty, Spoilage, Duckdown, Hyper Nasty
• SF2: Hyper, Hyper Nasty, Nasty, Hyper
• Final:

Semi-final 1

Tim Down played Matthew Tassier, with Tim Down winning 67 – 57.

Rnd	Selection	Tim Down	Score	Matthew Tassier	Others	Max.
1	100 75 50 25 4 8 → 428	428 (50 + 4) × 8 − 100 ÷ 25	10 – 10	428 50 × 8 + 25 + 4 × 75 ÷ 100		10
2	2 5 6 7 6 9 → 254	887 6 × 7 × 6 + 2	20 – 20	887 (5 − 6 ÷ 6 ) × 7 × 9 + 2		20
3	Nasty 87 62 37 12 4 9 → 744	465 62 × 12	30 – 30	465 62 × 12		30
4	50 8 6 7 8 5 → 933	935 (8 + 6 + 5) × 50 − 8 - 7	37 – 37	935 (8 + 6 + 5) × 50 − 8 - 7	Best: 932 = (8 + 8 + 5) × 7 × 6 + 50	37
5	75 50 25 4 9 5 → 694	694 9 × 75 + 25 − (50 ÷ 5 - 4)	47 – 37	695		37
6	Spoilage 876 603 545 444 8 7 1 → 2574	2577 ☓	47 – 37	−	Best: 2574 = (876 - 545) × 8 − 444 ÷ (7 − 1)	57
7	Duckdown 100 75 50 25 5 3 4 → 1496	1496 3 × 5 × 100 − 4	57 – 47	1496 (25 + 5) × 50 − 4		67
8	Hyper Nasty 137 87 6 9 1 3 10 8 → 4092	−	57 – 57	4092 3 × 10 × 137 − 9 − 8 − 1		67
9	27 × (64 × 11 − 2) ÷ 13 → (1458)	1458 (10 seconds)	67 – 57			77

Semi-final 2

Elliott Mellor played Tom Cappleman, with Elliott Mellor winning 90 – 50.

Rnd	Selection	Elliott Mellor	Score	Tom Cappleman	Others	Max.
1	25 7 5 8 10 2 → 843	843 (25 × 7 − 8) × 5 + (10 - 2)	– 10	842		0
2	100 75 50 25 9 7 → 472	472 (75 + 50 − 7) × 100 ÷ 25	20 – 0	472 ☓		20
3	Hyper 100 25 2 3 7 10 9 6 → 3664	3664 (100 × 9 + 10 + 6) × (25 + 3) ÷ 7	30 – 10	3664 (100 × 9 + 25 − 7 − 2) × (10 − 6)		30
4	2 6 1 8 7 4 → 419	419 (8 + 2) × 6 × 7 − 1	40 – 20	419 (8 + 2) × 6 × 7 − 1		40
5	75 25 1 4 2 5 → 794	794 (75 × 5 + 25 − (4 − 1)) × 2	50 – 30	794 (75 × 5 + 25 − (4 − 1)) × 2		50
6	Hyper Nasty 87 62 12 10 5 7 9 9 → 6115	6115 (62 + 9) × 87 − (5 × 10 + 12)	60 – 30	6115 ☓		60
7	Nasty 12 10 9 9 3 4 → 782	782 (9 × 9 − 4) × 10 + 12	70 – 40	782 (9 × 9 − 4) × 10 + 12		70
8	Hyper 200 150 100 75 50 25 4 9 → 9999	9999 200 × 50 − (100 − 75) ÷ 25	80 – 50	9999		80
9	39 × 39 − 7 × 7 + 17 × 17 → (1761)	1761 (7.5 seconds)	90 – 50			90

Final

Elliott Mellor played Tim Down, with Elliott Mellor winning 144 – 97.