BrainTwisters
Your weekly dose of logical and mathematical puzzling.
BrainTwister
New 杏吧原创 puzzle #57: Matchstick magic
29 April 2020
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New 杏吧原创 puzzle #56: Diffy squares
22 April 2020
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New 杏吧原创 puzzle #55: Ton up
15 April 2020
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New 杏吧原创 puzzle #54: Pyramid of possibilities
8 April 2020
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New 杏吧原创 puzzle #53: Painting by numbers
1 April 2020
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New 杏吧原创 puzzle #52: Bus change
25 March 2020
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Puzzle #51: Birthday candles
18 March 2020
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New 杏吧原创 puzzle #50: Crossing the river
11 March 2020
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New 杏吧原创 puzzle #49: The tree in the snow globe
4 March 2020
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New 杏吧原创 puzzle #48: Seeing red
26 February 2020
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New 杏吧原创 puzzle #47: Geometra鈥檚 tomb
19 February 2020
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New 杏吧原创 puzzle #46: Pi-thagoras
12 February 2020
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New 杏吧原创 puzzle #45: Beetles on a clothes line
5 February 2020
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New 杏吧原创 puzzle #44: Elevator pitch
29 January 2020
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New 杏吧原创 puzzle #43: dividing Grandma’s field
22 January 2020
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New 杏吧原创 puzzle #42: The card conundrum
15 January 2020