Colorful World: Color Fill

Every colour has one starting dot. Draw a line out of it and cover every square on the board. Cross a line that is already there and it gives way — cut clean off at the crossing, back to its own dot. That is the whole game — and it gets harder for two hundred levels. TRAVEL THE WORLD Start at the Pyramids of Giza and work your way out: 200 levels across 40 places, 19 countries and 4 continents. Every place has its own photograph, from the Masai Mara to Machu Picchu to the dunes of Erg Chebbi — and every country its own music, an accordion waltz in France, Spanish guitar in Spain, Andean flutes in Peru. Finish a country and the next one opens. EVERY LEVEL HAS EXACTLY ONE ANSWER No luck, no dead ends, nothing generated and left unchecked. Every board is proved to have a single solution before it ships, so a level is always fair — and if you are stuck, it is because there is something to…