2023 Day Solved Part 1 time (ms) Part 2 time (ms) Day 1: Trebuchet?! ⭐⭐ 0.069 0.219 Day 2: Cube Conundrum ⭐⭐ 0.160 0.145 Day 3: Gear Ratios ⭐⭐ 11.120 20.960 Day 4: Scratchcards ⭐⭐ 68.110 66.000 Day 5: If You Give A Seed A Fertilizer ⭐⭐ 0.051 0.096 Day 6: Wait For It ⭐⭐ 0.003 24.580 Day 7: Camel Cards ⭐⭐ 13.560 58.780 Day 8: Haunted Wasteland ⭐⭐ 0.648 26.230 Day 9: Mirage Maintenance ⭐⭐ 0.517 0.472 Day 10: Pipe Maze ⭐⭐ 81.010 78.440 Day 11: Cosmic Expansion ⭐⭐ 27.150 23.450 Day 12: Hot Springs ⭐⭐ 5.910 198.950 Day 13: Point of Incidence ⭐⭐ 4.290 159.750 Day 14: Parabolic Reflector Dish ⭐⭐ 1.500 206.057 Day 15: Lens Library ⭐⭐ 0.145 0.706 Day 16: The Floor Will Be Lava ⭐⭐ 26.700 5789.991 Day 17: Clumsy Crucible ⭐⭐ 126.440 407.990 Day 18: Lavaduct Lagoon ⭐⭐ 0.055 0.076 Day 19: Aplenty ⭐⭐ 0.500 0.479 Day 20: Pulse Propagation ⭐⭐ 12.550 70.650 Day 21: Step Counter ⭐ 300.150 - Day 22: Sand Slabs ⭐⭐ 55.959 135.398 Day 23: A Long Walk ⭐⭐ 6.943 10855.790 Day 24: Never Tell Me The Odds ⭐ 2.406 - Day 25: Snowverload - -