Lichess.org Computer Stockfish Level 3. The increase in difficulty from Stockfish level 2 which is beyond easy to 3 is pretty steep. Once you hit level 3 it’s like what the hell happened here, you get punished significantly. I have beaten Stockfish 4 on my better days but 3 is an up hill battle to have any winning consistency. Nerd rage often, try it level 2 vs 3. A few more notes after analysis, Stockfish 3 will blunder often but they are not super noob obvious as easier levels and I missed many easy captures. Once you make a solid capture of a main piece more chinks in armor show. If you are ahead at end game it will always try to force a stalemate, really slow down and look. This is what I mean by punishing you, beating them then lose it to a stalemate. Move speed improves over time, but going too fast too soon is like beating yourself.