I've been playing chess for about five years now, with a rating around 1400-1500. The problem is that in the middlegame I often miss winning moves or don't see my opponent's threats. Are there any specific exercises or training methods that could help?
Tactical puzzles are your main tool. At your level, most missed moves and overlooked threats happen because you're not training systematic searching. Solve 20-30 tactical positions daily on Chess.com, Lichess, or apps like ChessTempo. Start with easy ones, then move to harder puzzles. The key isn't just finding the right move - it's understanding why the others are bad. This trains your brain to scan the board faster and spot patterns: forks, pins, skewers, open lines.
At the same time, play games and analyze them afterward. After every game, review the analysis and specifically look for moments where you missed something. Try to find the best move yourself first, then check with the engine. In a month or two you'll notice you're seeing threats coming instead of spotting them a move too late. It also helps to solve "find the defense" puzzles - where you need to spot and prevent your opponent's attack instead of attacking yourself. It's harder than just going on the offensive, but that's exactly what most people at your level are missing.
Do you analyze your games afterwards, or do you try to calculate deeper during the game itself?
Here's what I've noticed: at your level, it's often not about calculating 10 moves ahead, but about forgetting your opponent's counterplay when you're working through a variation. You see a nice attack, start working it out, and miss that your opponent is meanwhile creating a counterattack or just threatening mate somewhere else on the board. I'd suggest that before each move, you specifically ask yourself: what's threatening me right now? Then you calculate your own ideas.
On top of systematically solving positions (that really does work), add analysis of your own games. Take a recent loss, look at exactly where you missed a win or didn't notice a danger - and work through that position on the board slowly, without time pressure. Often it turns out you're just not used to looking for threats in certain positions (like when the king is in the center, or when there are hanging pieces). Once you understand your blind spots, you'll see better in your games.
Analyzing your own games after playing is what actually changes your calculation in the middlegame. Tactical puzzles are useful, but they're artificial, and in real play the problem often isn't finding a beautiful combination - it's noticing that the position is heating up in the first place. Record your games (at least mentally during play or from memory afterward), then analyze the critical moments: where you missed a win, where you didn't see a threat. Over time you'll start spotting these signals earlier - your opponent's active pieces, open lines, an undefended king.
On top of that, it makes sense to study middlegame ideas from master games at your own level of play, rather than mindlessly watching super-GMs: you need ideas that work in actual positions, not calculation miracles.
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