What is the difference between a combination and a single tactical shot?
These answers restate the rules implemented by our open-source engine, which follows the WXF laws and is regression-tested against the official 110-diagram repetition casebook. Where an answer refers to a specific position, that position lives on the linked reference page, where the build verifies it against the engine before publishing.
Direct answer
A single tactical shot is one move, a fork, a simple capture, a check, that wins material or forces mate by itself. A combination is a forced sequence of several moves, often including sacrifices, where no individual move in the middle looks decisive on its own, and the whole point only becomes clear once the entire sequence has been calculated through to its end.
Why the distinction matters for how you calculate
A single shot can often be spotted by pattern recognition alone, you see the fork, you play it. A combination requires calculating forward through moves that may look bad or pointless in isolation, trusting that the forced sequence reaches a good result several moves later. Stopping the calculation early because an intermediate move looks strange is how good combinations get missed.
Why combinations are harder to find and to trust
Because no single move in a combination has to look good on its own, recognising that one exists in the first place is the real skill, not just calculating it once you suspect it is there. See how to know if a combination is sound for verifying one once you think you have found it.
Related questions
Which should I study first as a beginner?
Single tactical shots. They are the building blocks combinations are made from, and recognising them quickly is a prerequisite for spotting combinations at all.
Are all sacrifices part of combinations?
No, a sacrifice can also be a single, immediately justified shot on its own, without needing a longer forced sequence to follow.
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