I recently watched a short Youtube video from the channel Date un Vlog of the Spanish physicist Javier Santaolalla and wanted to fact-check and review it.

♔♞♙ Chess Puzzle of the Day Black to play and win This is a game I just played—literally. In the endgame, I sacrificed a piece for three pawns to trick my opponent, and it worked. His king just moved forward,

♔♞♙ Chess Puzzle of the Day Black to play and win They say that pawn endings are very precise, and therefore you should be able to have absolute certainty about when they are won or are mere draws. It

♔♞♙ Chess Puzzle of the Day Black to play and win White won't have much fun here once they realize they don't have many options other than to cooperate with White. What exactly are we talking about? Do

♔♞♙ Chess Puzzle of the Day Black to play and win Another example of a disastrous natural move. White captured on d4 with the wrong pawn, allowing Black to gain material. I'm sure they'll hate playing

♔♞♙ Chess Puzzle of the Day Black to play and win White has just played Nd3 to defend f2, overlooking the fact that it isn't the only relevant square. Now they're allowing a winning combination. See if

♔♞♙ Chess Puzzle of the Day White to play and win The natural Rab8 turned out to be an ironically self-defeating move. White responded with Qxe7, but is that really the best move? Do you want to exercise

♔♞♙ Chess Puzzle of the Day White to play and win And this time, White gave away their queen with Qe4 instead of launching a textbook-perfect winning attack! You'd better teach them how it's done! Do you

♔♞♙ Chess Puzzle of the Day White to play and win Black played Qc1-f4 to threaten Qf1, but could have made that move right away and won. What a waste! Now they're bound to lose. Do you know the correct

♔♞♙ Chess Puzzle of the Day Black to play and win Do you want to exercise your tactical skills a little? Then solve this chess puzzle. Indicate the correct move and a full continuation. If you want, you

♔♞♙ Chess Puzzle of the Day White to play and win An instructive offensive strategy that has already reached a boiling point. Settle things once and for all, and then take in the result! Do you want to

♔♞♙ Chess Puzzle of the Day Black to play and win A lack of tactical awareness led Black to miss a great opportunity to turn this around with Black. They played the passive and harmless cxd5... but is

♔♞♙ Chess Puzzle of the Day Black to play and equalize Another critical moment from a recent online game from which we have already gleaned a valuable tactic. Another opportunity arose that would have

♔♞♙ Chess Puzzle of the Day Black to play and win I came across this position the other night, and even though I figured out the winning move, I didn't do it in the right order—and that makes all the

♔♞♙ Chess Puzzle of the Day Black to play and win A complicated position, given the exposure of the kings. However, if played correctly, Black should come out ahead. Do you think you're up to the task

♔♞♙ Chess Puzzle of the Day Black to play and win A basic mistake: failing to recognize a checkmate pattern here. How does White lose? Do you want to exercise your tactical skills a little? Then solve

♔♞♙ Chess Puzzle of the Day White to play and win Niemann won this game against Abhimanyu Mishra in the current U.S. Championship to bring his win rate back to 50%. At the press conference, he explained

♔♞♙ Chess Puzzle of the Day Black to play and win A well-deserved victory at last. This time, my opponent made a serious mistake in the opening, and after losing a pawn very early on, he was doomed. But

♔♞♙ Chess Puzzle of the Day Black to play and win This is an opening trap my opponent fell for completely, but one I got wrong and couldn't really capitalize on. How do you punish their desperate move

♔♞♙ Chess Puzzle of the Day White to play and win More than a tactical exercise, this is one about understanding. Faced with the capture on d5 by the queen, Black responded with Bb7, instead of making

♔♞♙ Chess Puzzle of the Day Black to play and equalize A critical moment in a classic endgame: good knight vs. bad bishop, but one that should still be holdable. White is pushing to make progress, hence