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If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, withing 24 hours on weekdays.
Customer service
All questions about your order, return and delivery must be sent to our customer service team by e-mail at yourstore@yourdomain.com
Sale & Press
If you are interested in selling our products, need more information about our brand or wish to make a collaboration, please contact us at press@yourdomain.com
No time to study chess opening theory? Secrets of Opening Surprises (SOS) consists of highly playable, unusual opening ideas. Because an SOS is such an early deviation from the regular lines in mainstream openings (usually before move six), the probability of you being able to bring the variation actually on the board is very high. If you are tired of main lines, if you are looking for simple but effective weapons to perplex your opponent, then you will feel very much at home in the world of SOS.
⚠️ WARNING (California Proposition 65):
This product may contain chemicals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
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