SKU: 74645956003

Fritz Trainer: Calculation Training-Sharpen Your Game w/Robert Ris

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Description

Fritz Trainer: Calculation Training-Sharpen Your Game w/Robert RisAdvanced Calculation Training. 73 Examples. 160+ Questions. No Easy Answers. This is not a beginner's tactics course. IM Robert Ris has selected 73 challenging examples the vast majority with multiple questions designed to push your calculation to its limits. Even some of the world's best players have failed to find the right answers in these positions. What This Course Covers (5 hours): Short forcing variations must be calculated with absolute

Advanced Calculation Training. 73 Examples. 160+ Questions. No Easy Answers.

This is not a beginner's tactics course. IM Robert Ris has selected 73 challenging examples — the vast majority with multiple questions — designed to push your calculation to its limits. Even some of the world's best players have failed to find the right answers in these positions.

What This Course Covers (5 hours):

  • Short forcing variations — must be calculated with absolute precision
  • Refuting opponent errors — punishing inaccuracies with concrete play
  • Spot the Weakness — identify the target before calculating the moves
  • Defend — finding the only move that holds under pressure
  • Brainteasers — the hardest positions in the course; take your time
  • Material based on recently played games and unpublished student games — fresh, unfamiliar positions

The interactive format guides advanced players through positions from afar, while less experienced players can take a fresh look at each question step by step. Suitable for ambitious players of any level who are serious about improving their calculation.

A Fritz Trainer video course — 5 hours of the most demanding calculation training available.

73 examples. 160+ questions. Positions that challenge the world's best. Sharpen your game.

Shipping Notes
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SKU: 74645956003

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DENISE
Natrona Heights, US
★★★★★ 5
Chic - Nice - backpack
Color: Upgrade-champagne Brown, Size: 14 Inch
Best laptop backpack Color adorable Quality amazing Thousands of pockets on the sides , inside back and front , plenty of storage Material is great
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Reviewed in the United States on May 16, 2026
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JH Kingsbury
Dallas, US
★★★★★ 5
Perfect for a backpack or a purse
Color: Upgrade-black, Size: 14 Inch, Color: Upgrade-black, Size: 14 Inch
I love this black backpack. It has gold zippers and brown accents and it has a pocket in the front two on the side three inside and a pocket on the back of the laptop pocket. I have a disability and have to carry extra stuff so this is a perfect size for me to wear in my back every day. It’s black nylon so it should stay clean. I tend to drop things. I think this will be great, but even without a disability, this is a great backpack. It’s so cute.
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Reviewed in the United States on October 7, 2025
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Rachel Fitzpatrick
Natrona Heights, US
★★★★★ 5
Perfect day bag!
Color: Upgrade-black, Size: 15.6 Inch
Super convenient and lightweight. I used it for two back-to-back conferences last week and it was PERFECT for what I needed to tote along all day. Fits my regular sized computer (15-16 inch) and even held my water bottle (which is larger than a regular plastic water bottle).
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Reviewed in the United States on February 27, 2026
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L. Casillas
Charlottesville, US
★★★★★ 5
Great backpack
Color: Upgrade-black, Size: 15.6 Inch
Stylish and lightweight for travel and work. Sturdy, comfortable straps. After trying about 5 different backpacks, I’m keeping this one.
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Reviewed in the United States on May 25, 2026
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Kana M. Golic
Grantham, US
★★★★★ 5
Stylish, light (laptop, phone, notebook & pen) +
Color: Upgrade-apricot, Size: 15.6 Inch, Color: Upgrade-apricot, Size: 15.6 Inch
Perfect for work! I use it for laptop, charger and few items necessary at work. I have a few blocks to walk from parking to work location and this bag has replaced last backpack and purse. Much easier to carry one item than two or more. Plus, it has enough room if you need to use it for clothes and toiletries (road-trip) or carry-on.
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Reviewed in the United States on February 12, 2026

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