SKU: 43789966194

Fritz Trainer: Key Concepts of Chess-The Hedgehog w/Grooten

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Description

Fritz Trainer: Key Concepts of Chess-The Hedgehog w/GrootenThe Hedgehog. Compact, Resilient, and Full of Counterplay. Understand It Completely. To understand openings properly, you must first understand the middlegame structures they lead to. IM Herman Grooten takes club players by the hand and examines one of chess's most fascinating and widely applicable structures the Hedgehog. The Hedgehog is characterized by at least four Black pawns on the sixth rank the "spikes" combined with a large White space

The Hedgehog. Compact, Resilient, and Full of Counterplay. Understand It Completely.

To understand openings properly, you must first understand the middlegame structures they lead to. IM Herman Grooten takes club players by the hand and examines one of chess's most fascinating and widely applicable structures — the Hedgehog.

The Hedgehog is characterized by at least four Black pawns on the sixth rank — the "spikes" — combined with a large White space advantage created by c2-c4 and the exchange of Black's c-pawn for White's d-pawn. It looks passive. It isn't.

What This Course Covers (4 hours):

  • The basic ideas for both White and Black in the Hedgehog structure
  • Why the Hedgehog is viable despite White's space advantage — illustrated through all examples
  • How Black generates active counterplay once White's direct aggression is weathered
  • The Hedgehog's appearance across many opening variants — making this knowledge universally applicable
  • Grooten's personal experience with the system — he uses it himself

A Fritz Trainer video course — 4 hours of strategic instruction on one of chess's most instructive and transferable middlegame structures.

The Hedgehog. Understand the structure. Master the counterplay. 4 hours of essential strategy.

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SKU: 43789966194

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Antonio Frontera
Battle Creek, US
★★★★★ 5
Buen producto
Size: 10FT, Style: 16AWG-3C
Buen producto, cumple con su propósito
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Reviewed in the United States on March 10, 2026
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Amazon Customer
Dallas, US
★★★★★ 5
Very good for the price
Size: 30FT, Style: 16AWG-3C
Great for what I used it for
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Reviewed in the United States on October 2, 2024
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Verified Purchase
Sparky
Los Angeles, US
★★★★★ 5
Worked out great
Size: 10FT, Style: 16AWG-3C
Just what we needed to rewire a light fixture with
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2023
J
jfrowe1
Boise, US
★★★★★ 5
Perfect to make extension cords
Size: 20FT, Style: 16AWG-3C
I have several portable tungsten work lights on stands. They product a high level of light which is great for work in a place without adequate lighting. I can move the lights around and get the best lighting. The problem is that they have short cords. This wire, the 16AWG (with the addition of a plug and a receptacle) will solve that problem. The outer jacket is rugged enough to handle daily use and it is light enough that it is not a bother to carry several to the work site. With a rating of 13.1 amps it maybe a little light to use as a replacement cord for power tools, but this wire does come in several other sizes including 14AWG which should work on most tools.
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Reviewed in the United States on November 18, 2022
W
W. B. Smith
Phoenix, US
★★★★★ 5
nice 3 strand 16 gauge wire
Size: 20FT, Style: 16AWG-3C, Size: 20FT, Style: 16AWG-3C
This review is for a 20 foot sample of 3 stranded 16 gauge wire. 300V capacity. Using a multimeter, I got a resistance reading of 0.2 ohms across each of the three strands (at roughly 68 degrees Farenheit). Specs say 26 strands of 0.254 mm Tinned copper wire are inside each cable. Good flexibility in the covering.
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Reviewed in the United States on November 18, 2022

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