Free chess coaching videos online

I've been slow to tune in to what's available on places like YouTube for chess instruction, but here's a start, and I'll add to it over the while.

Comments and recommendations welcome; if there's an obvious gap I might have a go myself.
contact

Beginners
Level D: Improvers
Level C: Club players
Level B: Better players
Level A: County players

Beginners
1. Openings
  - Opening principles https://www.youtube.com/watch?v=UoFqV1lxA7Q
    https://www.youtube.com/watch?v=RD4nYJzr69A
    https://www.youtube.com/watch?v=lNO9KCloLRE
  - Italian Game https://www.youtube.com/watch?v=DP9uUT3Kd-w
  - Scotch Game https://www.youtube.com/watch?v=Y-c3fWDEIQvw
  - Ruy Lopez https://www.youtube.com/watch?v=miLFeNwQ5n4
  - Two Knights' Defence for Black https://www.youtube.com/watch?v=4uuZqWlCXeo
    Fried Liver https://www.youtube.com/watch?v=0ITi9Jc0J-o
    Ulvestad https://www.youtube.com/watch?v=dx-J71v3JkU
  - Playing Black in 1.e4 e5 openings https://www.youtube.com/playlist?list=PLEEA03DA1247EC963
  - Playing Black against Queen's Gambit https://www.youtube.com/watch?v=Ie_tHRrc1Qs
  - Opening traps https://www.youtube.com/watch?v=XETFf3k6xUU
2. Tactics
  - Basic tactics https://www.youtube.com/watch?v=Qu1HEwprohU
  - Understanding tactics https://www.youtube.com/watch?v=tySL8qEVwhU
  - Essential tactics https://www.youtube.com/watch?v=uwxyp6E-mJ
  - Beginner tactics https://www.youtube.com/watch?v=60_8wbsDMfg
    & https://www.youtube.com/watch?v=r0r5vXgdWzI
3. Strategy
  - Attacking https://www.youtube.com/watch?v=5iELWZ2_rXc
  - Attacking the Uncastled King https://www.youtube.com/watch?v=J5vxaqf_JlE
  - Attacking the King's-side https://www.youtube.com/watch?v=up4-DxIU3W0
    & https://www.youtube.com/watch?v=mE0NfAqOpeo
  - Defence https://www.youtube.com/watch?v=Fcqfnanq-H8
  - Greek gift https://www.youtube.com/watch?v=yB7BmQ92kME
4. Endings
  - Studies https://www.youtube.com/watch?v=qujS-6E_YYU
    & https://www.youtube.com/watch?v=QVPueKsJgPU
  - King and Pawn https://www.youtube.com/watch?v=PLUu9hXOpLQ
  - Capablanca's Endgames https://www.youtube.com/watch?v=ziCLlmz0ATo
5. Praxis
  - Early games https://www.youtube.com/watch?v=HAsviaQsia4
  - Terrible games https://www.youtube.com/watch?v=8KYqy42DpDY
  - The Opera Game https://www.youtube.com/watch?v=p69y8bTajDs
  - Climbing the rating ladder: up to 1000 https://www.youtube.com/watch?v=U2huVf1l4UE&list=PLl9uuRYQ-6MCBnhtCk_bTZ...
  - Climbing the rating ladder: 1000-1200 https://www.youtube.com/watch?v=U2huVf1l4UE&list=PLl9uuRYQ-6MCBnhtCk_bTZ...
Level D: improvers
1. Openings
  - King's Gambit, Muzio Gambit Variation https://www.youtube.com/watch?v=pijn84KmtXg&list=PL-hyH6p_A7YMG7byh5r6KE...
  - Caro Kann Panov https://www.youtube.com/watch?v=S68Ej-F6YwI
    & https://www.youtube.com/watch?v=jJdkPlk51FY
  - c3 Sicilian https://www.youtube.com/watch?v=1vaTT8jcDf4
    & https://www.youtube.com/watch?v=SUWBZLMIPu4
  - French defence: https://www.youtube.com/watch?v=FBq4d1yVa-k&index=3&list=PLcZfxD90xzuckv...
  - Scandinavian https://www.youtube.com/watch?v=OGehkS76Q24
  - Alekhin Defence Exchange variation https://www.youtube.com/watch?v=Zz6z7LW4zqI
  - Pirc Defence https://www.youtube.com/watch?v=GHQhBFGdblA
  - Playing Black in 1.e4 e5 openings https://www.youtube.com/playlist?list=PLEEA03DA1247EC963
  - Black vs 1.d4: Swiss Defence ????
    QGD fianchetto https://www.youtube.com/watch?v=CeZHB6IHnd4
    & https://www.youtube.com/watch?v=C-cvBT1Si-k
    Stonewall Dutch https://www.youtube.com/watch?v=qoPOOPpjSgA
2. Tactics
  - Intermediate tactics https://www.youtube.com/watch?v=Zab03F4XISo
  - In-between moves https://www.youtube.com/watch?v=CeJBdm5Q5rI
3. Strategy
  - Pawns and holes https://www.youtube.com/watch?v=1wtuc5jeYBM
  - Isolated Queen's Pawns https://www.youtube.com/watch?v=nOs2fG_Hc_A
  - For and against IQP https://www.youtube.com/watch?v=zv0jtgbtQ28
4. Endings
  - Rook and Pawn https://www.youtube.com/watch?v=A9H8B1qs1gg
  - Queen and Pawn https://www.youtube.com/watch?v=9j3U6VG407c
  - Bishop and Pawn https://www.youtube.com/watch?v=6_qqtRHkaRY
  - Knight and Pawn https://www.youtube.com/watch?v=kE60vrdWecw
5. Praxis
  - Middlegames https://www.youtube.com/watch?v=2ae7mw0Tjjw
Level C: club players
1. Openings
  - Ruy Lopez Schliemann Gambit (Jaenisch) https://www.youtube.com/watch?v=3S1LMYnX96I
    & https://www.youtube.com/watch?v=qLrNqXLpUmg
  - Ruy Lopez Exchange Variation https://www.youtube.com/watch?v=Y0f8dMQgT30
  - Colle System https://www.youtube.com/watch?v=BmhkX2cKYIs&list=PLMiWq9COyjicWcuUADOqjz...
  - Colle-Zukertort https://www.youtube.com/watch?v=JB-fp6lc1bQ
  - French Defence: https://www.youtube.com/watch?v=hOP-nHf8iQE
    https://www.youtube.com/watch?v=f4nYfr0ddrw
    https://www.youtube.com/watch?v=iswbGTNzWH8
    https://www.youtube.com/watch?v=QK5Ei3IyCN0
  - Black vs. 1.d4 https://www.youtube.com/watch?v=vdADt_DfgzE
  - Queen's Gambit Exchange Variation https://www.youtube.com/watch?v=v-_HCcRkXg4
  - Tarrasch Defence https://www.youtube.com/watch?v=Gk35ZKf72VE
2. Tactics
  - combinations https://www.youtube.com/watch?v=pCN_eKP7gJM
  - calculation https://www.youtube.com/watch?v=9hbIstMCoH8
3. Strategy
  - IQP transformations https://www.youtube.com/watch?v=60dJQ3CbOKQ
  - Tactics and strategy https://www.youtube.com/watch?v=dr0t_2nqwE0
  - Middlegame planning https://www.youtube.com/watch?v=uCRIi-Y-TYQ
  - Middlegame strategy https://www.youtube.com/playlist?list=PLpbSCK-lQ8KeBXYvI1s1ru9e0_vaDg1a8
4. Endings
  - Saving endgames https://www.youtube.com/watch?v=UTFWZ9zQKXU
  - Rubinstein's endgames https://www.youtube.com/watch?v=z4xhhKZiU-4
  - Amazing endgames https://www.youtube.com/watch?v=9XVaO5jwLIk
  - Pawn races and breakthroughs https://www.youtube.com/watch?v=iDInc25Irms
  - Example endgames https://www.youtube.com/playlist?list=PLpbSCK-lQ8Ke3N7Vs_ifCmhlqNOt5cs-g
5. Praxis
  - Climbing the rating ladder: 1200-1400 https://www.youtube.com/watch?v=U2huVf1l4UE&list=PLl9uuRYQ-6MCBnhtCk_bTZ...
  - Climbing the rating ladder: 1400-1600 https://www.youtube.com/watch?v=U2huVf1l4UE&list=PLl9uuRYQ-6MCBnhtCk_bTZ...
Level B: better players
1. Openings
  - Repertoire for White with 1.d4 https://www.youtube.com/playlist?list=PL9FA3D5561ADFB090
  - Fight the London System as Black https://www.youtube.com/watch?v=ClpOI6HgdX8
  - Beating the Bird's Opening https://www.youtube.com/watch?v=5xoUgBFHVuc
2. Tactics
  - Advanced tactics https://www.youtube.com/watch?v=KJ_CnY_6RKc
    & https://www.youtube.com/watch?v=OvwpQpURfms
  - Advanced analysis https://www.youtube.com/watch?v=RE5XutM9D7c
    & https://www.youtube.com/watch?v=aX4EkEmWTcs
3. Strategy
  - Two Bishops https://www.youtube.com/watch?v=ZoaLgbniSpw
  - Ruy Lopez Middlegames https://www.youtube.com/watch?v=wKb8pDrkqHE
  - Minority attack https://www.youtube.com/watch?v=qfy86Wm1Waw
  - Exchanges https://www.youtube.com/watch?v=tGqaixsLGt8
  - colour complexes https://www.youtube.com/watch?v=lHWqUujMH64
4. Endings
  - Endgame course(!) https://www.youtube.com/watch?v=hS3UTs1wJzg
  - Two weaknesses https://www.youtube.com/watch?v=h1HjgsjbjLY&list=PLpbSCK-lQ8Ke3N7Vs_ifCm...
  - Endgames galore https://www.youtube.com/playlist?list=PLpbSCK-lQ8Ke3N7Vs_ifCmhlqNOt5cs-g
5. Praxis
  - Climbing the rating ladder: 1600-1800 https://www.youtube.com/watch?v=U2huVf1l4UE&list=PLl9uuRYQ-6MCBnhtCk_bTZ...
  - Practical advice on time trouble and draw offers: https://www.youtube.com/playlist?list=PLgtWsdyLNS02OKp3V4G5Yf_FQzHa_LgS9
Level A: County players
1. Openings
  - [Too many! e.g. King's Indian Attack https://www.youtube.com/watch?v=_q9gutxo3lI&list=PL31638B3E6DADADCE ]
2. Tactics
  - Difficult positions https://www.youtube.com/watch?v=nklyRGfqHnY
3. Strategy
  - Thinking ahead https://www.youtube.com/watch?v=5mXVYR4wbOU
  - Middlegame possibilities https://www.youtube.com/watch?v=XOB8LXIbo00
  - Strategic ideas https://www.youtube.com/watch?v=aX4EkEmWTcs
    https://www.youtube.com/watch?v=Fb6BPbkv2Y8
  - https://www.youtube.com/watch?v=gQBKv3dG02U
  - weaknesses https://www.youtube.com/watch?v=AaM-fyLB3gk
  - Prophylaxis https://www.youtube.com/watch?v=gQBKv3dG02U
  - The Initiative https://www.youtube.com/watch?v=NTVJE6suH-Q
4. Endings
  - Technical Rook and Pawn endgames https://www.youtube.com/watch?v=oOgch8gXvDQ
  - R+4P vs R+3P https://www.youtube.com/watch?v=Znh8yshNBJU
  - The Initiative https://www.youtube.com/watch?v=NTVJE6suH-Q
  - Practical Endgame Advice https://www.youtube.com/watch?v=EnZRfCP_NLI
  - Complex chess endgames https://www.youtube.com/watch?v=LCAK5-0Nu3o
  - Shirov's Endgame Mastery https://www.youtube.com/watch?v=BYQm8cy1tVw
  - Difficult endgames https://www.youtube.com/watch?v=Y4B4j7wnlNY
5. Praxis
  - Climbing the rating ladder: 1800-2000 https://www.youtube.com/watch?v=U2huVf1l4UE&list=PLl9uuRYQ-6MCBnhtCk_bTZ...
  - Inside the GM mind https://www.youtube.com/playlist?list=PLQQ6Y41L8gPP1PiriMg34uezoVTiUG5Hp
  - BCM games of the month: https://www.youtube.com/user/YMChessMaster
  - World-class games https://www.youtube.com/playlist?list=PLpbSCK-lQ8Ketzhxo_eC-8He_P6YDu9Mn

Coaching

Class:

G

Quotes

"The most important feature of the chess position is the activity of the pieces. This is absolutely fundamental in all phases of the game (opening, middlegame and especially endgame). The primary constraint on a piece's activity is the Pawn structure."

Michael STEAN, in Simple Chess.