Hi Robbie
Congruent's explantion is spot on.
The position is won and just requires the winning player to 'usually'
trade down into a clearly won ending.
The Abrahams book you are thinking of Robbie is '
The Chess Mind.' and
yes it is a rather difficult book to read.
His
Technique in Chess on the other hand is quite superb.
He does mention the use of the phase 'Technique' is over used and
sometimes wrong.
A better term according to him is 'the winning method' and should be
explained by lazy authors instead of copping out with:
"...and the rest is a matter of technique."
Technique = a win without specualtion.
You know the winning method in how to mate with a King & Rook.
This is a win without specualtion. It's technique.
You can have tactical technique.
For instance spotting a Phildors Legacy or seeing a mate in ALL varations
of a combination, something like a perfect Greek Gift Bishop sac on h7.
You are pulling out all the mating patterns as you do when playing a
King & Rook v King ending.
Knowledge is technique.
You know in some cases split pawns can beat connected pawns.
He is a wee study I just composed leading to a position in Abrahams
Technique in Chess.
[FEN "k3q3/8/P7/1P6/8/5p2/5Kp1/2Q5 w - - 0 1"]
1. Qc6+ {White deliberatly splits his pawns because he knows that after....} 1... Qxc6 2. bxc6 {Split pawns on the 6th win v a lone King on the back rank. 2...Ka7 3.c7 and the pawn promotes.} 2... Kb8 {White on the other hand can easily stop the (theorectically far superior) connected pawns. (this is the position in Abrahms book.)} 3. Kg1 {Zugzwang on Black. 3...Ka8 or 3...Ka7 meets 4.c7 and 3...Kc8 or 3...Kc7 meets 4.a7. So...} 3... f2+ 4. Kxf2 g1=Q+ 5. Kxg1 {And one of the pawns promotes.}
Here is a position from a recent game of mine.
Game 9978132
White is a piece up so the win is a matter of technique.
No. Not yet. Black has a pawn for the piece.
White needs to find a way of crashing through.
First we must see the 'method' to obtain the Technically won position.
Here is one method of winning. (which I cocked up and had to find
another way which involved saccing all my Queenside pawns.) 🙂
Method One. (the plan)
Select the advanced pawn on f5 as a promotion candidate, sac the piece
back for two pawns.
Black has a way of stopping this plan, so it's not technically won....yet.
[FEN "1r4r1/2p2kp1/p1p2pRp/4pP2/1p2P3/3PB3/PPP2K2/6R1 w - - 0 1"]
1. R1g2 {At the moment White has the threat of Bxh6 so this is played to allow the King to get to the h-file without breaking the connection of the Rooks thus keeping the g8 Rook tied down. In my game I did not do this and Black dug in with Rh8 and Rh7 making this method winning impossible.} 1... a5 2. Kg1 a4 3. Kh2 {Now 3....b3 trying to activate the free Rook is answered with cxb3 and a3.} 3... Rbd8 4. Kh3 Rb8 5. Kh4 {Black can play 5...h5 6.Kxh5 Rh8+ and Rh7 then White needs another winning method.} 5... Rbe8 6. Kh5 Rb8 {OK everything is place.} 7. Bxh6 gxh6 8. Rxg8 Rxg8 9. Rxg8 Kxg8 {Now 10 Kg6 h5 11 Kxf6 h4 12 Ke7! means White Queens first but this...} 10. Kxh6 {...is easier.} 10... Kf7 {Black cannot let the White King onto g6.} 11. Kh7 {But because White can play Kh6 -h7-h6 will always be within one move of g6 he will win due to zuggers} 11... c5 12. Kh6 c6 13. Kh7 a3 14. b3 c4 15. dxc4 c5 16. Kh6 Kf8 17. Kg6 Ke7 18. Kg7 {The f6 pawn must fall and we are now have a technical win. White will be a Queen up the win is not in any doubt}