Temposchlucker

 Currently I'm working my way through 1001 Chess Endgame Exercises for Beginners . That may sound  not as effective as it can be. After all, I'm no beginner anymore. And the problems in the course are relative easy and fast to solve: Mate in 1 Win a piece in 2 Mate in 2 Win a piece in 3 Defend your king Defend your pieces It are not the problems that causes me a loss in my average games. Since if I cannot solve the problem with System 1 immediately, I certainly can solve these problems with the aid of System 2 within a reasonable short time. So why bother? I can solve about 75% of the problems solely by working with System 1. That means that I can answer a barrage of questions  in no time. What IF then THAT. In 25% of the cases I need System 2 to kick in. Since it are relative simple questions, it doesn't take much time to answer, and the error percentage is quite low. Learning to solve these puzzles is probably not going to get me many rating points. In the previous...

  What have I found so far? The Trick is the decisive element from novice to super grandmaster. It is the decisive element between two players of equal level. Players with equal rating differ in what they have automated (absorbed by System 1). What happens in the game determines which skill is pivotal. That is a matter of chance. The human mind is not suitable to play chess. Because the mind is easily overwhelmed. There are too many parameters. So we need a trick to prevent the mind from cognitive overload. Luckily, evolution has provided us with a mechanism to prevent cognitive overload. We can simplify reality before it happens. By logic and conceptualisation we can simplify the world so it becomes more manageable. We even have an inner LLM which can predict the future based on what has happened before. Of course such simplification results in mistakes caused by bias every now and then. When you hear a rustle in the bushes you better be biased that it is a lion and run, rather th...

 Robert uses the same book as me, which is handy because I have seen the problem before. White to move 6k1/4brpp/r1p1pp1B/p3q3/2P1N3/PP4Q1/2n3PP/3R1R1K w - - 0 22  Orange square - target. Targets are pieces or PoPs (points of pressure) that lie on the LoA (line of attack) from attacker to piece. f8 is a bit surprising, but it is on the LoAs from the white roos towards the black king. They converge on f8. Red circle - defender. Piece with a function. The defenders are restricted in their movements. By forcing the defenders to fulfill their duties you can win a crucial tempo that makes the combination work. 22.Nf6+ Bxf6   now the bishop has a double function. Or actualy a triple function: it must defend the invasion square d8 it must defend Qe5 it must keep the f-file closed 23.Qxe5 Bxe5 make use of the overloaded black bishop. The invasion square d8 is no longer defended. Notice how the white attack follows the change of functions. Essentially, white has won a tempo her...

  Another mysterious subject is the Tempo.  CM Dan Heisman was een advocate of the CCT method, which is a crude method to drum up a series of candidate moves. Black to move 4r1k1/1p4bp/3qp3/5pp1/Q4N2/2P2PP1/PP5P/1K2R3 b - - 0 23 Slingerland, F. vs. Pijpers, A., Leiden 2013 Source  1001 Chess Exercises for Advanced Club Players There is some sort of tempo balance here. Black wants to take the white knight, but he must first bring his rook into safety. 1. ... b5  in order to chase the white queen away or to a place where the black rook can attack her in a safe way. (notice the redundant candidate moves of CCT 1. ... Ra8 1. ... gxf4 1. ... Qxf4  1. ... Bxc3 1. ... Qd3+ 1. ... Qd1+ 1. ... e5 ) 2.Qxb5 Rb8 3.Qd3    Now black needs still a tempo 3. ... Qb6 Finally a tempo that cannot be parried with a counter tempo! Notice how logic prunes the list of potential candidate moves rigorously.

 We are making the next step. We already have extensively treated the first two ways to gain profit from tactics: double (duplo) attack trap (mate) The double attack is based on time (tempi). The trap is based on space. Function Now it is time to get a better idea about function. In the previous post I discovered that function revolves around the balance between attackers and defenders of a target. What do we know? When is a piece hanging? [1:0] 1 attacker, 0 defenders. [2:1] 2 attackers, 1 defender In general when there is 1 attacker more than defenders LPDO [0:0] 0 attackers, 0 defenders In general a target is vulnerable for tactics when it is not defended B.A.D. (Barely Adequate Defended) [1:1] 1 attacker, 1 defender [2:2] 2 attackers, 2 defenders [3:3] 3 attackers, 3 defenders A target is B.A.D. when the amount of attackers and defenders are in balance. The target with the most defenders is the most vulnerable, The more defenders, the higher the chance that one of the defenders...

 Most of the PoPLoAFun seems to be automated to a certain degree. There is one part that must still be done by System 2 though: FUNction. Let's see whether we can change that. White to move. Red circle = point of pressure. There are 3 PoPs (points of pressure) here. Considered separately, every PoP is defended well. But by taking out the defenders in the right order, it is possible to let the defense collapse. Rd7 takes out the Queen and pawn e5. Bb2+ takes out the defender of f8 Viewed in this light, the position becomes fairly straightforward. This reflects what I noticed during the tournament: tactical combinations are decided by imbalances on the FUNction level. All defense is well organized separately, but by putting stress on it in the right order, a certain defender collapses under the pressure. Due to a double function or a restriction in mobility.

 Somehow the term mini skill emerged during my investigations. So far it was based on a gut feeling and not on a proper definition. Let's see whether we can find out more. Robert came up with the following position: 5r1k/2q4b/p3p2Q/1pp4p/8/1P3r2/P1P4P/1KBR2R1 w - - 3 27  Saric, I. vs. Bosiocic, M. I see the following salient cues: Qxf8 mate if it wasn't voor the defender Rf3 Qg7 mate if it wasn't for the defender Qc7 Bb2 mate if it wasn't for the defenders Qc7-e5 and Rf8-Rf3 So I guess that finding the defender is a mini skill. When we find a defender, the next logical step is the question "can we annihilate the defender?". With tempo would be nice. 1. Rd7 deflects the Qc7 with tempo (Qxh7#). 1. ... Qxd7 2.Bb2+ can only be defended by the self-pin of a rook, after which f8 becomes vulnerable for invasion. So the following mini skills emerge: See the salient cues (the mates) Find the defenders Annihilate the defenders with tempo The logical narrative is the gu...