Sprawdź swoją siłę taktyczną - czyli Dan Heisman (instruktor szachowy z USA) poleca (moim zdaniem bardzo ciekawy i prosty artykuł/test po angielsku). Myślę, że każdy z was bez problemu da sobie z nim radę.
Tutaj jest link do tego artykułu (w PDF):
Polecam najpierw przeczytać instrukcję, aby sobie zmierzyć poziom siły taktycznej - nazwanej przez Dana Heismana: *The Bain Rating Tactics Quiz
1. Black to play and win
2. White to play and win
3. White to play and draw
4. White to play and win
5. White to play; find the easiest win
6. White to play and win
7. White to play and win
8. Black to play and draw
9. Black to play and win
10. White to play and win
11. White to play and win
12. Black to play and win
Answers to Problems (tactical motif in parentheses) [ODPOWIEDZI do zadań/problemów]
1. (Double threat)
1…Rxd4 2.Rxd4 Qe5 threatens 3…Qxd4 and 3…Qh2#, so
Black wins material. For example, 3.Bf4! Qxf4 (much better than 3…Qxd4
4.Bxc7) wins two pieces for a rook. You don't need to foresee 3.Bf4 – a
good defensive move – for full credit. Not immediately 1…Qe5?, when
White defends with 2.Nf3 or 2.f4.
2. (Back-rank mate)
1.Qxa8+ This "simple" problem tests diagonal
board vision. For more on the three types of chess "vision," read the
article on that topic in my book
A
Guide to Chess Improvement.
3. (Draw by perpetual check)
1.Qxb7+ Nxb7 2.Rxb7+ Ka8 (2…Kc8??
3.Rhc7#) 3.Rxa7+ will draw by threefold repetition of position.
4. (Double check)
1.Nf5+ exf5 2.Bc5#.
5. (Pawn promotion) White is winning on any reasonable move, such as
1.a6. Thus, this does not qualify as just a "Play and Win" problem.
Clearly easiest is Bain's answer 1.Qxd5 cxd5 2.a6 and the pawn cannot be
stopped.
6. (Pin) White picks off a clean pawn and ruins Black's center with
1.Nxd5 since 1…Qxd5?? allows 2.Bc4.
7. (Discovered check) Bain's intended (and easiest) solution is
1.Qxb6 and if 1…cxb6 2.Re1+ king-any 3.Rxf1 winning a piece. A student
found, verified by the computer, another winning but more complex line:
1.Qxb6 cxb6 2.Re8+ (similar is 2.Rf5+)
2…Ka7 3.Rxf8 (or 3.Bb8+ first)
when White's dual threats of Bb8+ (with possible mating threats on the
dark squares) and pushing the h-pawn give him a winning position. Give
yourself full credit for the more difficult solution. 1.Rf5 also wins,
but is a longer, convoluted forcing line, and not an "easy tactic."
8. (Stalemate) Down two pawns, Black is happy to force a draw with
1…Qxf4+ when the double attack (check and queen) forces
2.Qxf4 with
stalemate.
9. (Removal of the guard)
1…Nd4 is a combination double attack and
removal of the guard on h2. If White moves his queen anywhere aside from
the hopeless 2.Qxe7+, then 2…Nxf3+ and 3…Qh2#. Instead, 2.Nxd4 allows
the immediate 2…Qh2#. Finally, 2.hxg4 stops mate, but allows 2…Nxe2+, so
the White queen is lost. This well known pattern also appears in a trap
in the Morra Gambit and was featured as a basic pattern in my book
Back to
Basics: Tactics.
10. (Double attack)
1.Bxd5 and White has Black in trouble, as 1…exd5
2.Re7+ king-any 3.Rxb7 wins a pawn and invades with the rook. If Black
does not take, the e-pawn is hanging, as White has a double attack on b7
and e6; 1…Nd8?? allows 2.Bxa8. White has a good game after 1.Rc1, but
that's not the tactic.
11. (Skewer)
1.Ne5+ Ke6 2.Qg8+ skewers the king and queen, allowing
3.Qxb3. This is perhaps the least "obvious" pattern among the twelve, so
it may take a few extra seconds to find the forcing line that works.
12. (Discovered attack)
1…Rxd4 snares the bishop, since if 2.Qxd4
Ng4+ wins the queen.
If you scored yourself strictly and:
- achieved a Bain rating over 2000, your recognition score is very good, especially if your FIDE/USCF rating is distinctly below that.
- achieved a Bain rating well above your normal slow rating (USCF or FIDE equivalent), that's a sign that your tactical study is paying benefit.
- scored much lower than your rating, then additional basic tactics study is likely to yield good results.
- got more than ten of the twelve in fifteen seconds or less, you don't need to study more Bain. Instead, continue with basic problems in books, such as my Back to Basics: Tactics or others mentioned in Tactical Sets and Goals. Once you have mastered them as well (repetitious study not always required), promote to intermediate texts like Jeff Coakley's terrific Winning Chess Exercises for Kids.
Online, a popular tactical server seems to be
chesstempo.com. For
similarly easy problems at that site set the problem rating level to 950
(min) to 1250 (max).
Once you master easy tactics, you should notice a distinct
improvement in your play, especially if you consistently use this skill
to determine whether your own candidate moves are safe!
* Bain Tactical Rating ≈ 600 + (150 * Number of Problems Correct) – 2 * (Total Time – 90 seconds)
For example, if you get eight correct in 305 seconds:
Approximate Bain Tactical Rating ≈ 600 + (150*8) – 2*(305-90) = 600 + 1200 – 430 = 1370
Mam nadzieję, że uda wam się osiągnąć dobre wyniki w tym teście :). Jeśli chcecie zobaczyć mój komentarz, to poniżej przytaczam:
Readers' Responses [Reakcje Czytelników]
Tomasz from
Poland – I took this test and it is quite good. I did all the excercises (flawless) in
exactly four minutes (240 seconds to twelve tasks is average twenty
seconds). It means my tactical rating should be 2100. I am just 1801 ELO
rated player, but I do not play OTB chess. Anyway, I play at FICS server
in the TL (Tournament League) and STC (Slow Time Control) games. It
helps me very much. Some time ago I have
solved about 10,000 excercises (mostly rated 1000-1600) and some like
1,000 a bit harder (1600-1900). In summary: you are right – now I do not
have to worry about my tactics on the average level (up to simple shots
to 1900 level), but it is necessary to start solving much toughers ones
(I mean 1900-2200). Thank you very much for your great test and
very thought provoking ideas and articles! P.S. It was
huge hint to know that in these positions "there is
something to shoot." Most of them were extremely easy; just two
tasks were a bit harder.
(ponadto także wypowiedzi trzech innych osób):
(ponadto także wypowiedzi trzech innych osób):
Julien from
France – For what it is worth, I took the
test. I have a FIDE rating of 2250 and the test gave me 2232 (twelve
good answers for 186 seconds), pretty cool.
Paul from
Scotland – Took the test. Eleven minutes.
Eleven right answers – failed the first – going a bit too fast. Expected
to get a really really decent score for eleven right and was "dismayed"
to score 1150 way below my current rating of 1480. Thats where this
novice nook had its powerful punch! The lesson was I am not recognising
them easily enough and that this skill of instant pattern recognition
can often have practical benefit OTB in
finding the best move in a reasonable ammount of time.
GDC from the
USA – I only got 1260 (six right in approx.
six min) with an OTB rating over 1600. At Chess Tactics Server, I am
often around 1400, so that might indicate there are still gains to be
made there. I probably am a 1200 blitz player.
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