30...Qe7?
A miscalculation. Black should have continued with the logical move 30...Nb5.
31.Ba6! Nb5
A) 31...Rc7 32.Rac1! —->Ba5 +/-
B) 31...Q×c5+ 32.Bd4 +-
32.Be1 Rd7 33.Bc8 Q×c5+ 34.Qf2 Q×f2+ 35.K×f2 +-

🔸Capablanca Memorial 2018
🔸Round 4
⚪️Anton Guijarro,David (2646)
⚫️Shankland,Samuel (2671)
🔸½-½

8.h4!?
Anton's interesting novelty in the Symmetrical English opening.
The idea behind the move is to discourage Black from playing g6 and Bg7.
8...a6 9.Be2 e5 10.Qb3 b5 11.Qd5 f6 12.a4 b4 13.Bb2

🔸Capablanca Memorial 2018
🔸Round 4
⚪️Anton Guijarro,David (2646)
⚫️Shankland,Samuel (2671)
🔸½-½

13...Qc8!
Shankland shows his strong positional sense. He has prepared to cover the important a2-g8 diagonal.
14.Bc4 Nd8! 15.Qd3 Be6

⚪️#437 (Strategy-White to Move)
🔸Salov,V
🔸Lautier,J
🔸Wijk aan Zee, 1991

Despite its solid look, the position has a subtle element of tactic grounded in positional evaluation. After the strong 22.Rd6! , a series of forced exchanges ensues which lead to a double pawn for black on the e-file. The final straw comes as white grabs the pawn on a7 leaving black with a problem of farther passed pawn on the a-file. furthermore, the knight on h5 and the bishop on g7 are passive and black's pawn structure is permanently damaged. All these give white decisive advantage in the endgame, which Salov gradually converted into a full point.
22...Rxd6 (This is forced due to 22...Nf8 23.Ng5! and all of Rxd8, Qxf7, Nxf7, and Bd7 are threatened. White wins.)
23.cxd6 Qxd6 24.Bxe6 Qxe6 (If 24...fxe6, then 25.Bxa7)
25.Qxe6 fxe6 26.Bxa7+-.

⚪️#438 (Strategy-White to Move)
🔸Salov,V
🔸Gurevich,M
🔸Reggio Emilia, 1992

This position comes under the 90% rule. Remember that the move you want to play for positional reasons normally has a 90% chance of working tactically. Of course, that does not count for sacrifices and other brutal approaches as often as it does in quiet positions, but it is still worth investigating if the move you want to play for positional reasons works tactically. Here it does. White is all set up for b2-b4-b5 but cannot protect his c-pawn with moves other than b2-b3. So it is now or never, as this will not change.
12.b4! Bxc4 A very risky decision. It is not difficult to understand what Black was thinking: if White is allowed to execute his plan at least I should bag a pawn. Instead 12...Ne4 13.Nxe4 fxe4 14.Nxe6 Qxe6 15.Qc2 Rfe8 16.Be3 Qc7 17.Rfd1 leads to a comfortable advantage for White.
13.b5! cxb5 14.Ndxb5 Rd8 15.Ba3.

⚫️#439 (Strategy-Black to Move)
🔸Salov,V
🔸Van der Sterren,P
🔸European Cup, Hilversum, 1993

Unity Chess Multiple Choice 439

C: b6 – 5
👍👍👍👍👍👍👍 71%

A: a4 – 2
👍👍👍 29%

B: Bh4
▫️ 0%

👥 7 people voted so far.

⚪️#440 (Strategy-White to Move)
🔸Salov,V
🔸Glek,I
🔸Wijk aan Zee, 1997

Unity Chess Multiple Choice 440
anonymous poll

A: g4 – 8
👍👍👍👍👍👍👍 73%

C: Qc3 – 2
👍👍 18%

B: Kb1 – 1
👍 9%

👥 11 people voted so far.

☑️ #Gerzadowicz_chess_quotes_001

🔘 Stephan Gerzadowicz
🔘 Correspondence Chess Master

@unitychess

☑️ #about Gerzadowicz

🔘 Stephan Gerzadowicz
🔘 Correspondence Chess Master

♦️ Stephan spent his first 53 years in rural Massachusetts where he ran nine marathons, wrote five books, and became a Correspondence Chess Master. He played in five USCF Absolute Championships and one USCCC. He has ranked as high as #10 on the USCF Top 50 List. Stephan Gerzadowicz
He has been president of both the Massachusetts and the New England Chess Associations. While in Massachusetts he inspected snow storms and rain storms and otherwise emulated Henry David Thoreau.
♦️In 1998, Stephan relocated to Princeton, NJ. There he taught chess as part of the regular curriculum in a small elementary school, his students winning numerous New Jersey Scholastic Championships.

♦️"Mr. G" left Princeton after three schools years there. Since then he has lived and taught in New York, Florida, Tennessee and Texas. He has been a tournament director at The Denker Tournament of High School Champions, The U. S. Blind Championship, the Tennessee Open Championship, and the Final Four of College Chess.

@unitychess

Jackson Showalter, US Chess Champion 1890-92 and 1906-09.

@UnityChess

JACKSON WHIPPS SHOWALTER

(born Feb-05-1859, died Feb-05-1935, 76 years old) United States of America

Jackson Whipps Showalter held the title Chess Champion of the United States on several occasions from the 1890s to 1909.
He played matches against Max Judd in 1890 (+3 -7) and 1891-2 (+7 -4 =3), Emanuel Lasker in 1892 (+2 -6 =2), Samuel Lipschutz in 1892 (+1 -7 =7), Jacob C Halpern in 1893-4 (+5 -3 =1), two against Albert Hodges (+7 -6 =4) and (-5 +3 =1), and Adolf Albin (+10 -7=8) in 1894. Following Hodges' retirement, he definitely established a claim to the title by defeating Lipschutz in 1895 (+7 -4 =3).

He defended this title by defeating Emil Kemeny (+7 -4 =4) and John Finan Barry (+7 -2 =4) in successive matches (1896), before losing twice to Harry Nelson Pillsbury in both the Pillsbury - Showalter (1897) (+8-10=3) and Pillsbury - Showalter (1898) (+2-7=3) matches.

Following Pillsbury's death in 1906, he was again considered US Champion until being defeated by Frank James Marshall (+2 -7 =3) in 1909.

He was a regular participant in major international events from 1893 to 1904, scoring wins over World Champions Wilhelm Steinitz and Emanuel Lasker among other notables.

Wikipedia article: Jackson Showalter

http://en.wikipedia.org/wiki/Jackson_Showalter