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Bear chess

From EverybodyWiki Bios & Wiki

The initial position of the pieces. Bears are on the sides of kings and queens

Bear chess.[1][2][3] — 10x10 chess variant, proposed by Mikhail Sosnovsky in 1985 in Kalinin[4][5].


Mikhail Sosnovsky in 1985 created a variant of chess with a new "bear" piece. In fairy chess, this piece is known as a Squirrel. In Tver, there were two clubs working on this version of 100-cell chess [5] [6]. In the USSR, there were a large number of publications on this type of chess, and the main distribution of "bear chess" was obtained in Central Russia [3]

Game rules[edit]

A hundred-cell board is used. As in orthodox chess, Arabic numerals are used to denote contours, and Latin letters (a, b, c, d, e, f, g, h, i, j) are used for verticals. Field a1 is black. In addition to the usual chess pieces (king, queen, rook, bishop, knight and pawn), a new piece called "bear" has been introduced into the game. This piece is located on squares d1, g1 (for white) and d10, g10 (for black), that is, next to the king and queen. The bear knows how to jump over his own and others' pieces. This piece moves two squares vertically, horizontally and diagonally, as well as a knight. On the first move, the pawns can move one, two or three squares based on the player's choice. To castling, the king moves two squares to the left or right side, and the corresponding rook is moved across the king. All other rules (castling conditions, capturing pawns on the passage, promoting pawns, etc.) remain the same as in orthodox chess.[1][4][5]


  1. 1.0 1.1 About Bear chess on
  2. About Bear chess on
  3. 3.0 3.1 Chapter 15, New pieces (2) : Pieces with limited range (pages 128—137) from The Classified Encyclopedia of Chess Variants (D. B. Pritchard, ISBN 978-0-9555168-0-1, 2007).
  4. 4.0 4.1 «Медвежьи шахматы могут подвинуть тверского козла» — article in Komsomolskaya Pravda (in Russian)
  5. 5.0 5.1 5.2 Шах и мат, скептики: западные шахматисты оценили тверской апгрейд — article in Moskovskij Komsomolets (in Russian)
  6. "В Твери хотят возродить уникальные «медвежьи шахматы»" - article in Karavan. Yarmarka (in Russian)

External links[edit]

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