46b_R:NN

46b_R:NN
Compiled by whiteshark

<In the struggle between a rook and two minor pieces, there is generally equality if the side with the rook has 1 or 2 pawns more. Somewhat fewer pawns are required if both minor pieces are knights, and on the other hand 2 pawns are necessary if we are talking about the bishop pair.

The average value of the exchange (rook against a knight or a single bishop) is about 13/8 of a pawn. The advantage for the side with the rook is only 1 and 3/20 of a pawn if the opposing side has the bishop pair. If all the other minor pieces are still on the board, the value of the exchange drops by Ľ of a pawn. If, on the other hand, the queens and a pair of rooks have been exchanged off, it goes up by somewhat more than Ľ of a pawn. >

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(B43) Sicilian, Kan, 5.Nc3, 74 moves, 1-0
RR vs RNN
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(E47) Nimzo-Indian, 4.e3 O-O 5.Bd3, 39 moves, 0-1
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(B06) Robatsch, 71 moves, 1/2-1/2
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(B17) Caro-Kann, Steinitz Variation, 80 moves, 0-1
R4:NN5||
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(E73) King's Indian, 57 moves, 1-0
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R+pawns wins
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