Products & services

Our products and services. All prices are in Indian rupees (INR).

Kuikma Chess

Chess training by Sigmoid Technologies: find the best move in real positions, scored by Stockfish and explained by an AI coach.

Free plan

₹0

5 training positions a day from our Stockfish-analysed library
See the best move and the top engine lines after you play
Rule-based coaching notes and the square-control map
Analysis board for your own study (no live engine)

Start free

Pro · 12 months

₹999 one-time · 365 days

Live Stockfish analysis of any position, up to depth 26 (300 a day)
10 full-game Stockfish reviews a day
AI coach on every move, and AI explanations of the best move
Up to 200 training positions a day
Import Lichess / Chess.com games, and 50 new positions a day from your own FEN / PGN
HTML reports and more collections
No auto-renewal

Buy Pro · 12 months

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The Viveka Method (book)

Our book on choosing the better chess move: the formula, the evidence behind it, and 100 annotated positions. By Sigmoid Vedanta Technologies.

Digital edition

₹399 one-time

PDF to download and keep, plus the web edition. Read on any phone, tablet or computer.

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Print edition

₹899 one-time · shipping in India included

Paperback shipped anywhere in India (shipping included), plus the digital edition while it is on its way.

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Print + 12 months Pro

₹1,199 one-time · shipping in India included

The paperback and the digital edition, plus a year of Kuikma Pro to drill the method on live positions.

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Free with every account: the Viveka calculator and 10 Viveka drills a day.

All prices in Indian rupees (INR). Products and services are offered by Sigmoid Vedanta Technologies, Cheruvickal, Sreekaryam. Subject to the jurisdiction of Thiruvananthapuram, Kerala.