Not all Chess960 positions are equally complex

White starts with a lead; fans feud over 'memory wars' and the best starting lineup

TLDR: A new study says most Chess960 setups give White a small, consistent edge, and some openings pile decision stress on one side. Commenters battle over whether this is real skill or just memorization warfare, debating fairness, prep, and why normal chess isn’t the most balanced.

White gets a head start, says a new analysis of all 960 Chess960 openings, with the chess engine Stockfish giving White about +0.30 pawns—translation: a small but solid edge. The authors also score how hard the first moves feel, finding that some start positions dump the decision stress on White, others on Black. Cue the comment brawl. One camp cheers the result, with __s quipping that the hardest game to win is the one you’re already winning, and pointing to classic chess’s “aimed at the center” vibe as why White grabs the initiative. The plot twist? The “default” setup we all know isn’t the most fair: standard chess sits unusually lopsided, while position #198 is the zen master of balance and #226 is chaos mode. That set off jokes about “white privilege in chess” and opening astrology (“what’s your position rising?”), but the real heat was the memory wars. ummonk argues the study defines complexity backwards: White has multiple good moves, so you memorize one, while Black must memorize counterpunches to everything. thatfunkymunki marvels that the most balanced layout looks a lot like normal chess—just reshuffled. And NickC25 drops a spicy home rule: swap bishops and knights and your beloved 1.e4 becomes a liability. For bonus drama, firasd brings receipts, analyzing the romantic Opera Game with engine multi-lines here, showing even classics hide messy options. TL;DR: the board’s the same, but the vibe is wildly different depending on the lineup.

Key Points

  • Stockfish analysis across all 960 Chess960 starting positions finds an average first-move advantage for White of +0.30 ± 0.14 pawns.
  • An information-based measure S(n) is introduced to quantify cumulative decision difficulty in the opening, decomposed into S_W and S_B.
  • Total complexity S_tot varies by a factor of three across positions; decision asymmetry A ranges from −2.5 to +1.8 bits.
  • Mean asymmetry ⟨A⟩ = −0.25 bits suggests White generally faces slightly harder early decisions.
  • Standard chess (#518, RNBQKBNR) shows high asymmetry (91st percentile); #226 (BNRQKBNR) is most complex, and #198 (QNBRKBNR) is most balanced.

Hottest takes

"the hardest game is to win is a won game" — __s
"Because white usually has several good moves at every point, they can just memorize one of them, while black needs to memorize how they’ll respond" — ummonk
"turns normally-sound opening moves like 1.d4 and 1.e4 into liabilities" — NickC25
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