Starting position #341
Back-rank setup: NRBBKQRN
SP-341 · ThroneScout — King in the middle of the rank, with a knight already committed to the corner.
Move the pieces right on the board — full Chess960 rules, castle by dropping the king on the rook.
Position features
The king starts on e1, the rooks on b1 and g1, the queen on f1.
Castling ends where it always does: king to g1 and rook to f1 on the short side, king to c1 and rook to d1 on the long one.
The bishops stand on c1 and d1; their long diagonals reach h6 and h5 once the d- and e-pawns step aside.
The second rank carries 2 pawns with no defender at all: a2, h2.
The setup belongs to the ThroneScout family; read right to left it becomes position 330.
The engine's main line opens with f4.
Every sentence here is computed from the setup itself and can be checked on the board.
Balance
MBI 34 Morozov Balance Index: 34 of 100 — class C — noticeable edge.
- Engine evaluation of the starting position: +31 centipawns for White (depth 43, 400 000 000 nodes).
- Rank 641 of 960 by balance — 1 is the most balanced start.
- Balance band M — moderate edge · dynamics along the play-out: stable
- Evaluation along the engine's main line (60 half-moves): +31 → +10 → +9 → +8
Position facts
- Mirror twin: position #330
- The king starts on e, the rooks on b and g
- It becomes the daily position in 1233 days
Puzzles from this position
- Attack on the uncastled king: queen to c4 (e4) — Chess960 specifics · 780
- Attack on the uncastled king: pawn to e5 (f4·15) — Chess960 specifics · 780
- Attack on the uncastled king: rook to b8 (b1·6) — Chess960 specifics · 780
- Winning blow: queen to b1 (h7) — Chess960 specifics · 920
- Attack on the uncastled king: pawn to d3 (d2·3) — Chess960 specifics · 1250
- Winning blow: queen to g6 (h5·7) — Chess960 specifics · 1290
- Mate in 2: queen to d8 (c8·2) — Chess960 specifics · 1450
- Winning blow: rook to e3 (g3·3) — Chess960 specifics · 1650
- Winning blow: bishop to h6 (g5·3) — Chess960 specifics · 1870
- Chess960 tactic on g7 (g2·2) — Chess960 specifics · 2400
This position appears in course day 28
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Commentary
Castling is ordinary in both directions from e1, with the queen on f1 next to her king. Both knights start in a corner, a1 and h1, each with a single move: b3 and g3. The bishops stand side by side on c1 and d1, one on each colour. The pawns on a2 and h2 both begin with no defender at all. The engine's line opens f4 f5, then Ng3 Qf7 c4 O-O.
Written from the measured facts above and checked against the board before publishing. All 960 positions have one.