London Breakout self-test, 2026-10-21T11:35:17.077Z

1. Hand-worked days (Tuesday 7 January 2020, London = New York + 5 h)
A. range 1.2990-1.3010; 07:05 high 1.3011 (open 1.3005) -> buy at 1.3011, stop 1.2989, R 22 pips; 08:00 high 1.3040; 16:00 opens at 1.3020
  [ok] LB-1R: target 1.3033, net 0.9318 R (22 - 1.5 pips over 22)
  [ok] LB-2R: target 1.3055 not reached, out at the 16:00 open 1.3020, net 0.3409 R
  [ok] LB-CLOSE: the same 16:00 exit
  [ok] reference identical (3 variants)
B. one minute (07:00, open 1.3005) reaches both levels: the buy level (6 pips away) is nearer than the sell level (16 pips) -> buy, stopped in the same minute
  [ok] buy stopped at 1.2989: net -1.0682 R
  [ok] reference identical
C. sell: 09:30 opens at 1.2985, below the sell level 1.2989 (a gap) -> sold at 1.2985, stop 1.3011, R 26 pips; 11:00 low 1.2950 (1R target 1.2959)
  [ok] sold at the open 1.2985, target 1.2959 (a level beyond a later minute's open fills at the open: here 1.2970 opens above it, so at 1.2959)
  [ok] reference identical
D. no trade: a touch at 10:01; a range with only 299 minutes; a Saturday
  [ok] no trade in all three cases
  [ok] reference: no trade either
E. clock: London = New York + 4 h between the US and UK changes (10 March 2020, 2 November 2007), + 5 h otherwise (7 January and 1 April 2020; 31 October and 1 November 2005, when both changed on the same Sunday)
  [ok] offsets 240, 300, 300, 240 minutes

2. Real data: our London clock against the time-zone database, every hour of the data
  [ok] 141014 trading hours checked, 0 differ

3. Real data: engine against the independent reference
  8297247 minutes 2004-01-01 00:05 .. 2026-09-28 15:46 New York; 5278 breakout days
  [ok] LB-1R: 5278 trades, reference 5278, identical
  [ok] LB-2R: 5278 trades, reference 5278, identical
  [ok] LB-CLOSE: 5278 trades, reference 5278, identical

4. Control at offset 0
  [ok] LB-1R: 5278 control trades at real entry minutes with the real direction and R; 0 skipped only while a control trade (filled at the minute's open) was still open
  [ok] LB-2R: 5278 control trades at real entry minutes with the real direction and R; 0 skipped only while a control trade (filled at the minute's open) was still open
  [ok] LB-CLOSE: 5278 control trades at real entry minutes with the real direction and R; 0 skipped only while a control trade (filled at the minute's open) was still open

PASSED