Perft(13) [3.4 GHz Core i7-2600, 16 GB RAM]

[sje]

[d]rnbqkbnr/pp1ppppp/8/2p5/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - 0 2[/d]
The perft(11) for the above: 4,110,277,127,488,705

46 (11.5%) down, 354 (88.5%) to go.

[sje]

[d]rnbqkbnr/pp1ppppp/8/2p5/P7/8/1PPPPPPP/RNBQKBNR w KQkq - 0 2[/d]
The perft(11) for the above: 3,857,229,623,778,338

47 (11.75%) down, 355 (88.25%) to go.

After 55 days of wall time, it has taken an average of about 28 hours to produce each draft 11 record.

[sje]

[d]rnbqkbnr/pp1ppppp/8/2p5/1P6/8/P1PPPPPP/RNBQKBNR w KQkq - 0 2[/d]
The perft(11) for the above: 4,688,592,240,810,617

This is the largest draft 11 record count seen so far.

48 (12%) down, 352 (88%) to go.

[sje]

After 61 days of calculation, the run has produced about 214,000 draft 8 records. The current estimated completion date is April 12, 2012.

The machine uptime is 35 days, the time since the last power outage.

The most recent results:

Code: Select all

rnbqkbnr/ppp1p1pp/3p4/5p2/1P6/2P5/P2PPPPP/RNBQKBNR w KQkq - 0 3 9 4911250963778
rn1qkbnr/ppp1pppp/3p4/6B1/6b1/P2P4/1PP1PPPP/RN1QKBNR b KQkq - 2 3 8 651037199262
rnbq1bnr/pppkpppp/3p4/6B1/3P4/N7/PPP1PPPP/R2QKBNR b KQ - 2 3 8 400447827284
rnb1kbnr/pppqpppp/3p4/8/3P2P1/2N5/PPP1PP1P/R1BQKBNR b KQkq - 0 3 8 793049877072
rnbqkbnr/ppp1ppp1/3p4/7p/2P5/2N4N/PP1PPPPP/R1BQKB1R b KQkq - 1 3 8 439007059375
rnbq1bnr/pppkpppp/3p3B/8/3P4/N7/PPP1PPPP/R2QKBNR b KQ - 2 3 8 323637470491
rn1qkbnr/ppp1pppp/3p3B/8/6b1/P2P4/1PP1PPPP/RN1QKBNR b KQkq - 2 3 8 522591933328
rnbqkbnr/ppp1ppp1/3p4/7p/2PP4/1P6/P3PPPP/RNBQKBNR b KQkq - 0 3 8 589956144039
rnbq1bnr/pppkpppp/3p4/8/3P4/N7/PPPQPPPP/R1B1KBNR b KQ - 2 3 8 358665810177
rnbqkbnr/ppp1pp1p/3p2p1/8/P7/2P5/1PQPPPPP/RNB1KBNR b KQkq - 1 3 8 475265413169

[sje]

[d]rnbqkbnr/ppp1pppp/3p4/8/8/N7/PPPPPPPP/R1BQKBNR w KQkq - 0 2[/d]
The perft(11) for the above: 4,662,754,522,416,989

49 (12.25%) down, 351 (87.75%) to go.

[sje]

With draft 11 record number 50, the run is one eighth of the way to producing all 400 draft 11 records.
[d]rnbqkbnr/ppp1pppp/3p4/8/8/P7/1PPPPPPP/RNBQKBNR w KQkq - 0 2[/d]
The perft(11) for the above: 3,889,547,812,747,990

The average time to produce a draft 11 record is about 32 hours.

[sje]

Draft 11 record number 51:
[d]rnbqkbnr/ppp1pppp/3p4/8/8/2N5/PPPPPPPP/R1BQKBNR w KQkq - 0 2[/d]
The perft(11) for the above: 6,216,558,672,333,344

The above result is the largest draft 11 count seen so far.

51 (12.75%) down, 349 (87.25%) to go.

[Terry McCracken]

Steve, the computer you're using for this test wouldn't be a Gateway FX 6860 ef22p?

[sje]

Steve, the computer you're using for this test wouldn't be a Gateway FX 6860 ef22p?

No, it's a build-it-yourself, no-frills, no-name box with an Intel MB and a heavy duty CPU fan/heatsink.

[sje]

Draft 11 record numbers 52 and 53:

[d]rnbqkbnr/ppp1pppp/3p4/8/8/1P6/P1PPPPPP/RNBQKBNR w KQkq - 0 2[/d]
The perft(11) for the above is: 5,327,502,398,391,511

[d]rnbqkbnr/ppp1pppp/3p4/8/8/7N/PPPPPPPP/RNBQKB1R w KQkq - 0 2[/d]
The perft(11) for the above is: 4,696,710,182,966,770

53 (13.25%) down, 347 (86.75%) to go.