The Retrograde Analysis Corner
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No. 9, Jan-Mar 2000
R0038 -
StrateGems 9, Jan-Mar 2000
![[rkBKRnQB/pPpppppB/6p1/1N6/8/2p5/P1PP1PP1/8]](R0038.gif)
13+11. Which piece (other than bK) last visited b8?
[rkBKRnQB/pPpppppB/6p1/1N6/8/2p5/P1PP1PP1/8]
R0039 -
StrateGems 9, Jan-Mar 2000
![[8/7P/8/4P3/k7/8/8/8]](R0039.gif)
2+1. Add wK, wR, 2 wN, bB and 3bP for an Illegal cluster (Circe)
[8/7P/8/4P3/k7/8/8/8]
P0050 -
StrateGems 9, Jan-Mar 2000
![[rnbqkb2/1rpppp2/2r4n/3r3p/P3R3/N4R2/2PPPPR1/2BQKBNR]](P0050.gif)
15+15. Proof game in 17.0 moves
[rnbqkb2/1rpppp2/2r4n/3r3p/P3R3/N4R2/2PPPPR1/2BQKBNR]
P0051 -
StrateGems 9, Jan-Mar 2000
![[2b1kbnr/p1p1pppp/1pn1Qr2/3p3B/q5P1/4PN1R/PPPP1P1P/RNB4K]](P0051.gif)
16+16. Proof game in 12.0 moves
[2b1kbnr/p1p1pppp/1pn1Qr2/3p3B/q5P1/4PN1R/PPPP1P1P/RNB4K]
P0052 -
StrateGems 9, Jan-Mar 2000
![[rnbqkb1r/pppBpppp/3B4/7P/3Nn1R1/4P3/PPPNKPP1/3Q3R]](P0052.gif)
15+15. Proof game in 17.5 moves
[rnbqkb1r/pppBpppp/3B4/7P/3Nn1R1/4P3/PPPNKPP1/3Q3R]
P0053 -
StrateGems 9, Jan-Mar 2000
![[rnb2bnr/pppp2pp/8/5p1k/4p3/5q2/PPPPPPPP/RNBQKB1R]](P0053.gif)
15+16. Proof game in 8.0 moves
[rnb2bnr/pppp2pp/8/5p1k/4p3/5q2/PPPPPPPP/RNBQKB1R]