[fofvhzyk] Chessbase Christmas puzzles in FEN

Chessbase 2009 "anti-computer" Christmas puzzles in a form more amenable to feeding to computers, namely FEN.

D. Djaja 1972 White to play and draw
6R1/P2k4/r7/5N1P/r7/p7/7K/8 w - - 0 1

W.E. Rudolph, La Stratégie 1912 (William E. Rudolph of Brooklyn, NY page 184 of the March 1911 Chess Amateur) White to play and draw
3B4/1r2p3/r2p1p2/bkp1P1p1/1p1P1PPp/p1P1K2P/PPB5/8 w - - 0 1

J. Hašek, Národní Listy 1951 White to play and draw
8/1p6/1Pp2N1Q/p1Ppk2p/P3p3/3PPpPp/3K1P1P/1R6 w - - 0 1

M. Matous, 1.hm Szachy 1975 White to play and win
n2Bqk2/5p1p/Q4KP1/p7/8/8/8/8 w - - 0 1

From Vitaly Chekhover, Gatchinskaja Pravda, 1954 White to play and draw
8/8/8/5Bp1/7k/8/4pPKP/8 w - - 0 1

Vitaly Chekhover, Gatchinskaja Pravda, 1954 White to play and draw (is 1.Rh8+ Kg4 2.Rf8 c1Q 3.h3+ Kf4 4.Be6 Ke5 5.Bxf5 Qa3 6.Rf7 Qf3+ 7.Kg1 e3 8.Re7+ Kf6 9.Rxe3 Qxf5 an alternate solution?)
1R6/8/8/5bp1/4p2k/8/B1p2PKP/8 w - - 0 1

Vitaly Chekhover, Gatchinskaja Pravda, 1954 (after 1.Rh8+) Black to play and White to draw
7R/8/8/5bp1/4p2k/8/B1p2PKP/8 b - - 1 1

From a study by Smyslov White to play and win
2b1rk2/5p2/p1P5/2p2P2/2p5/7B/P7/2KR4 w - - 0 1

A. A. Troitzky, Magyar Sakkvilág 1931 White to play and win
1R4bq/p1p3p1/2p3Pb/k1P3PR/2P4P/p1K5/P7/8 w - - 0 1

A. A. Troitzky version Pal Benko, 2007 White to play and win
1R4bq/p1p3p1/2p3Pb/k1P4R/2P4P/p5P1/P7/1K6 w - - 0 1

Sandipan Chanda, 2009 White to play and win
k7/n1p1p1K1/P1p1Pp2/5P2/3R3P/pB6/2p5/2r5 w - - 0 1

Vitaly Chekhover, Parna Ty Bull 1947 White to play and draw
7r/p3k3/2p5/1pPp4/3P4/PP4P1/3P1PB1/2K5 w - - 0 1

F. Simkovitch, 3.hm L'Italia Scacchistica 1923 White to play and draw
2br4/r2pp3/8/1p1p1kN1/pP1P4/2P3R1/PP3PP1/2K5 w - - 0 1

Noam Elkies, 1991 White to play and draw
8/1p6/1p6/kPp2P1K/2P5/N1Pp4/q2P4/1N6 w - - 0 1