## "Tactics in the Queen's Gambit" by wtharvey.com

### Here are some chess puzzles from the games of Oldrich Duras.The color disk on the diagram indicates who moves first.

Solutions are between the brackets under each puzzle.
Drag your mouse from one bracket to the other.

a)
Rudolf Loman vs Oldrich Duras, Hilversum, 1903
5bk1/2p3p1/5p1p/1pB5/4N3/1r3R2/5PKP/8 b - - 0 1
[ ...Rxf3 if Kxf3 f5 ]

b)
Oldrich Duras vs R Kieseritzky, Barmen, 1905
r2qk2r/pb1nbppp/1p2n3/1N1p4/3Q1B2/8/PPPN1PPP/2K1RB1R w kq - 0 1
[ Rxe6 if fxe6 Qxg7 Rf8 Nc7+ ]

c)
White mates in 5.
Oldrich Duras vs Dawid Janowski, Nuernberg, 1906
8/1p2R1pk/pq4p1/2p1p2n/2P1P3/1P2PN1Q/1P2K3/8 w - - 0 1
[ Ng5+ Kh6 Nf7+ Kh7 Re8 ]

d)
Milan Vidmar Sr vs Oldrich Duras, Nuernberg, 1906
r5k1/1p3pp1/p1p5/3pN2q/3PrP2/6Pb/PP1Q1P1P/2R3KR b - - 0 1
[ ...Rxe5 if fxe5 Qf3 mates ]

e)
White mates in 3.
r5r1/p1q2p1k/1p1R2pB/3pP3/6bQ/2p5/P1P1NPPP/6K1 w - - 0 1
[ Bf8+ if Bh5 Qxh5+ ]

1e)
mate in 3

Oldrich Duras Puzzles, Part II.
The color disk on the diagram indicates who moves first.
a)
Oldrich Duras vs Leopold Loewy, Vienna, 1907
r2qnr1k/1ppb2pp/p1np4/4p3/4P3/1B1P1N1P/PPP3P1/RN2QRK1 w - - 0 1
[ Nxe5 if Rxf1+ Qxf1 Qe7 Nxd7 ]

b)
F I Duz-Hotimirsky vs Oldrich Duras, Carlsbad, 1907
r2qkb1r/p4ppp/2n1pnb1/1p1p4/2pP2PN/1PP1P2P/P3BP2/RNBQK2R b KQkq - 0 1
[ ...Bxb1 Rxb1 Ne4 ]

c)
Oldrich Duras vs Paul Leonhardt, Prague, 1908
1k1r4/1p1q2b1/pQpN3p/2P5/3p1p2/8/PP3PPP/4R1K1 w - - 0 1
[ Nxb7 ]

d)
White mates in 6.
Oldrich Duras vs Rudolf Swiderski, Vienna, 1908
q4r1k/5r1p/p4p1B/2p1pb2/2Pp2R1/6QP/PP6/2K3R1 w - - 0 1
[ Bg7+ Rxg7 Rxg7 if Bg6 Rxh7+ Kxh7 Qxg6+ ]

e)
Black mates in 5.
Eugene Znosko-Borovsky vs Oldrich Duras, St. Petersburg, 1909
r3r1k1/1p3ppp/2p2b2/p7/8/Q1BP2Pq/PPP4P/4RR1K b - - 0 1
[ ...Re2 ]

2b)
F I Duz-Hotimirsky vs Oldrich Duras

Oldrich Duras Puzzles, Part III.
The color disk on the diagram indicates who moves first.
a)
Black mates in 4.
Johannes Esser vs Oldrich Duras, Amsterdam, 1910
2rr1k2/5pp1/p2bp3/1p1B4/1PnP2Pq/P1B2P2/2Q1N1P1/R3R1K1 b - - 0 1
[ ...Bh2+ Kh1 Bg3+ Kg1 Bf2+ Kf1 Ne3# ]

b)
White mates in 3.
Oldrich Duras vs Amos Burn, San Sebastian, 1911
8/p3Q2p/6pk/1N6/4nP2/7P/P5PK/3rr3 w - - 0 1
[ Qf8+ Kh5 g4+ ]

c)
Oldrich Duras vs Erich Cohn, Carlsbad, 1911
2R5/4Q3/5pk1/6n1/8/1P3PPq/r7/6K1 w - - 0 1
[ Rg8+ if Kf5 Rxg5+ Kxg5 Qg7+ Kf5 Qg7+ ]

d)
Oldrich Duras vs Frederick Yates, London, 1911
5knR/4q1r1/pp1r2p1/2N1p3/1Q1P1pR1/P4P2/1P4P1/1K6 w - - 0 1
[ dxe5 if Rc6 Rxf4+ Ke8 Qc4 or if Rd1+ Kc2 bxc5 Qxf4+ ]

e)
Black mates in 2.
Alexander Flamberg vs Oldrich Duras, Opatija, 1912
r1b3k1/ppp3pp/8/3pB3/1P1P4/3K1P2/PP1n1q1P/R2Q3R b - - 0 1
[ ...Bf5+ Kc3 Qe3# ]

f)
Black mates in 6.
Efim Bogoljubow vs Oldrich Duras, Mannheim, 1914
4r3/p4k2/Pp3p2/5N2/1B3b2/3r3n/1PR3K1/5R2 b - - 0 1
[ ...Rg8+ if Kh1 Nf2+ Rfxf2 Rd1+ ]

g)
Walter John vs Oldrich Duras, Mannheim, 1914
6k1/pp1qnr1p/3b2n1/3p4/3PpB2/2P3PP/PP4Q1/R3RNK1 b - - 0 1
[ ...Nxf4 if gxf4 Rg7 Ng3 Bxf4 ]

3c)
Oldrich Duras vs Erich Cohn

Other Austrian GMs
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