Bai tap one move

No. 1

1... ?

Đen đi thắng !

Back 1 - Lui 1 Forward 1 1... Hd3+ 2. Vxd3 Txc6+ black has a moderate advantage 0-1 [02 A 01]

No. 2

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Xc7! Hxh5 2. Xe7+ Vf8 3. Xxb7+ Ve8 4. Xe7+ Vf8 5. Xxh7+ Ve8 6. Xxh5 white has a decisive advantage 1-0 [02 A 02]

No. 3

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Xxh7! Txh3 2. Xxg7+ Vh8 3. Xxf7+ Vg8 3... Tf6 4. Txf6+ Vg8 5. Xxc7 white has a decisive advantage 4. Xg7+ Vh8 5. Xgxe7+ Vg8 6. Xxc7 1-0 [02 A 03]

No. 4

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Hxg7+ Vxg7 2. Mxd7+ Vg8 3. Mf6+ Vf7 4. Md5+ white has a decisive advantage 1-0 [02 A 04]

No. 5

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Hd8+ Vxd8 2. Tg5+ Ve8 3. Xd8# 1-0 [02 A 05]

No. 6

1... ?

Đen đi thắng !

Back 1 - Lui 1 Forward 1 1... Hg2+! 2. Vxg2 Mf4+ 3. Vg1 Mh3# 0-1 [02 A 06]

No. 7

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Hd5+ Vxf6 1... Ve8 2. He6 white has a decisive advantage 2. Hd8 Xg8 3. e8=M+! 1-0 [02 A 07]

No. 8

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Hd8+ Vxd8 2. Tg5+ Vc7 2... Ve8 3. Xd8# 3. Td8# 1-0 [02 A 08]

No. 9

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Hg7+ Vxg7 2. Mf5+ Vg8 3. Mh6# 1-0 [02 A 09]

No. 10

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Hd8+ Vxd8 2. Me6+ Ve8 3. Xd8# 1-0 [02 A 10]

No. 11

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Mg6+! Xxg6 2. Xxe7 Mxf5 3. Xhxh7# 1-0 [02 A 11]

No. 12

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Te5! Hd8 1... Hxb7? 2. Txf6# 2. Hxa8 white has a decisive advantage 1-0 [02 A 12]

No. 13

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Md7 Hxh5 1... gxh5 2. Mxf6+ white has a decisive advantage 1... Tg5 2. Hg4 2. Mxf6+ 1-0 [02 A 13]

No. 14

1... ?

Đen đi thắng !

Back 1 - Lui 1 Forward 1 1... Xd3! 2. Hf6 2. Hf4 Hc5+ 3. Te3 Xd2+ 2. Te3 Hb2+ 3. He2 Hxe2+ 4. Vxe2 Xxc3 2... Xe2+ 3. Vxe2 Xd6+ black has a decisive advantage 0-1 [02 B 01]

No. 15

1... ?

Đen đi thắng !

Back 1 - Lui 1 Forward 1 1... Hxf1+ 2. Vxf1 Md2+ 3. Vg1 Xe1+ 4. Vh2 Mf1+ 5. Vg1 Me3+ 6. Vh2 Mxf5 black has a decisive advantage 0-1 [02 B 02]

No. 16

1... ?

Đen đi thắng !

Back 1 - Lui 1 Forward 1 1... Hxg2+! 2. Vxg2 2. Mxg2 Txf4+ 3. Xxf4 Xxg2+ 4. Vh1 Xf2+ 2... Txe3+ 3. Vg3 Txf4+ 4. Xxf4 Xg2+ 5. Vh4 Txe6 black has a decisive advantage 0-1 [02 B 03]

No. 17

1... ?

Đen đi thắng !

Back 1 - Lui 1 Forward 1 1... Hd6+ 2. Xxd6 Xxg2+ 3. Vh1 Xxa2+ 4. Vg1 Xxa1+ 5. Vf2 cxd6 black has a decisive advantage 0-1 [02 B 04]

No. 18

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Hd8+! Vxd8 1... Vf7 2. e6+ Vxe6 (2... Txe6 3. Me5#) (2... Vg6 3. Mf4+ Vh6 4. Hh4#) 3. Mf4+ Vf7 4. Me5# 2. Tg5+ Ve8 3. Xd8+ Vf7 4. e6+ Vxe6 4... Txe6 5. Me5# 4... Vg6 5. Mf4# 5. Mf4+ Vf7 6. Me5# 1-0 [02 B 05]

No. 19

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Hh7+ Vf8 2. Hh8+ Ve7 3. Mf5+ exf5 4. Tc5# 1-0 [02 B 06]

No. 20

1. ?

Traéng ñi !

Back 1 - Lui 1 Forward 1 1. Mb5 cxb5 1... He7 2. Mxd6 Xxd6 3. Mxe6 2. Hxc7+ Txc7 3. Xxc7 Vxc7 4. Mxe6+ Vd7 5. Mxd8 Xxd8 6. Txb5+ Ve6 7. Tc7 white has a moderate advantage 1-0 [02 B 07]

No. 21

1... ?

Đen đi thắng !

Back 1 - Lui 1 Forward 1 1... Mxg3! 2. Txd5 2. e4 Me2+ 3. Vh1 He5 4. Hd2 Mf4 black has a decisive advantage 2... Mxe2+ 3. Vh1 Txd5+ 4. f3 Mxc1 0-1 [02 B 08]

No. 22

1... ?

Đen đi thắng !

Back 1 - Lui 1 Forward 1 1... Xxf1+ 1... Mh4 black has a decisive advantage 2. Txf1 Hc2 3. Tg2 Hd1+ 4. Tf1 Hxf1+ 5. Mg1 Mf2# 0-1 [02 B 11]

No. 23

1... ?

Đen đi thắng !

Back 1 - Lui 1 Forward 1 1... Xf2+ 2. Vg1 2. Ve1 Tc3+ 3. Vd1 Xd2+ 4. Ve1 Xd5+ 2... Td4! 3. Xc4 3. Xd5 e2! 4. Mxe2 Te3!! 5. Mf4 Xd2+ 6. Vf1 Txf4 3... Xc2!! 4. Xxc2 4. Xxd4 Xxc1+ 5. Vg2 e2 black has a decisive advantage 4... e2+ 0-1 [02 B 12]

No. 24

1... ?

Đen đi thắng !

Back 1 - Lui 1 Forward 1 1... Tf4 2. Xxf4 Hh5# 0-1 [02 C 01]

No. 25

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Hxe8+ Vxe8 2. Md4+ Vf8 2... Vd8 3. Xg8# 2... He5 3. Xg8+ Ve7 4. Mf5# 3. Xe8+!! Vxe8 4. Xg8+ Ve7 5. Mf5# 1-0 [02 C 02]

No. 26

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Hxb7+!! Vxb7 2. Txd7+ Va8 2... Va6 3. Tc8+ Va5 4. Mc4+ Va4 5. Xb4# 3. Xxb8+! Vxb8 4. Xb1+ Va8 5. Tc6# 1-0 [02 C 05]

No. 27

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Xxb7!! Hxc4 1... Hxb7 2. Txc6 Hb6 3. Tb5+ Vb7 4. He4+ Vc8 5. Ha8+ Hb8 6. Hxb8# 2. Xc7+ Vb8 3. Xxc6+ Vb7 3... Va8 4. Xc8# 3... Xxd6 4. Xb1+ Va8 5. Xc8# 4. Xb1+ Va8 5. Xc8# 1-0 [02 C 06]

No. 28

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Xde1!! Xxb7 2. Txd5+ white has a decisive advantage 1-0 [02 C 07]

No. 29

1. ?

Traéng ñi !

Back 1 - Lui 1 Forward 1 1. Xxd5! Hxd5? 1... Hc6 white is slightly better 1... Hf4 2. Mf6+!! gxf6 3. Te6+ white has a decisive advantage 1-0 [02 C 08]

No. 30

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Hxg6+ Vxg6 1... Vh8 2. Me5 Mf8 3. Mf7+ Vg8 4. Mxh6+ Vh8 5. Hh5 white has a decisive advantage Txh6 6. Hxh6+ Mh7 (6... Vg8 7. Mh5) 7. Mh5 Xf8 8. Tg5 Xf7 9. Txh7 Xxh7 10. Tf6+ Vg8 11. Hg6+ Vf8 12. Xf2 Xf7 13. Hh6+ Vg8 14. Hh8# 1... Vg8 2. Mf5 Mf8 3. Mxh6+ Vh8 4. Mf4 2. Me5+ Vf6 3. Xf2+! Ve7 3... Vxe5 4. Xf5# 4. Mc6+ Hxc6 5. Tg5# 1-0 [02 C 09]

No. 31

1... ?

Đen đi thắng !

Back 1 - Lui 1 Forward 1 1... Th3 1... Tc5+ 2. Hxa8 Tc5+ 3. Vh1 3. Vf1 Hf2# 3... Txg2+ 4. Vxg2 Hg4+ 5. Vf1 5. Vh1 Hf3# 5... Hf3+ 6. Ve1 Hf2# 0-1 [02 C 10]

No. 32

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Txe6 Xxd1 2. Ha8+ Vh7 3. Txf7 white has a decisive advantage 1-0 [02 C 11]

No. 33

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Hd8+ Vxd8 2. Mxe6+ Ve7 2... Vc8 3. Xd8# 2... Ve8 3. Mxg7+ Txg7 (3... Ve7 4. Tg5#) 4. Tg5+ Te5 5. Xd8# 3. Tg5+ f6 3... Ve8 4. Xd8# 4. Md8+! Xe3 5. Xxe3+ He6 6. Xxe6# 1-0 [02 D 01]

No. 34

1... ?

Ñen ñi !

Back 1 - Lui 1 Forward 1 1... Xxf2! 2. Xxc4? 2. Xxf2 Txf2+ 3. Vh1 position is unclear (3. Vxf2 Md3+) 2... Xf3+ 3. Xf2 3. Xxc5 Xxf1# 3... Txf2+ 4. Vh1 4. Vf1 Txc4# 4... Xxh3 5. Xxb4 Xd3 black has a decisive advantage 0-1 [02 D 02]

No. 35

1... ?

Đen đi thắng !

Back 1 - Lui 1 Forward 1 1... e2 2. Mg3 Xxg3! 3. hxg3 Hf2 4. Hf5+ 4. Xg1 e1=H black has a decisive advantage 4... Vb8 5. Hxh3 Hxf3+ 6. Vh2 Hf2+ 7. Vh1 Ta5 0-1 [02 D 03]

No. 36

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Xc5+ Xc7 1... Vb8 2. Txb7! Xxb7 (2... Hxg3+ 3. Tg2+ Xb7 4. Xxb7+ Va8 5. fxg3) 3. Xxb7+ Vxb7 (3... Va8 4. Hxf4 Mxf4 5. Xcc7) 4. Hg2+ Vb8 5. Xb5+ Vc7 6. Hb7+ Vd6 7. Xd5# 2. Txb7+ Vb8 2... Vd7 3. Xxc7+ Hxc7 4. Td5 white has a decisive advantage 3. Ta6+ Va8 4. Hg2+ 1-0 [02 D 04]

No. 37

1... ?

Đen đi thắng !

Back 1 - Lui 1 Forward 1 1... Xxf3 2. Txf3 Hxf3+ 3. Vxf3 Mxd4+ 3... Me5+?? 4. Ve2 white has a moderate advantage 4. Vg4 Tc8+ 5. Vh4 Mf3# 0-1 [02 D 05]

No. 38

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Hxf6 Xxd1 1... gxf6 2. Te5+ Vh8 3. Txf6# 2. Hxg7+ Vxg7 3. Te5+ Vh6 4. Tg7+ Vh5 5. Te2+ Vh4 6. Tf6# 1-0 [02 D 06]

No. 39

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Mxg6+ fxg6 2. Hg8+!! Vxg8 3. Me7+ Vf8 4. Mxg6# 1-0 [02 D 07]

No. 40

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Td3!! 1. Mh5! 1... Xxe1 1... Me5 2. Mh5 gxh5 3. Txh7+ Vh8 4. Txc2+ white has a decisive advantage 2. Xxe1 Mxe1 3. Mh5 gxh5 4. Txh7+ Vh8 5. Tg6+ Vg8 6. Hh7+ Vf8 7. Hxf7# 1-0 [02 D 08]

No. 41

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Te5! Xxd1 2. Hc8+ Vh7 3. Xxh6+ Vxh6 3... gxh6 4. Hh8+ Vg6 5. Hf6+ Vh5 6. Hf5# 4. Hxh3+ 4. Hh8+ Vg6 5. Hxg7+ Vf5 6. Hf6+ Vg4 7. Hg5# 4... Vg6 5. Hg4+ Vh6 6. Hxg7+ Vh5 7. Hg5# 1-0 [02 D 09]

No. 42

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Hxf7! 1. Xg7! 1... Mxf7 2. Xg8+ Xxg8 3. Mxf7# 1-0 [03 A 01]

No. 43

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. e6 Hxe6 2. Xde1 Hf6 3. Xxe7 Xxe7 4. Mg6+ white has a decisive advantage 1-0 [03 A 02]

No. 44

1... ?

Đen đi thắng !

Back 1 - Lui 1 Forward 1 1... Xxh3+ 2. gxh3 Hxh3+ 3. Hh2 Mf2# 0-1 [03 A 03]

No. 45

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Hh8+ Txh8 2. Mf8# 1-0 [03 A 04]

No. 46

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Hh7+ Vxh7 2. Mg5+ Vh8 3. Mf7# 1-0 [03 A 05]

No. 47

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Hg8+ Vxg8 2. Me7+ 2. Mf6+ Vf8 3. Mfxd7+ Ve7 4. Mc6# 2... Vf8 3. M5g6+ hxg6 4. Mxg6# 1-0 [01 A 06]

No. 48

1... ?

Đen đi thắng !

Back 1 - Lui 1 Forward 1 1... Xg6! 2. gxh3 2. Xg1? Mxf2# 2. g3 avoids the mate but not the loss vermeidet zwar das Matt aber nicht die Niederlage 2... Txf1 3. Xxf1 Med2 4. Mxd2 Mxd2 black has a decisive advantage 2... Hg1+ 3. Xxg1 Mxf2# 0-1 [03 B 01]

No. 49

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Txf5 gxf5 2. Hxf5+ Vh8 3. Mg6+ Vh7 4. Me5+ 4. Mf8+ Vh8 5. Hh7+ Mxh7 6. Mg6# 4... Vh8 5. Mf7# 1-0 [03 B 02]

No. 50

1. ?

Trắng đi thắng !

Back 1 - Lui 1 Forward 1 1. Md6 Te8 2. Hxa4 Txa4 3. Mf7# 1-0 [03 B 03]

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