Study 187

Happy New Year 2021!

Árpád Rusz
Internet (RCS blog)
2020
Draw

1. c8=Q f1=Q 2. Qc3+ Qd3 2... Rd3 3. Qxe5+ Kd2 4. Qb2+ Ke3 5. Qe5+ perpetual check

3. Qxe5+ Kf3 4. Qh5+ Kg2 5. Qg5+ Kf2 6. Qf6+ Kg1 7. Qg7+ Kh2 7... Rg2 8. Qa1+ Kf2 9. Qa2+ Kg3 10. Qg8+ Kh2 11. Qh8+ Kg1 12. Qa1+ perpetual check

8. Qh6+ Kg3 9. Qg5+ Kf2 10. Qf6+ Ke3 10... Kg1 11. Qg7+ perpetual check

11. Qe5+ Kf3 12. Qh5+ Ke4 13. Qh1+ Kd4 14. Qa1+ Kd5 15. Qa8+ Ke5 16. Qh8+ Ke4 17. Qh1+ perpetual check

Study 128

Árpád Rusz
Internet (Didukh's Blog)
2017

Draw

1. Nd5+ Ng7 2. Ne7! h4 3. Bc3! Thematic try: 3. Be5? h5 4. Bf4 Be4 5.Nd7 Bb1! Bristol Theme 6. b7 Qc2# 3... h5 4. Bd2 Be4! 4... Nf5 5. Bc3+ Ng7 6. Bd2 Bb7 7. Kb2! Nf5 8. Bc3+ Ng7 9. Bd2 positional draw

5. Nd3!! 5. Bf4? Bb1! Bristol 6. b7 Qc2#; 5. Kb2? Bb1! Bristol 6. b7 Qc2+ 7. Ka1 Qa2# 5... Bc6! 6. Nf4! Unlike to the thematic try now the f4 square was empty! 6. Nc5? Ba4! 7. b7 Qc2# 6... Qe4 7. Nfg6+ Kh7 8. Nf8+ Kh8 9. Nfg6+ perpetual check

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An interesting feature of this study is that there are no captures in the solution not even in the variations. Compare to this related study: Study 128a

Asymmetry 5

G. Nadareishvili
Kommunist
1974
- correction -

White wins

1. Qb5!! Thematic try: 1. Qh5? Rb1+ 2. Qd1 Rh1+ 3. Kf2! Rhxd1 (3... Rbxd1? 4. e8=Q+ Kd3 5. Qb5+ c4 6. Qxd5+ +-) 4. e8=Q+ Kd3 5. Qe5 Rd2+ 6. Kg3 Rg1+ 7. Kh3 Rh1+ perpetual check 1... Rh1+ 2. Qf1 Rb1+ 3. Kd2! Rbxf1 3... Rhxf1 4. e8=Q+ Kf3 5. Qh5+ g4 6. Qxf5+ +- 4. e8=Q+ Kf3 5. Qe5! Rf2+ 6. Kc3 Rc1+ 7. Kb3 Rb1+ 8. Ka3! +- 8. Ka4?? Ra2#

Study 119

Árpád Rusz
Polášek-Vlasák-60 JT
2017
2nd Commendation

White wins

1. Rh2 1. Rd2? Be7! (1... Bc7? 2. Rd5+ Kg4 3. Bg7 Bf4 4. Kf1! Kf3 5. Rd3+ Ke4 6. Rd4+ Kf3 7. Rxf4+! R sacrifice Kxf4 8. h6 Ke4 9. h7 Ra8 10. h8=Q Rxh8 11. Bxh8 Kd5 12. Bd4! B sacrifice 12... Kxd4 13. c6 +-) 2. Rd5+ Kg4 (2... Kh4? 3. Bg7 Bg5 4. h6 Bxh6 5. Bxh6 Rxh6 6. Kf2 Re6 7. Kf3 +-) 3. Bg7 Bg5 4. Rxg5+ R sacrifice (4. h6 Bxh6 5. Bxh6 Rxh6 =) 4... Kxg5 5. h6 Kg6 = 1... Kh6 1... Rh6 2. Bc1+ +-; 1... Bc7 2. Rh1 Ra2 3. Bd4 Kh6 4. Be3+ +- 2. Bc1+ Bg5 3. Bxg5+ Kxg5

4. Rh1!! 4. h6? Ra1+! 5. Kg2 Ra2+ 6. Kg3 Ra3+ 7. Kf2 Ra2+ 8. Kg3 Ra3+ perpetual check - chameleon echo; 4. Rc2? Kxh5 5. c6 Ra8 6. c7 Rc8 = 4... Ra2 4... Ra1+ 5. Kg2! +- (5. Kh2? Ra5 6. Rc1 Kxh5 7. c6 Ra8 8. c7 Rc8 =) 5. h6 5. c6? Kh6 = 5... Kg4 6. c6! 6. h7? Ra1+ 7. Kg2 Ra2+ 8. Kf1 Ra1+ 9. Kg2 Ra2+ perpetual check - chameleon echo 6... Kg3 7. Kf1 Ra1+ 8. Ke2 Rxh1 9. c7 Rc1 10. h7 +-

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Study 107

Á. Rusz
Chess Informant-50 JT
2016
3rd Honourable Mention

White wins

1. Nc7+ 1. Rc8? R3a6+! 2. Kb5 Rxe6 3. Qf8 Re5+ 4. Kb4 Re4+ 5. Kc3 Re3+ 6. Kc2! Re2+ (6... Ra2+? 7. Kb1 +-) 7. Kd1 Re1+ 8. Kc2 Re2+ 9. Kd3 Re3+ 10. Kc2 Re2+ perpetual check 1... Bxc7+ 2. Kxc7 b5+ 3. Kc6! 3. Kc8? Rh3! (3... Rg3? 4. Rg4 +-) 4. Qb2 Ne3! 5. Qe5 (5. Rc7 Nd5! 6. Rb7! Rh8+! (6... Rxb7? 7. Qa2+ Ra7 8. Qxd5+ Rb7 9. Qxb7#) 7. Qxh8 Rxb7 8. Qa1+ Ra7 9. Qh1 Rc7+ 10. Kd8 Rc5 =) 5... Rb7 6. Rc6 Rh8+! 7. Qxh8 Rb8+ 8. Kc7 Nd5+! (8... Rxh8? 9. Ra6# echo) 9. Kd6 Rxh8 = 3... R7a6+ 3... bxc4 4. Qf8#; 3... R3a6+ 4. Kxb5 Rb7+ 5. Kxa6 Rxb4 6. Rxb4 +- 4. Kxb5 R3a5+ 5. Qxa5 Rxa5+

6. Kb6!! 6. Kxa5? Kb7 7. Kb5 (7. Re4 Kc6 8. Kb4 Kd5 =) 7... Ne3 8. Rf4 (8. Rd4 Kc7 9. Kc5 Nf5 =) 8... Nd5 9. Rf7+ Nc7+ 10. Kc5 Kc8 11. Kc6 Ne8 12. Ra7 Kd8 13. Rf7 Kc8 positional draw 6... Kb8 6... Ra1 7. Rc8# echo 7. Re4! Ra6+ 7... Kc8 8. Kxa5 +-; 7... Rh5 8. Re8# 8. Kxa6 Kc7 9. Kb5 Kd6 10. Kc4 +-

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Study 106

Á. Rusz
StrateGems
2016
3rd Prize

White wins

1. bxc7 is followed by two variations:
a. 1...Rc2+ 2. Bc3! unguarded guard 2. Kb6? Rc6+ 3. Kb5 Rxc7 = 2... Rxc3+ 3. Kb6 Rb3+ 3... Nf7 4. Rh3! Rxc7 (4... Rxh3 5. c8=Q#) 5. Kxc7 +- 4. Ka6 Rb8! self-fork 4... Ra3+ 5. Kb5 Rb3+ 6. Ka4! (6. Kc4? Rb8 7. Rh8 Rc8 8. Rxd8 Kb7 =) 6... Rb8 7. Rh8 +-

5. Rg6!! mutual zugzwang 5. Rf6? Nc6! 6. Rxc6 (6. cxb8=Q+ Nxb8+ 7. Kb6 Nd7+ =) 6... Rb6+! 7. Kxb6 stalemate 5... Rc8 5... Nf7 6. cxb8=Q+ Kxb8 7. Rg8+ Kc7 8. Rg7 +- 6. Rg8 Rxc7 7. Rxd8+ Rc8 8. Rxc8#

b. 1... Ne6+ 2. Kc6! 2. Kb6? Rd6+ = 2... Rc2+ 2... Nxc7 3. Kxc7 Ka7 4. Bc3 Rd5 5. Rc6 Rb5 6. Bd4+ Ka8 7. Ra6# 3. Kb6 Nf8! 3... Nxc7 4. Rh8+ +-

4. Be5! 4. Rh8? Rb2+! 5. Ka6 (5. Bxb2 stalemate) 5... Ra2+ 6. Kb6 Rb2+! 7. Kc6 Rc2+ 8. Kb6 Rb2+ perpetual check/stalemate 4... Nd7+ 5. Ka6 Ra2+ 5... Nxe5 6. Rh8# 6. Kb5 Kb7 7. Rh8 Rc2

8. Rb8+! Nxb8 9. cxb8=Q#

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Related studies: Study 106a Study 106b

Study 92

Árpád Rusz
Afek-64 JT
2016
3rd Honourable Mention

White wins

1. Qf3! Bg7+ 2. Kxd5 Nc3+! 3. Qxc3 Qd7+ 4. Kc4! Thematic try: 4. Kxc5? Bxd4+ 5. Qxd4 Qa7+ 6. Kc4 Qxa4+ 7. Kc3 Qa1+ 8. Kd3 Qd1+ 9. Ke3 Qg1+ 10. Ke4 Qg4+ 11. Ke5 Qg7+ 12. Kd5 Qd7+ 13. Kc5 Qa7+ perpetual check

perpetual check

Loss of time: 4. Ke4 Qg4+ 5. Kd3 Qd1+ 6. Kc4 Qxa4+ 4... Qxa4+ 5. Kd5! 5. Kxc5? Bxd4+ 6. Kd6+!? Bxc3 7. Rxc3+ Kb7 = (7... Kb8? 8. Rh8+ Kb7 9. Rc7+ Kb6 10. Rb8+ Ka6 11. Ra8+ +-; 7... Kd8? 8. Rh8+ +-) 5... Qd7+ 6. Kxc5! Bxd4+

7. Kb4+!! Bxc3+ 8. Rxc3+ Kb7 9. Rb5+ Ka6 10. Ra3# The mate is possible only because the harmful a-pawn has disappeared.

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Study 83

Árpád Rusz
2nd UAPA Ty
2015

Draw

1.Qxh5! 1.Qxd5? Ng3#; 1.Rxb2? Ng3+ 2.Kxh2 Be4+ -+

First main line:1...Be4+ 2.Nxe4 Qxh5

perpetual check by two rooks

3.Ra5+! Thematic try: 3.Rd8+? Ka7 4.Ra5+ Kb6 5.Rd6+ Kxa5 6.Rxd5+ Rb5! -+ 3...Kb8 4.Rd8+ Kc7 5.Rc5+! Kb6 5...Kxd8 6.Rxd5+! Qxd5 stalemate 6.Rd6+ Ka7 7.Ra5+ Kb8 8.Rd8+ Kc7 9.Rc5+ =

Second main line: 1...Rxb5 2.Rxh7! Qxc3 3.Qe8+ fork Ka7 4.Qxb5 Qc1+ 5.Kxh2 Qc2+ fork 6.Kg1 Qxh7

perpetual check by the queen

7.Qa5+! Kb8 8.Qd8+! Ka7 9.Qa5+ =

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Study 54

Árpád Rusz
Internet (Talkchess Forum)
2011

White wins

1. Qxh3+ (1. Nxf6? Kg1 2. Qxh3 Bg2 3. Qe3 Bf1+ 4. Kf3 Bg2+ 5. Ke2 Bf1+ perpetual check) 1... Bh2 2. Qf1+ Bg1 3. Nxf6 Bg2 4. Ng4 Bxf1+ (4... Bf3+ 5.Ke3! (5. Kxf3? stalemate) 5... Bxg4 6. Kf4 +-) 5. Kxf1 mutual zugzwang 5...Bh2 6. Nxf2#

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Study 47

Siegfried Hornecker & Árpád Rusz
Neidze-70 JT
2007
5/7th Commendation
- version -

Draw

1. Bh6 Bc2+ 2.d3!! Thematic try: 2. Kf6? Kxd6 3. Be8 Rg8 4. Bf4+ Kc5 5. Be3+ Kb4 -+ 2... Bxd3+ 3. Kf6 Kxd6 4. Be8! 4. Bxg7? Be7# 4... Rg8 5. Bf4+ Kc5 (5...Kd5 6. Bf7+ =) 6. Be3+ Kb4 7. Bd2+ Ka3 8. Bc1+ Kb4 9. Bd2+ perpetual check

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Study 35

Árpád Rusz
Оlimpiya Dunyasi
2008
- version -

White wins

1. Ne7! (1. Nd6? Nc6+ 2. Kc8 Nb6#) 1... Nxe7 (1... Na6+ 2. Kc8 Nb6+ 3. Kd8 +-) 2. c8=Q+ Nbc6+ 3. Qxc6+! (3. Kc7? Nd5+ 4. Kd7 Nf6+ 5. Kc7 Nd5+ perpetual check) 3... Kxc6 4. c3! (4. c4? Kb(d)6 5. c5+ Kc6 stalemate) 4... Kd6 5. c4 Nc6+ (5... Kc6 6. c5 +- mutual zugzwang - virtual stalemate) 6. Kc8 Nxa7+ 7. Kd8 Nc6+ 8. Ke8 Kxe6 9. c5 mutual zugzwang 9...Nb8 (9... Kd5 10. b8=Q +-) 10. Kd8 Kd5 11. Kc8! (11. Kc7? Na6+ 12. Kb6 Nb8 13.Ka7 Nc6+ 14. Kb6 Nb8 15. Kc7 Na6+ positional draw) 11... Kxc5 12. Kxb8 +-

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Study 21

Árpád Rusz
EG
2006
1st Honourable Mention

White wins

1.a7! [1.Qe2+? Ka5! 2.a7 b5! 3.Qe7 Rb4+ 4.Kc2 Rc4+=] 1...Be4 2.a8Q [2.Qxe4? Rxe4 3.a8Q Rb4+! 4.Kc2 Kb6 5.Qd8+ Ka6 6.Kc3 Rb5 7.Kc4 Ra5! (7...Rh5? 8.Qd3! Ka7 9.Qe3+ Ka6 (9...b6 10.Qe7+ Ka6 11.Qd7! Rc5+ 12.Kb4 mutual zugzwang (12.Kb3? Rc1 mutual zugzwang 13.Kb4 Rc5 14.Kb3 Rc1 positional draw) 12...Ra5 13.Qc8+ Ka7 14.Qc7+ Ka6 15.Qb8+-) 10.Qe2! b5+ 11.Kb3! Rh3+ 12.Kb2 Rh4 13.Qe6+ Ka5 14.Qe1++-) 8.Kb4 Rb5+ 9.Ka4 Rc5! (9...Rh5? 10.Qd3+ Ka7 11.Qe3++-) 10.Kb4 Rb5+ 11.Kc4 Ra5 positional draw] 2...Rb4+! [2...Bxc2+ 3.Kxc2 Kb6 4.Qg8! (4.Qa2? Rd6 5.Qb3+ Ka7 6.Qe3+ Ka8=) 4...Rd6 (4...Rb4 5.Qe6+ Ka7 6.Qe3+ Ka6 7.Qa3++-) 5.Qg1++-] 3.Kc1 [3.Ka2? Bxc2 4.Qxb7+ Kc4 5.Qc6+ Kd3=] 3...Bxc2 4.Qxb7+! [4.Kxc2? Kb6=] 4...Ka4 5.Qa7+! [5.Qc6+? Ka3 6.Kxc2 (6.Qxc2 Rc4 7.Qxc4 stalemate) 6...Rc4+ 7.Qxc4 stalemate;

chameleon echo

5.Qa8+? Kb3 6.Qf3+ Ka2! 7.Qc3 (7.Kxc2 Rb2+ 8.Kc1 Rb1+ 9.Kc2 Rb2+ perpetual check) 7...Rb1+ 8.Kxc2 Rc1+! 9.Kxc1 stalemate]

chameleon echo

5...Kb3 6.Qe3+ Ka2! 7.Qc5! +-

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Related study: Study 21a