Jan Sprenger 1-0 – Chess Study Art

7. Jan Sprenger 1-0

Chess Study Art 2022 ℹ

[Event "Chess Study Art"]
[Site "?"]
[Date "2022"]
[Round "?"]
[White "Sprenger=Jan"]
[Black "+0413.02h4g1"]
[Result "1-0"]
[FEN "8/B1n5/8/3p4/7K/4R3/7p/5rk1 w - - 0 1"]
[Setup "1"]

1. Re2+ d4 $1 { Black opens the a8-h1 diagonal for the queen that will soon appear on h1.} ( 1... Rf2 $5 { main A. Black keeps the d5-pawn for closing the a7-g1 diagonal at a later stage.} 2. Rxf2 $1 ( 2. Kg3 $2 h1=N+ $1 ) 2... Nb5 3. Bc5 $1 { White needs to control the d6 square.} ( { logical try } 3. Bb6 $2 d4 $1 4. Ra2 Nd6 $3 5. Ra1+ Kg2 6. Ra2+ Kg1 7. Bxd4+ Kf1 8. Rf2+ Ke1 $1 9. Rxh2 Nf5+ $10 ) 3... d4 ( 3... h1=Q+ 4. Kg3 $18 { e.g.,} 4... Qe4 5. Rf4+ $1 Kh1 6. Rf1# ) 4. Ra2 Nd6 $5 5. Bxd6 { Bxd4+ would transpose to the logical try 3. Bb6?.} 5... h1=Q+ 6. Kg3 $18 { 3.... d4 has stopped the white battery, but also disabled the defense Qh8.} )2. Bxd4+ Rf2 ( 2... Kh1 3. Kg3 $1 Rg1+ 4. Kh3 $18 { and checkmate on h2} )3. Rxf2 $1 { battery} ( 3. Kg3 $2 h1=N+ $1 $10 ) 3... Ne6 { main C} ( 3... Nb5 { main B} 4. Bc5 $1 { The choice of the bishop square determines whether or not White has a double attack in the end.} ( { logical try } 4. Be3 $2 h1=Q+ 5. Kg3 Qe4 6. Rf3+ Qxe3 7. Rxe3 { no black knight hanging} 7... Kf1 8. Kf3 Nd4+ $10 ) ( { logical try } 4. Bb6 $2 h1=Q+ 5. Kg3 Qb7 $1 6. Rf6+ Qxb6 7. Rxb6 Nc3 $10 { no back rank mate} ) 4... h1=Q+ 5. Kg3 Qc6 6. Rf5+ Qxc5 7. Rxc5 $18 ) 4. Ba7 $3 { Only this move eliminates both obstacles: the tactic Ng5 and the evacuation of the queen on the long diagonal.} ( { logical try } 4. Be3 $2 Ng5 $3 { compare 4... Nd6 in main A} 5. Rf5+ Kg2 6. Rf2+ Kg1 7. Ra2+ Kf1 8. Kg3 h1=Q 9. Ra1+ Ke2 10. Rxh1 { wBe3 hanging} 10... Kxe3 $10 ) ( { logical try } 4. Bb6 $4 h1=Q+ 5. Kg3 Qb7 $1 6. Rf6+ Qxb6 $1 { rook and bishop not connected} ) 4... h1=Q+ { With the white bishop on a7, 4... Ng5 would be pointless.} 5. Kg3 Qa8 ( 5... Nd4 $5 { with stalemate counterplay leads to a final by Korolkov ( Shakhmaty v SSSR, 1965 ) :} 6. Bxd4 Qe4 7. Rf4+ $1 Kh1 8. Rf1# ) 6. Rf7+ Qxa7 7. Rxa7 Kf1 8. Rf7+ $1 ( 8. Ra4 $2 Nc5 $1 $10 ) 8... Ke2 9. Re7 { Synthesis of various motifs from the fight of bishop and rook against the h-pawn. Logical choice of the bishop square in response to three different forms of black counterplay.} 1-0

[Event "Chess Study Art"]
[Site "?"]
[Date "2022"]
[Round "?"]
[White "Sprenger=Jan"]
[Black "+0413.02h4g1"]
[Result "1-0"]
[FEN "8/B1n5/8/3p4/7K/4R3/7p/5rk1 w - - 0 1"]
[Setup "1"]