Mieses–Reshevsky

Mieses–Reshevsky, 1935

	a	b	c	d	e	f	g	h
8									8
7									7
6									6
5									5
4									4
3									3
2									2
1									1
	a	b	c	d	e	f	g	h

Position before 29. Nd4

A zwischenzug occurred in Mieses–Reshevsky, Margate 1935.From the position in the diagram, play continued:

29. Nd4 Bxd4  /30. cxd4  /White must have expected 30... Qxd4 31. Qxc4 Re1+ and then 32. Kg2 gets him out of trouble, but Black has a zwischenzug:

30... Re4!  /Making a double attack on the d-pawn and preventing the capture of his own pawn. Now if 31. Qxc4, 31... Re1+ forces 32. Rxe1 and White loses his queen (Chernev 1965:211).

L. Steiner–Helling

L. Steiner–Helling, 1928

	a	b	c	d	e	f	g	h
8									8
7									7
6									6
5									5
4									4
3									3
2									2
1									1
	a	b	c	d	e	f	g	h

Position after 15...Nxf2

 

 

L. Steiner–Helling, Berlin 1928, provides another example of the zwischenschach (in-between check). Black has just captured White's pawn on f2 with his knight. White responded with 16.Qxf2, expecting the skewer 16...Bg3??, which he would refute with 17.Qxf7+! Rxf7 18.Re8#. Instead, Black first played the zwischenschach 16...Bh2+! Now 17.Kxh2 Qxf2 loses White's queen. The game continued 17.Kf1 Bg3! Not seeing the point, White blithely continued with his plan: 18. Qxf7+?? Rxf7+ Now White realized that he is in check (that was the point of 16...Bh2+!), so his intended 19.Re8# is illegal. The forced 19.Bxf7+ Kxf7 would leave Black with queen for rook, an easily winning material advantage, so White resigned (Horowitz & Reinfeld 1954:178–80) (Golombek 1977:354).

Kerchev–Karastoichev

Kerchev–Karastoichev, 1965

	a	b	c	d	e	f	g	h
8									8
7									7
6									6
5									5
4									4
3									3
2									2
1									1
	a	b	c	d	e	f	g	h

Black to move.

In the game between Zlatozar Kerchev and Emil Stefanov Karastoichev, Black moved

1... Ng5 /discovering an attack on White's queen. White moved:

2. Qxg6/(If White moves the queen to another square, Black's knight captures White's rook on f3, winning the exchange.) Instead of immediately recapturing the queen, Black played

2... Nxf3+ /and White must get out of check. After

3. Bxf3 hxg6/ Black had won the exchange (Burgess 2000:47).