120:
263:
25:
333:
326:
319:
312:
305:
298:
291:
284:
277:
270:
256:
250:
502:
459:
himself, is a simple and clear demonstration of the manoeuvre. The straightforward doubling 1.Rgb2, threatening 2.Rb8#, fails to 1...Bxd6, so the more roundabout Zepler doubling is required: 1.Rb4 Bg7 (now 1...Bxd6 is no good because of 2.Rg8+) 2.Rgb2 any 3.Rb8#.
447:
in which a piece moves along a certain line (rank, file or diagonal), then another friendly piece moves onto that same line, then the first piece moves again in the same direction as before. The term is effectively limited to the field of
149:
35:
539:
171:
93:
50:
65:
485:
132:
72:
203:
142:
136:
128:
187:
79:
153:
532:
558:
61:
563:
568:
476:
525:
509:
86:
464:
552:
480:
449:
456:
24:
42:
463:
Zepler doubling can be contrasted with another doubling manoeuvre,
444:
501:
113:
18:
455:
The first problem to show the idea (shown to the right), by
513:
46:
210:
141:but its sources remain unclear because it lacks
533:
8:
51:introducing citations to additional sources
540:
526:
172:Learn how and when to remove this message
41:Relevant discussion may be found on the
262:
332:
325:
318:
311:
304:
297:
290:
283:
276:
269:
255:
246:
7:
498:
496:
512:. You can help Knowledge (XXG) by
14:
508:This chess-related article is a
500:
331:
324:
317:
310:
303:
296:
289:
282:
275:
268:
261:
254:
248:
118:
34:relies largely or entirely on a
23:
489:(Oxford University Press, 1996)
1:
486:The Oxford Companion to Chess
483:, "Erich Ernest Zepler" in
204:Hamburgischer Correspondent
585:
495:
183:
190:to describe chess moves.
127:This article includes a
156:more precise citations.
47:improve this article
443:is a manoeuvre in
188:algebraic notation
186:This article uses
129:list of references
521:
520:
430:
429:
182:
181:
174:
112:
111:
97:
62:"Zepler doubling"
576:
542:
535:
528:
504:
497:
335:
334:
328:
327:
321:
320:
314:
313:
307:
306:
300:
299:
293:
292:
286:
285:
279:
278:
272:
271:
265:
264:
258:
257:
252:
251:
211:
177:
170:
166:
163:
157:
152:this article by
143:inline citations
122:
121:
114:
107:
104:
98:
96:
55:
27:
19:
584:
583:
579:
578:
577:
575:
574:
573:
549:
548:
547:
546:
493:
473:
465:Turton doubling
441:Zepler doubling
438:
437:
436:
337:
336:
329:
322:
315:
308:
301:
294:
287:
280:
273:
266:
259:
249:
208:
201:
193:
192:
191:
178:
167:
161:
158:
147:
133:related reading
123:
119:
108:
102:
99:
56:
54:
40:
28:
17:
16:Chess manoeuvre
12:
11:
5:
582:
580:
572:
571:
566:
561:
559:Chess problems
551:
550:
545:
544:
537:
530:
522:
519:
518:
505:
491:
490:
472:
469:
450:chess problems
431:
428:
427:
425:
422:
419:
416:
413:
410:
407:
404:
401:
398:
397:
394:
390:
389:
386:
382:
381:
378:
374:
373:
370:
366:
365:
362:
358:
357:
354:
350:
349:
346:
342:
341:
338:
330:
323:
316:
309:
302:
295:
288:
281:
274:
267:
260:
253:
247:
245:
241:
240:
238:
235:
232:
229:
226:
223:
220:
217:
214:
209:
197:
196:
185:
184:
180:
179:
137:external links
126:
124:
117:
110:
109:
45:. Please help
31:
29:
22:
15:
13:
10:
9:
6:
4:
3:
2:
581:
570:
567:
565:
564:1929 in chess
562:
560:
557:
556:
554:
543:
538:
536:
531:
529:
524:
523:
517:
515:
511:
506:
503:
499:
494:
488:
487:
482:
481:Kenneth Whyld
478:
475:
474:
470:
468:
466:
461:
458:
453:
451:
446:
442:
434:
433:Mate in three
426:
423:
420:
417:
414:
411:
408:
405:
402:
400:
399:
395:
392:
391:
387:
384:
383:
379:
376:
375:
371:
368:
367:
363:
360:
359:
355:
352:
351:
347:
344:
343:
339:
243:
242:
239:
236:
233:
230:
227:
224:
221:
218:
215:
213:
212:
206:
205:
200:
195:
189:
176:
173:
165:
155:
151:
145:
144:
138:
134:
130:
125:
116:
115:
106:
95:
92:
88:
85:
81:
78:
74:
71:
67:
64: –
63:
59:
58:Find sources:
52:
48:
44:
38:
37:
36:single source
32:This article
30:
26:
21:
20:
514:expanding it
507:
492:
484:
477:David Hooper
462:
457:Erich Zepler
454:
440:
439:
432:
202:
199:Erich Zepler
198:
194:
168:
159:
148:Please help
140:
100:
90:
83:
76:
69:
57:
33:
569:Chess stubs
154:introducing
553:Categories
471:References
73:newspapers
43:talk page
162:May 2024
103:May 2024
207:, 1929
150:improve
87:scholar
89:
82:
75:
68:
60:
445:chess
135:, or
94:JSTOR
80:books
510:stub
479:and
66:news
49:by
555::
467:.
452:.
435:.
139:,
131:,
541:e
534:t
527:v
516:.
424:h
421:g
418:f
415:e
412:d
409:c
406:b
403:a
396:1
393:1
388:2
385:2
380:3
377:3
372:4
369:4
364:5
361:5
356:6
353:6
348:7
345:7
340:8
244:8
237:h
234:g
231:f
228:e
225:d
222:c
219:b
216:a
175:)
169:(
164:)
160:(
146:.
105:)
101:(
91:·
84:·
77:·
70:·
53:.
39:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.