MESON Chess Problem Database
Problem Display
PID: 256535 (3B3K/p7/P2pb2R/1Q1pk3/1N1n3N/5P2/2rP4/1Bn5 w - - 0 1)
Schumer, Jacob
Wiener Schachzeitung, 1901
(First published on Thu Apr 4 1901)
#2
10 + 8
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Sg6#
- 1...Rb2
- 2.Sg6#
- 1...Rxd2
- 2.Sg6#
- 1...Rc3
- 2.Sg6#
- 1...Rc4
- 2.Sg6#
- 1...Rc5
- 2.Sg6#
- 1...Rc6
- 2.Sg6#
- 1...Rc7
- 2.Sg6#
- 1...Rc8
- 2.Sg6#
- 1...Sa2
- 2.Sd3#
- 1...Sce2
- 2.Sd3#
- 1...Scb3
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Ra2
- Tries
- 1.Qe2+?
- 1...Kf4
- 2.Qh2#
- 1...Scxe2
- 2.Sd3#
- 1...Sdxe2!
- 1...Kf4
- 1.Qxd5+?
- 1...Kf4
- 2.Qg5#
- 2.Qxd6#
- 1...Bxd5!
- 1...Kf4
- 1.Qb6?
- 1...Kf4
- 2.Qxd6#
- 1...Rxd2
- 2.Sg6#
- 1...Sxf3
- 2.Qe3#
- 1...Bf5
- 2.Qxd6#
- 1...Ra2
- 2.Sg6#
- 1...Rb2
- 2.Sg6#
- 1...Rc3
- 2.Sg6#
- 1...Rc4
- 2.Sg6#
- 1...Rc5
- 2.Sg6#
- 1...Rc6
- 2.Sg6#
- 1...Rc7
- 2.Sg6#
- 1...Rc8
- 2.Sg6#
- 1...Bh3
- 2.Qxd6#
- 1...Bg4
- 2.Qxd6#
- 1...Bd7
- 2.Qxd6#
- 1...Bf7
- 2.Qxd6#
- 1...Bc8
- 2.Qxd6#
- 1...Bg8
- 2.Qxd6#
- 1...Sa2
- 2.Sd3#
- 1...Sce2
- 2.Sd3#
- 1...Scb3
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sde2
- 2.Qe3#
- 1...Sdb3
- 2.Qe3#
- 1...Sb5
- 2.Qe3#
- 1...Sf5
- 2.Sg6#
- 1...Sc6
- 2.Qe3#
- 1...axb6!
- 1...Kf4
- 1.Qe2+?
- Keys
- 1.Qc5!
- 1...Kf4
- 2.Qxd6#
- 1...Rxd2
- 2.Sg6#
- 1...Rxc5
- 2.Sg6#
- 1...Sxf3
- 2.Qe3#
- 1...dxc5
- 2.Bc7#
- 1...Bf5
- 2.Qxd6#
- 1...Ra2
- 2.Sg6#
- 1...Rb2
- 2.Sg6#
- 1...Rc3
- 2.Sg6#
- 1...Rc4
- 2.Sg6#
- 1...Bh3
- 2.Qxd6#
- 1...Bg4
- 2.Qxd6#
- 1...Bd7
- 2.Qxd6#
- 1...Bf7
- 2.Qxd6#
- 1...Bc8
- 2.Qxd6#
- 1...Bg8
- 2.Qxd6#
- 1...Sa2
- 2.Sd3#
- 1...Sce2
- 2.Sd3#
- 1...Scb3
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sde2
- 2.Qe3#
- 1...Sdb3
- 2.Qe3#
- 1...Sb5
- 2.Qe3#
- 1...Sf5
- 2.Sg6#
- 1...Sc6
- 2.Qe3#
- 1...Kf4
- 1.Qc5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 15
- REMOVED MATES = 3
- Sets
- R(b);::S(E)
- R(b);XP(B)::S(E)
- R(b);N_SPINP(d)::S(E)
- R(b);P_PINB(I)::S(E)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- Tries
- Try
- Q(F);CHECK,N_PINP(d)
- Vars
- K(e);S_FLIGHT::QAB(F)
- S(a);XQ(F)::S(D)
- Refutation
- S(c);XQ(F)
- Try
- Q(F);CHECK,XP(d)
- Refutation
- B(g);XQ(F)
- Try
- Q(F);N_PINP(d)
- Vars
- K(e);N_GUARD,S_FLIGHT::QAB(F),XP(f)
- R(b);XP(B)::S(E)
- S(c);OGATE,XP(C)::QAR2(F)
- B(g);::QAB1(F),XP(f)
- R(b);::S(E)
- R(b);P_PINB(I)::S(E)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(c);OGATE::QAR2(F)
- S(c);SBLOCK::S(E)
- Refutation
- P(h);XQ(F)
- Try
- Actual
- Q(F);
- Vars
- K(e);N_GUARD,N_SPINP(d),S_FLIGHT::QAB(F),XP(f)
- R(b);XP(B)::S(E)
- R(b);N_SPINP(d),XQ(F)::S(E)
- S(c);OGATE,XP(C)::QAR2(F)
- P(f);N_SPINP(d),OGATEB,XQ(F)::B(I)
- B(g);::QAB1(F),XP(f)
- R(b);::S(E)
- S(a);N_GUARD::S(D)
- S(a);N_GUARD::S(D),XS(a)
- S(c);OGATE::QAR2(F)
- S(c);SBLOCK::S(E)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).