MESON Chess Problem Database
Problem Display
PID: 210740 (2n3BB/q1p3R1/1pr5/pb6/3R3Q/Kpk2r1n/2p2p2/2N2N2 w - - 0 1)
Votruba, Otakar
Deutsche Schachblatter, 1936
#2
8 + 13
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rd3
- 2.Se2#
- 1...Rc4
- 2.Se2#
- 1...Be2
- 2.Sxe2#
- 1...Ba4
- 2.Se2#
- 1...b2
- 2.Sa2#
- 1...Rd3
- Tries
- 1.Rd2?
- threat
- 2.Qd4#
- 1...Rd3
- 2.Se2#
- 1...Rf4
- 2.Rg3#
- 1...Rc4
- 2.Se2#
- 1...Rd6
- 2.Rxc7#
- 1...Sf4
- 2.Rxc7#
- 1...Bd3!
- threat
- 1.Rd3+?
- 1...Rxd3
- 2.Se2#
- 1...Bxd3!
- 1...Rxd3
- 1.Rd6?
- threat
- 2.Rg3#
- 2.Qd4#
- 1...Rxd6
- 2.Rxc7#
- 1...Sxd6
- 2.Rg3#
- 1...Rd3
- 2.Se2#
- 2.Rg3#
- 1...Rg3
- 2.Rxg3#
- 2.Rg4#
- 2.Rg5#
- 2.Rgg6#
- 2.Qf6#
- 2.Qd4#
- 1...Rf4
- 2.Rg3#
- 1...Rf6
- 2.Qxf6#
- 2.Qd4#
- 1...Rc4
- 2.Se2#
- 1...Rc5
- 2.Qd4#
- 1...Bd3
- 2.Qd4#
- 1...Sf4
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rg4#
- 2.Rg5#
- 2.Rgg6#
- 2.Rxc7#
- 2.Rgd7#
- 2.Re7#
- 2.Rh7#
- 2.Qf6#
- 1...Sg5
- 2.Qd4#
- 1...cxd6!
- threat
- 1.Rg3?
- threat
- 2.Rd3#
- 2.Rc4#
- 2.Rd6#
- 1...Rxg3
- 2.Rd3#
- 2.Rc4#
- 1...Bxf1
- 2.Rd3#
- 2.Rd6#
- 1...Rd3
- 2.Se2#
- 2.Rdxd3#
- 2.Rc4#
- 2.Rd6#
- 1...Rc4
- 2.Se2#
- 2.Rxf3#
- 2.Rd3#
- 2.Rxc4#
- 1...Rc5
- 2.Rd3#
- 2.Rc4#
- 2.Rd5#
- 1...Rd6
- 2.Rd3#
- 2.Rc4#
- 2.Rxd6#
- 1...Re6
- 2.Rd3#
- 2.Rc4#
- 1...Rg6
- 2.Rd3#
- 2.Rc4#
- 1...Rh6
- 2.Rd3#
- 2.Rc4#
- 1...Bd3
- 2.Rxd3#
- 2.Rc4#
- 1...Bc4
- 2.Rd3#
- 2.Rxc4#
- 2.Rd6#
- 1...Sd6
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Ra4#
- 2.Rb4#
- 2.Rc4#
- 2.Re4#
- 2.Rf4#
- 2.Rdg4#
- 2.Rd5#
- 2.Rxd6#
- 1...Rf6!
- threat
- 1.Rxc7?
- threat
- 2.Rd3#
- 2.Rc4#
- 2.Rf4#
- 1...Qxc7
- 2.Rd3#
- 2.Rc4#
- 1...Rxc7
- 2.Rd3#
- 2.Rc4#
- 1...Bxf1
- 2.Rd3#
- 1...Rd3
- 2.Se2#
- 2.Rxd3#
- 2.Rc4#
- 1...Re3
- 2.Rd3#
- 2.Rc4#
- 2.Re4#
- 1...Rg3
- 2.Rd3#
- 2.Rc4#
- 2.Rg4#
- 1...Rf4
- 2.Rd3#
- 2.Rc4#
- 2.Rxf4#
- 1...Rf5
- 2.Rd3#
- 2.Rc4#
- 1...Rf7
- 2.Rd3#
- 2.Rc4#
- 1...Rf8
- 2.Rd3#
- 2.Rc4#
- 1...Rc4
- 2.Se2#
- 2.Rd3#
- 2.Rdxc4#
- 2.Rf4#
- 1...Bd3
- 2.Rxd3#
- 2.Rc4#
- 2.Rf4#
- 1...Bc4
- 2.Rd3#
- 2.Rxc4#
- 1...Sf4
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Ra4#
- 2.Rb4#
- 2.Rc4#
- 2.Re4#
- 2.Rxf4#
- 2.Rd6#
- 2.Rdd7#
- 2.Rd8#
- 1...Rf6!
- threat
- 1.Rd2?
- Keys
- 1.Rd8!
- threat
- 2.Qd4#
- 1...Rd3
- 2.Se2#
- 1...Rf4
- 2.Rg3#
- 1...Rc4
- 2.Se2#
- 1...Rd6
- 2.Rxc7#
- 1...Sf4
- 2.Rxc7#
- 1...Sd6
- 2.Rg3#
- threat
- 1.Rd8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 3
- Sets
- R(e);S_CUTB(h)::S(A)
- R(j);S_CUTB(h)::S(A)
- B(h);N_GUARD::S(A),XB(h)
- B(h);N_GUARD::S(A)
- P(c);N_GUARD::S(A)
- Tries
- Try
- R(D);
- Threat
- QAB1(E)
- Vars
- R(e);S_CUTB(h)::S(A)
- R(e);::B(H)+R(F),DCHECK
- R(j);S_CUTB(h)::S(A)
- R(j);::B(H)+R(F),DCHECK,XP(l)
- S(f);S_CUTR(e)::B(H)+R(F),XP(l)
- Refutation
- B(h);
- Try
- R(D);CHECK
- Vars
- R(e);SBLOCK,XR(D)::S(A)
- Refutation
- B(h);XR(D)
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- R(j);XR(D)::B(H)+R(F),DCHECK,XP(l)
- S(m);XR(D)::B(H)+R(F)
- R(e);::B(H)+R(F),DCHECK
- R(j);S_CUTB(h)::S(A)
- R(j);::QAB1(E)
- B(h);::QAB1(E)
- S(f);::QAB1(E)
- Refutation
- P(l);XR(D)
- Try
- R(F);P_PINR(e)
- Threat
- DUALS(3)
- Refutation
- R(j);
- Try
- R(F);P_PINR(j),XP(l)
- Threat
- DUALS(3)
- Vars
- B(h);XS(B)::B(H)+R(D),DCHECK
- Refutation
- R(e);
- Try
- Actual
- R(D);
- Threat
- QAB1(E)
- Vars
- R(e);S_CUTB(h)::S(A)
- R(e);::B(H)+R(F),DCHECK
- R(j);S_CUTB(h)::S(A)
- R(j);::B(H)+R(F),DCHECK,XP(l)
- S(f);S_CUTR(e)::B(H)+R(F),XP(l)
- S(m);S_CUTR(j)::B(H)+R(F)
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).