MESON Chess Problem Database
Problem Display
PID: 205767 (5n2/b1r1B2p/3N1PbP/r3kBK1/1N1pp3/3P1p2/Q2n4/8 w - - 0 1)
Winkler, Karl Winkler
Arbeiter Schachzeitung, 1925
#2
9 + 11
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Ra3
- 2.Qd5#
- 1...Ra4
- 2.Qd5#
- 1...Rd5
- 2.Qxd5#
- 1...Ra6
- 2.Qd5#
- 1...Rc6
- 2.Sxc6#
- 1...Rb7
- 2.Sc6#
- 1...Rd7
- 2.Sc6#
- 1...Bxf5
- 2.Sf7#
- 1...Bf7
- 2.Sxf7#
- 1...Bc5
- 2.Qd5#
- 1...Sb1
- 2.Qh2#
- 1...Sb3
- 2.Qh2#
- 1...Sc4
- 2.Qh2#
- 1...Se6+
- 2.Qxe6#
- 1...Sd7
- 2.Qe6#
- 1...exd3
- 2.Sxd3#
- 1...Ra3
- Tries
- 1.Sc4+?
- 1...Sxc4
- 2.Qh2#
- 1...Rxc4!
- 1...Sxc4
- 1.Sxe4?
- threat
- 2.Bd6#
- 1...Se6+
- 2.Qxe6#
- 1...Rxe7
- 2.Sc6#
- 1...Rd5
- 2.Qxd5#
- 1...Ra6
- 2.Qd5#
- 1...Rc6
- 2.Sxc6#
- 1...Rd7
- 2.Sc6#
- 1...Bc5
- 2.Qd5#
- 1...Sc4
- 2.Qh2#
- 1...Sxe4+!
- threat
- 1.Sb5?
- threat
- 2.Bd6#
- 2.Qd5#
- 1...Se6+
- 2.Qxe6#
- 1...Rxa2
- 2.Bd6#
- 1...Rxe7
- 2.Sc6#
- 2.Qd5#
- 1...Ra6
- 2.Qd5#
- 1...Rc4
- 2.Bd6#
- 1...Rc5
- 2.Bd6#
- 1...Rc6
- 2.Sxc6#
- 2.Qd5#
- 1...Rd7
- 2.Sc6#
- 1...Bf7
- 2.Bd6#
- 1...Bc5
- 2.Qd5#
- 1...Sb3
- 2.Bd6#
- 2.Qh2#
- 1...Sc4
- 2.Qh2#
- 1...Rxb5!
- threat
- 1.Sc8?
- threat
- 2.Bd6#
- 1...Se6+
- 2.Qxe6#
- 1...Rxe7
- 2.Sc6#
- 1...Rd5
- 2.Qxd5#
- 1...Ra6
- 2.Qd5#
- 1...Rc6
- 2.Sxc6#
- 1...Rd7
- 2.Sc6#
- 1...Bc5
- 2.Qd5#
- 1...Sc4
- 2.Qh2#
- 1...Rxc8!
- threat
- 1.Se8?
- threat
- 2.Bd6#
- 1...Se6+
- 2.Qxe6#
- 1...Rxe7
- 2.Sc6#
- 1...Rd5
- 2.Qxd5#
- 1...Ra6
- 2.Qd5#
- 1...Rc6
- 2.Sxc6#
- 1...Rd7
- 2.Sc6#
- 1...Bc5
- 2.Qd5#
- 1...Sc4
- 2.Qh2#
- 1...Bxe8!
- threat
- 1.Sc4+?
- Keys
- 1.Sb7!
- threat
- 2.Bd6#
- 1...Se6+
- 2.Qxe6#
- 1...Rxb7
- 2.Sc6#
- 1...Rxe7
- 2.Sc6#
- 1...Rd5
- 2.Qxd5#
- 1...Ra6
- 2.Qd5#
- 1...Rc6
- 2.Sxc6#
- 1...Rd7
- 2.Sc6#
- 1...Bc5
- 2.Qd5#
- 1...Sc4
- 2.Qh2#
- threat
- 1.Sb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 8
- Sets
- R(e);N_GUARD::QAR1(A)
- R(e);N_GUARD::QAR1(A),XR(e)
- R(i);N_GUARD::S(C),XR(i)
- R(i);N_GUARD::S(C)
- B(g);N_GUARD,XB(D)::S(F)
- B(g);N_GUARD::S(F),XB(g)
- B(h);S_CUTR(e)::QAR1(A)
- S(a);OGATE::QAB(A)
- S(k);CHECK,N_GUARD::QAR1(A),XS(k)
- S(k);N_GUARD::QAR1(A)
- P(d);XP(B)::S(C),XP(d)
- Tries
- Try
- S(F);CHECK
- Vars
- S(a);OGATE,XS(F)::QAB(A)
- Refutation
- R(i);XS(F)
- Try
- S(F);XP(d)
- Threat
- B(I)
- Vars
- S(k);CHECK,N_GUARD::QAR1(A),XS(k)
- R(i);N_GUARD,XB(I)::S(C)
- R(e);N_GUARD::QAR1(A),XR(e)
- R(e);N_GUARD::QAR1(A)
- R(i);N_GUARD::S(C),XR(i)
- R(i);N_GUARD::S(C)
- B(h);S_CUTR(e)::QAR1(A)
- S(a);OGATE::QAB(A)
- Refutation
- S(a);CHECK,XS(F)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- S(k);CHECK,N_GUARD::QAR1(A),XS(k)
- R(e);XQ(A)::B(I)
- R(e);::QAR1(A)
- R(i);::B(I)
- R(i);N_GUARD::S(C)
- B(g);::B(I)
- B(h);::QAR1(A)
- S(a);OGATE::QAB(A)
- Refutation
- R(e);XS(F)
- Try
- S(F);
- Threat
- B(I)
- Vars
- S(k);CHECK,N_GUARD::QAR1(A),XS(k)
- R(i);N_GUARD,XB(I)::S(C)
- R(e);N_GUARD::QAR1(A),XR(e)
- R(e);N_GUARD::QAR1(A)
- R(i);N_GUARD::S(C),XR(i)
- R(i);N_GUARD::S(C)
- B(h);S_CUTR(e)::QAR1(A)
- S(a);OGATE::QAB(A)
- Refutation
- R(i);XS(F)
- Try
- S(F);
- Threat
- B(I)
- Vars
- S(k);CHECK,N_GUARD::QAR1(A),XS(k)
- R(i);N_GUARD,XB(I)::S(C)
- R(e);N_GUARD::QAR1(A),XR(e)
- R(e);N_GUARD::QAR1(A)
- R(i);N_GUARD::S(C),XR(i)
- R(i);N_GUARD::S(C)
- B(h);S_CUTR(e)::QAR1(A)
- S(a);OGATE::QAB(A)
- Refutation
- B(g);XS(F)
- Try
- Actual
- S(F);
- Threat
- B(I)
- Vars
- S(k);CHECK,N_GUARD::QAR1(A),XS(k)
- R(i);N_GUARD,XS(F)::S(C)
- R(i);N_GUARD,XB(I)::S(C)
- R(e);N_GUARD::QAR1(A),XR(e)
- R(e);N_GUARD::QAR1(A)
- R(i);N_GUARD::S(C),XR(i)
- R(i);N_GUARD::S(C)
- B(h);S_CUTR(e)::QAR1(A)
- S(a);OGATE::QAB(A)
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).