MESON Chess Problem Database
Problem Display
PID: 229007 (1r6/1p5p/PB3r1q/2R3n1/K1Nkb3/3p2p1/1P4p1/1N3Q2 w - - 0 1)
Weyding, Carl
3rd Prize, Hannover Congress Book, 1926
#2
8 + 11
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qh1
- 2.Qxf6#
- 1...Qh2
- 2.Qxf6#
- 1...Qh3
- 2.Qxf6#
- 1...Qh4
- 2.Qxf6#
- 1...Qh5
- 2.Qxf6#
- 1...Rxb6
- 2.Qg1#
- 1...Rc6
- 2.Qg1#
- 1...Rd6
- 2.Qg1#
- 1...Re6
- 2.Qg1#
- 1...Rg6
- 2.Qg1#
- 1...Qh1
- Tries
- 1.Sc3?
- threat
- 2.Sb5#
- 2.Rc6#
- 1...Bc6+
- 2.Rxc6#
- 1...Rxb6
- 2.Qg1#
- 1...Qf8
- 2.Sb5#
- 1...Rf5
- 2.Sb5#
- 1...Rc6
- 2.Sb5#
- 2.Rxc6#
- 2.Qg1#
- 1...Bf3
- 2.Rc6#
- 2.Qg1#
- 1...Bd5
- 2.Rc6#
- 1...Bf5
- 2.Rc6#
- 2.Qg1#
- 1...Bg6
- 2.Rc6#
- 2.Qxf6#
- 1...Se6
- 2.Sb5#
- 1...bxa6!
- threat
- 1.Ra5+?
- 1...Kxc4
- 2.Sd2#
- 2.Sa3#
- 2.Qc1#
- 2.b3#
- 1...Rxb6!
- 1...Kxc4
- 1.Rb5+?
- 1...Kxc4
- 2.Sd2#
- 2.Sa3#
- 2.Qc1#
- 2.b3#
- 1...Rxb6!
- 1...Kxc4
- 1.Rd5+?
- 1...Kxc4
- 2.Rd4#
- 1...Kxd5!
- 1...Kxc4
- 1.Re5+?
- 1...Kxc4
- 2.Sd2#
- 2.Sa3#
- 2.Qc1#
- 2.b3#
- 1...Rxb6!
- 1...Kxc4
- 1.Rf5+?
- 1...Kxc4
- 2.Sd2#
- 2.Sa3#
- 2.Qc1#
- 2.b3#
- 1...Rxb6!
- 1...Kxc4
- 1.Rxg5+?
- 1...Kxc4
- 2.Sd2#
- 2.Sa3#
- 2.Qc1#
- 2.b3#
- 1...Rxb6!
- 1...Kxc4
- 1.Qc1?
- threat
- 2.Qe3#
- 2.Qc3#
- 1...Rxb6
- 2.Qe3#
- 2.Qg1#
- 1...Bf3
- 2.Qe3#
- 1...Bd5
- 2.Qe3#
- 1...Bf5
- 2.Qe3#
- 1...Bg6
- 2.Qe3#
- 1...d2
- 2.Qc3#
- 1...g1Q
- 2.Qc3#
- 1...g1B
- 2.Qc3#
- 1...Rf3
- 2.Qc3#
- 1...Sf3
- 2.Qc3#
- 1...Sh3
- 2.Qc3#
- 1...Se6
- 2.Qc3#
- 1...Sf7
- 2.Qc3#
- 1...Bc6+!
- threat
- 1.Qe1?
- threat
- 2.Qc3#
- 2.Qe3#
- 1...Rxb6
- 2.Qg1#
- 2.Qe3#
- 1...d2
- 2.Qe3#
- 1...g1Q
- 2.Qc3#
- 1...g1B
- 2.Qc3#
- 1...Rf3
- 2.Qc3#
- 1...Bf3
- 2.Qe3#
- 2.Qe5#
- 1...Bd5
- 2.Rc6#
- 2.Qe3#
- 2.Qe5#
- 1...Bf5
- 2.Qe3#
- 2.Qe5#
- 1...Bg6
- 2.Qe3#
- 2.Qe5#
- 1...Sf3
- 2.Qc3#
- 1...Sh3
- 2.Qc3#
- 1...Se6
- 2.Qc3#
- 1...Sf7
- 2.Qc3#
- 1...Bc6+!
- threat
- 1.Sc3?
- Keys
- 1.Sbd2!
- threat
- 2.Sb3#
- 1...Bc6+
- 2.Rb5#
- 1...Rxb6
- 2.Qg1#
- 1...Bf3
- 2.Qg1#
- 1...Bd5
- 2.Rc6#
- 1...Bf5
- 2.Qg1#
- 1...Bg6
- 2.Qxf6#
- threat
- 1.Sbd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 9
- Sets
- Q(h);N_GUARD::QAB(B),XR(g)
- R(g);N_GUARD,XB(H)::QAB(B)
- R(g);N_GUARD::QAB(B)
- Tries
- Try
- S(A);
- Threat
- DUALS(2)
- Vars
- B(e);CHECK::B(H)+R(F),XB(e)
- R(g);N_GUARD,XB(H)::QAB(B)
- Q(h);::S(A)
- R(g);::S(A)
- B(e);::B(H)+R(F)
- S(f);::S(A)
- Refutation
- P(i);XP(G)
- Try
- R(F);CHECK
- Refutation
- R(g);XB(H)
- Try
- R(F);CHECK
- Refutation
- R(g);XB(H)
- Try
- R(F);CHECK
- Vars
- K(d);P-FLIGHT,P_SPINP(b),XS(E)::R1(F)
- Refutation
- K(d);P-FLIGHT,XR(F)
- Try
- R(F);CHECK
- Refutation
- R(g);XB(H)
- Try
- R(F);CHECK
- Refutation
- R(g);XB(H)
- Try
- R(F);CHECK,XS(f)
- Refutation
- R(g);XB(H)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- B(e);::QAB1(B)
- P(b);::QAB1(B)
- P(a);::QAB1(B)
- R(g);::QAB1(B)
- S(f);::QAB1(B)
- Refutation
- B(e);CHECK
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- P(b);::QAB1(B)
- P(a);::QAB1(B)
- R(g);::QAB1(B)
- S(f);::QAB1(B)
- Refutation
- B(e);CHECK
- Try
- Actual
- S(A);
- Threat
- S(A)
- Vars
- B(e);CHECK,S_CUTR(g)::B(H)+R(F)
- R(g);N_GUARD,XB(H)::QAB(B)
- B(e);S_CUTR(g)::QAB(B)
- B(e);SBLOCK::B(H)+R(F)
- B(e);S_CUTQ(h)::QAB(B),XR(g)
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).