MESON Chess Problem Database
Problem Display
PID: 90120 (1N2R1N1/Q1p2K2/2R2P2/brrkBp2/7n/1P6/3P4/1B6 w - - 0 1)
Strerath, Otto
Die Schwalbe, 1949
#2
11 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxb3
- 2.Rxc5#
- 2.Qxc5#
- 1...Rb4
- 2.Rxc5#
- 2.Qxc5#
- 1...Rb7
- 2.Rxc5#
- 2.Qxc5#
- 1...Rxb8
- 2.Rxc5#
- 2.Qxc5#
- 1...Rc1
- 2.Qd4#
- 1...Rc2
- 2.Qd4#
- 1...Rc3
- 2.Qd4#
- 1...Rc4
- 2.bxc4#
- 1...Rxc6
- 2.Qd4#
- 1...Rxb3
- Tries
- 1.Bh2?
- threat
- 2.Rd8#
- 1...Kd4
- 2.Rd8#
- 1...Rxb3
- 2.Qxc5#
- 1...Rxb8
- 2.Qxc5#
- 1...Rxc6
- 2.Se7#
- 1...Rc2
- 2.Re5#
- 1...f4!
- threat
- 1.Bg3?
- threat
- 2.Rd8#
- 1...Kd4
- 2.Rd8#
- 1...Rxb3
- 2.Qxc5#
- 1...Rxb8
- 2.Qxc5#
- 1...Rxc6
- 2.Se7#
- 1...Rc2
- 2.Re5#
- 1...f4!
- threat
- 1.Bxc7?
- threat
- 2.Rd6#
- 2.Rd8#
- 1...Kd4
- 2.Rd6#
- 2.Rd8#
- 1...Rxb3
- 2.Qxc5#
- 1...Rxb8
- 2.Rd6#
- 2.Qxc5#
- 1...Rxc6
- 2.Se7#
- 2.Re5#
- 1...Rb6
- 2.Rd8#
- 1...Rc2
- 2.Rd6#
- 2.Re5#
- 1...Bxc7!
- threat
- 1.Rce6?
- threat
- 2.Se7#
- 2.Rd8#
- 1...Rxb8
- 2.Se7#
- 1...Rc2
- 2.Qd4#
- 1...Rb6
- 2.Se7#
- 1...Rc6
- 2.Se7#
- 2.Qd4#
- 1...Sg6
- 2.Rd8#
- 1...c6
- 2.Se7#
- 2.Rd6#
- 2.Qd7#
- 1...Rxb3!
- threat
- 1.Ree6?
- threat
- 2.Se7#
- 1...Rxb3
- 2.Rxc5#
- 2.Qxc5#
- 1...Rc2
- 2.Qd4#
- 1...Sg6!
- threat
- 1.d4?
- threat
- 2.Se7#
- 2.Rd8#
- 1...Rxb3
- 2.Rxc5#
- 2.Qxc5#
- 1...Rxb8
- 2.Se7#
- 2.Rxc5#
- 2.Qxc5#
- 1...Rxc6
- 2.Se7#
- 1...Sg6
- 2.Rd8#
- 1...Rc2!
- threat
- 1.Bh2?
- Keys
- 1.Bf4!
- threat
- 2.Rd8#
- 1...Kd4
- 2.Rd8#
- 1...Rxb3
- 2.Qxc5#
- 1...Rxb8
- 2.Qxc5#
- 1...Rxc6
- 2.Se7#
- 1...Rc2
- 2.Re5#
- threat
- 1.Bf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- R(d);OGATE::QAR1(G)
- R(d);OGATE::P(C),XR(d)
- R(d);OGATE,XR(E)::QAR1(G)
- Tries
- Try
- B(D);
- Threat
- R(J)
- Vars
- K(e);P-FLIGHT,P_SPINR(d)::R(J)
- R(c);N_GUARD,XP(C)::QAR1(G),XR(d)
- R(c);N_GUARD,XS(I)::QAR1(G),XR(d)
- R(d);XR(E)::S(K)
- R(d);::R1(J)
- Refutation
- P(f);
- Try
- B(D);
- Threat
- R(J)
- Vars
- K(e);P-FLIGHT,P_SPINR(d)::R(J)
- R(c);N_GUARD,XP(C)::QAR1(G),XR(d)
- R(c);N_GUARD,XS(I)::QAR1(G),XR(d)
- R(d);XR(E)::S(K)
- R(d);::R1(J)
- Refutation
- P(f);
- Try
- B(D);XP(g)
- Threat
- DUALS(2)
- Vars
- R(c);N_GUARD,XP(C)::QAR1(G),XR(d)
- R(c);::R(J)
- Refutation
- B(b);XB(D)
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- R(c);XS(I)::S(K)
- R(d);OGATE::QAR1(G)
- R(c);::S(K)
- S(a);::R(J)
- Refutation
- R(c);XP(C)
- Try
- R(J);
- Threat
- S(K)
- Vars
- R(d);OGATE::QAR1(G)
- Refutation
- S(a);
- Try
- P(B);
- Threat
- DUALS(2)
- Vars
- R(d);XR(E)::S(K)
- S(a);::R(J)
- Refutation
- R(d);
- Try
- Actual
- B(D);
- Threat
- R(J)
- Vars
- K(e);P-FLIGHT,P_SPINR(d)::R(J)
- R(c);N_GUARD,XP(C)::QAR1(G),XR(d)
- R(c);N_GUARD,XS(I)::QAR1(G),XR(d)
- R(d);XR(E)::S(K)
- R(d);::R1(J)
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).