MESON Chess Problem Database
Problem Display
PID: 135184 (B1k2N1R/P7/5N2/B7/2p3R1/3r2P1/b3r2q/Kn6 w - - 0 1)
Heyl, Peter
Die Schwalbe, 2009
#2
9 + 7
SOLUTION
- SOUND
- Sets
- 1...Rb3
- 2.Rxc4#
- 1...Rb3
- Tries
- 1.Se6+?
- 1...Rd8
- 2.Rxd8#
- 1...Qxh8!
- 1...Rd8
- 1.Sg6+?
- 1...Re8
- 2.Se7#
- 1...Rd8
- 2.Rxd8#
- 1...Qxh8!
- 1...Re8
- 1.S8d7+?
- 1...Re8
- 2.Rxe8#
- 1...Qxh8!
- 1...Re8
- 1.S8h7+?
- 1...Rd8
- 2.Rxd8#
- 1...Re8!
- 1...Rd8
- 1.Be4?
- threat
- 2.a8Q#
- 2.a8R#
- 1...Qxg3
- 2.S8d7#
- 1...Qxh8
- 2.a8Q#
- 2.a8R#
- 1...Rxg3
- 2.S8h7#
- 2.a8Q#
- 2.a8R#
- 1...Qg1
- 2.S8d7#
- 2.a8Q#
- 2.a8R#
- 1...Qh1
- 2.a8Q#
- 2.a8R#
- 1...Qf2
- 2.S8d7#
- 2.a8Q#
- 2.a8R#
- 1...Qg2
- 2.S8d7#
- 2.a8Q#
- 2.a8R#
- 1...Qh3
- 2.a8Q#
- 2.a8R#
- 1...Qh4
- 2.a8Q#
- 2.a8R#
- 1...Qh5
- 2.a8Q#
- 2.a8R#
- 1...Qh6
- 2.a8Q#
- 2.a8R#
- 1...Qh7
- 2.a8Q#
- 2.a8R#
- 1...Re1
- 2.a8Q#
- 2.a8R#
- 1...Rc2
- 2.a8Q#
- 2.a8R#
- 1...Red2
- 2.a8Q#
- 2.a8R#
- 1...Rf2
- 2.a8Q#
- 2.a8R#
- 1...Rg2
- 2.a8Q#
- 2.a8R#
- 1...Ree3
- 2.a8Q#
- 2.a8R#
- 1...Rd1
- 2.a8Q#
- 2.a8R#
- 1...Rdd2
- 2.a8Q#
- 2.a8R#
- 1...Ra3
- 2.S8h7#
- 2.a8Q#
- 2.a8R#
- 1...Rb3
- 2.S8h7#
- 1...Rc3
- 2.S8h7#
- 2.a8Q#
- 2.a8R#
- 1...Rde3
- 2.S8h7#
- 2.a8Q#
- 2.a8R#
- 1...Rf3
- 2.S8h7#
- 2.a8Q#
- 2.a8R#
- 1...Rd4
- 2.a8Q#
- 2.a8R#
- 1...Rd6
- 2.a8Q#
- 2.a8R#
- 1...Rd7
- 2.a8Q#
- 2.a8R#
- 1...Rd8
- 2.a8Q#
- 2.a8R#
- 1...Bb3
- 2.a8Q#
- 2.a8R#
- 1...Sd2
- 2.a8Q#
- 2.a8R#
- 1...Sa3
- 2.a8Q#
- 2.a8R#
- 1...Sc3
- 2.a8Q#
- 2.a8R#
- 1...c3
- 2.a8Q#
- 2.a8R#
- 1...Rb2!
- threat
- 1.Se6+?
- Keys
- 1.Bd5!
- threat
- 2.a8Q#
- 2.a8R#
- 1...Qxg3
- 2.Se6#
- 1...Qxh8
- 2.a8Q#
- 2.a8R#
- 1...Rxg3
- 2.a8Q#
- 2.a8R#
- 1...Rb2
- 2.S8h7#
- 1...Qg1
- 2.Se6#
- 2.a8Q#
- 2.a8R#
- 1...Qh1
- 2.a8Q#
- 2.a8R#
- 1...Qf2
- 2.Se6#
- 2.a8Q#
- 2.a8R#
- 1...Qg2
- 2.Se6#
- 2.a8Q#
- 2.a8R#
- 1...Qh3
- 2.a8Q#
- 2.a8R#
- 1...Qh4
- 2.a8Q#
- 2.a8R#
- 1...Qh5
- 2.a8Q#
- 2.a8R#
- 1...Qh6
- 2.a8Q#
- 2.a8R#
- 1...Qh7
- 2.a8Q#
- 2.a8R#
- 1...Re1
- 2.a8Q#
- 2.a8R#
- 1...Rc2
- 2.S8h7#
- 2.a8Q#
- 2.a8R#
- 1...Red2
- 2.S8h7#
- 2.a8Q#
- 2.a8R#
- 1...Rf2
- 2.S8h7#
- 2.a8Q#
- 2.a8R#
- 1...Rg2
- 2.S8h7#
- 2.a8Q#
- 2.a8R#
- 1...Ree3
- 2.a8Q#
- 2.a8R#
- 1...Re4
- 2.a8Q#
- 2.a8R#
- 1...Re5
- 2.a8Q#
- 2.a8R#
- 1...Re6
- 2.a8Q#
- 2.a8R#
- 1...Re7
- 2.a8Q#
- 2.a8R#
- 1...Re8
- 2.a8Q#
- 2.a8R#
- 1...Rd1
- 2.a8Q#
- 2.a8R#
- 1...Rdd2
- 2.a8Q#
- 2.a8R#
- 1...Ra3
- 2.a8Q#
- 2.a8R#
- 1...Rb3
- 2.Rxc4#
- 1...Rc3
- 2.a8Q#
- 2.a8R#
- 1...Rde3
- 2.a8Q#
- 2.a8R#
- 1...Rf3
- 2.a8Q#
- 2.a8R#
- 1...Rd4
- 2.a8Q#
- 2.a8R#
- 1...Bb3
- 2.a8Q#
- 2.a8R#
- 1...Sd2
- 2.a8Q#
- 2.a8R#
- 1...Sa3
- 2.a8Q#
- 2.a8R#
- 1...Sc3
- 2.a8Q#
- 2.a8R#
- 1...c3
- 2.a8Q#
- 2.a8R#
- threat
- 1.Bd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(e);S_CUTB(b)::R(C),XP(f)
- Tries
- Try
- S(H);CHECK
- Vars
- R(e);N_GUARD,P_SPINR(e)::R1(I),XR(e)
- Refutation
- Q(d);P_PINS(E),XR(I)
- Try
- S(H);CHECK
- Vars
- R(c);P_SPINR(c)::S(H)
- R(e);N_GUARD,P_SPINR(e)::R1(I),XR(e)
- Refutation
- Q(d);P_PINS(E),XR(I)
- Try
- S(H);CHECK
- Vars
- R(c);N_GUARD,P_SPINR(c)::R(I),XR(c)
- Refutation
- Q(d);P_PINS(E),XR(I)
- Try
- S(H);CHECK
- Vars
- R(e);N_GUARD,P_SPINR(e)::R1(I),XR(e)
- Refutation
- R(c);P_SPINR(c)
- Try
- B(G);
- Threat
- P=Q
- Vars
- Q(d);N_GUARD,XP(B)::R(I)+S(H)
- Q(d);P_PINS(E),XR(I)::P=Q
- Q(d);::P=Q
- R(c);::P=Q
- R(e);::P=Q
- R(e);N_GUARD::R(I)+S(H)
- B(b);::P=Q
- S(a);::P=Q
- P(f);::P=Q
- Refutation
- R(c);
- Try
- Actual
- B(G);
- Threat
- P=Q
- Vars
- Q(d);N_GUARD,XP(B)::R(I)+S(H)
- Q(d);P_PINS(E),XR(I)::P=Q
- R(e);XP(B)::P=Q
- R(c);N_GUARD::R(I)+S(H)
- Q(d);::P=Q
- R(c);::P=Q
- R(e);::P=Q
- R(e);S_CUTB(b)::R(C),XP(f)
- B(b);::P=Q
- S(a);::P=Q
- P(f);::P=Q
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).