MESON Chess Problem Database
Problem Display
PID: 262871 (5R2/2Nb2Q1/q1p5/1r2nn2/1R1PkN1p/3p3B/p1PB2P1/K7 w - - 0 1)
Degener, Udo
Schach, 2022
#2
11 + 10
SOLUTION
- SOUND
- Sets
- 1...Rxb4
- 2.Qxe5#
- 1...Rb6
- 2.Qxe5#
- 1...Rb7
- 2.Qxe5#
- 1...Rb8
- 2.Qxe5#
- 1...Be8
- 2.Bxf5#
- 1...Sf3
- 2.cxd3#
- 1...Sc4
- 2.cxd3#
- 1...Sg4
- 2.cxd3#
- 1...Sg6
- 2.cxd3#
- 1...Sf7
- 2.cxd3#
- 1...c5
- 2.Qxe5#
- 1...Rxb4
- Tries
- 1.Sxd3?
- threat
- 2.Sf2#
- 1...Rxb4
- 2.Qxe5#
- 1...Sg4
- 2.Qxg4#
- 1...Sxd3!
- threat
- 1.Sh5?
- threat
- 2.Sf6#
- 1...Rxb4
- 2.Qxe5#
- 1...Sc4
- 2.Qg4#
- 1...Sg4
- 2.Qxg4#
- 1...Se3
- 2.Rf4#
- 1...c5
- 2.Qxe5#
- 1...dxc2!
- threat
- 1.Sfe6?
- threat
- 2.Sg5#
- 2.Bxf5#
- 1...Rxb4
- 2.Bxf5#
- 2.Qxe5#
- 1...Sxd4
- 2.Sg5#
- 2.Bf5#
- 2.Rxd4#
- 2.Rf4#
- 1...Sxg7
- 2.Sg5#
- 2.Rf4#
- 1...dxc2
- 2.Bxf5#
- 1...Sf3
- 2.Qg4#
- 1...Sc4
- 2.Sg5#
- 2.Qg4#
- 1...Sg4
- 2.Sg5#
- 2.Qxg4#
- 1...Sg6
- 2.Sg5#
- 1...Sf7
- 2.Qg4#
- 1...Se3
- 2.Sg5#
- 2.Rf4#
- 1...Sg3
- 2.Sg5#
- 2.Rf4#
- 1...Sd6
- 2.Sg5#
- 2.Rf4#
- 1...Sh6
- 2.Sg5#
- 2.Rf4#
- 1...Se7
- 2.Sg5#
- 2.Rf4#
- 1...Bxe6!
- threat
- 1.Sxb5?
- threat
- 2.Sc3#
- 2.Qxe5#
- 1...Sxd4
- 2.Sc3#
- 2.Sd6#
- 2.Rxd4#
- 1...Sxg7
- 2.Sc3#
- 2.Sd6#
- 1...cxb5
- 2.Qxe5#
- 1...Qa3
- 2.Qxe5#
- 1...Sf3
- 2.Sc3#
- 2.cxd3#
- 1...Sc4
- 2.Sc3#
- 2.cxd3#
- 1...Sg4
- 2.Sc3#
- 2.cxd3#
- 1...Sg6
- 2.Sc3#
- 2.cxd3#
- 1...Sf7
- 2.Sc3#
- 2.cxd3#
- 1...Qxb5!
- threat
- 1.Scd5?
- threat
- 2.Sc3#
- 2.Sf6#
- 2.Qxe5#
- 1...Rxb4
- 2.Qxe5#
- 1...Sxd4
- 2.Sc3#
- 2.Sf6#
- 1...Sxg7
- 2.Sc3#
- 2.Sf6#
- 1...cxd5
- 2.Qxe5#
- 1...Qa3
- 2.Sf6#
- 2.Qxe5#
- 1...Rc5
- 2.Sf6#
- 2.Qxe5#
- 1...Sf3
- 2.Sc3#
- 2.Sf6#
- 2.cxd3#
- 1...Sc4
- 2.Sc3#
- 2.cxd3#
- 1...Sg4
- 2.Sc3#
- 2.cxd3#
- 1...Sg6
- 2.Sc3#
- 2.Sf6#
- 2.cxd3#
- 1...Sf7
- 2.Sc3#
- 2.Sf6#
- 2.cxd3#
- 1...Se3
- 2.Sc3#
- 2.Qxe5#
- 1...c5
- 2.Sc3#
- 2.Qxe5#
- 1...Rxd5!
- threat
- 1.Sce6?
- threat
- 2.Sg5#
- 2.Bxf5#
- 1...Rxb4
- 2.Bxf5#
- 2.Qxe5#
- 1...Sxd4
- 2.Sg5#
- 2.Bf5#
- 2.Rxd4#
- 1...Sxg7
- 2.Sg5#
- 1...Sf3
- 2.cxd3#
- 1...Sc4
- 2.Sg5#
- 2.cxd3#
- 1...Sg4
- 2.Sg5#
- 2.cxd3#
- 1...Sg6
- 2.Sg5#
- 2.cxd3#
- 1...Sf7
- 2.cxd3#
- 1...Se3
- 2.Sg5#
- 1...Sg3
- 2.Sg5#
- 1...Sd6
- 2.Sg5#
- 1...Sh6
- 2.Sg5#
- 1...Se7
- 2.Sg5#
- 1...Bxe6!
- threat
- 1.dxe5+?
- 1...Sd4
- 2.cxd3#
- 1...Rxb4!
- 1...Sd4
- 1.Sxd3?
- Keys
- 1.Se8!
- threat
- 2.Sf6#
- 1...Rxb4
- 2.Qxe5#
- 1...Bxe8
- 2.Bxf5#
- 1...Sc4
- 2.cxd3#
- 1...Sg4
- 2.cxd3#
- 1...Se3
- 2.Sd6#
- 1...c5
- 2.Qxe5#
- threat
- 1.Se8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- R(e);N_GUARD,XR(F)::QAR1(J),XS(f)
- R(e);N_GUARD::QAR1(J),XS(f)
- B(j);N_GUARD::B(E),XS(g)
- S(f);N_GUARD::P(B),XP(b)
- P(i);S_CUTR(e)::QAR1(J),XS(f)
- Tries
- Try
- S(H);XP(b)
- Threat
- S(H)
- Vars
- R(e);N_GUARD,XR(F)::QAR1(J),XS(f)
- S(f);N_GUARD::QAR2(J),XS(f)
- Refutation
- S(f);XS(H)
- Try
- S(H);
- Threat
- S(H)
- Vars
- R(e);N_GUARD,XR(F)::QAR1(J),XS(f)
- S(f);N_GUARD::QAR2(J)
- S(f);N_GUARD::QAR2(J),XS(f)
- S(g);OGATE::R1(K)
- P(i);S_CUTR(e)::QAR1(J),XS(f)
- Refutation
- P(b);XP(B)
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- P(b);XP(B)::B(E),XS(g)
- S(f);N_GUARD::QAR2(J)
- S(f);::S(H)
- Refutation
- B(j);XS(H)
- Try
- S(I);XR(e)
- Threat
- DUALS(2)
- Vars
- P(i);XS(I)::QAR1(J),XS(f)
- Q(h);::QAR1(J),XS(f)
- Refutation
- Q(h);XS(I)
- Try
- S(I);
- Threat
- DUALS(3)
- Vars
- R(e);XR(F)::QAR1(J),XS(f)
- P(i);XS(I)::QAR1(J),XS(f)
- Refutation
- R(e);XS(I)
- Try
- S(I);
- Threat
- DUALS(2)
- Vars
- S(g);XQ(J)::S(I)
- S(f);N_GUARD::P(B),XP(b)
- S(g);::S(I)
- Refutation
- B(j);XS(I)
- Try
- P(G);CHECK,XS(f)
- Vars
- S(g);P_SPINS(g)::P(B),XP(b)
- Refutation
- R(e);XR(F)
- Try
- Actual
- S(I);
- Threat
- S(I)
- Vars
- R(e);N_GUARD,XR(F)::QAR1(J),XS(f)
- B(j);N_GUARD,XS(I)::B(E),XS(g)
- S(f);N_GUARD::P(B),XP(b)
- S(g);N_GUARD::S(I)
- P(i);S_CUTR(e)::QAR1(J),XS(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).