MESON Chess Problem Database
Problem Display
PID: 230635 (4Q3/B1p2BP1/2nR1K1P/3PpN2/4kpR1/3p2P1/3PP1n1/8 w - - 0 1)
Maleika, Gerhard
Problemas, 2021
#2
13 + 7
SOLUTION
- SOUND
- Sets
- 1...Se1
- 2.Rxf4#
- 1...Se3
- 2.Rxf4#
- 1...Sh4
- 2.Rxf4#
- 1...Sb4
- 2.Qxe5#
- 1...Sd4
- 2.Qxe5#
- 1...Sa5
- 2.Qxe5#
- 1...Sxa7
- 2.Qa4#
- 2.Qxe5#
- 1...Se7
- 2.Qa4#
- 1...Sb8
- 2.Qa4#
- 2.Qxe5#
- 1...Sd8
- 2.Qa4#
- 2.Qxe5#
- 1...cxd6
- 2.Sxd6#
- 1...Se1
- Tries
- 1.Se3?
- threat
- 2.Bg6#
- 1...Sxe3
- 2.Rxf4#
- 1...Sxa7
- 2.Qa4#
- 2.Qxe5#
- 1...Sh4
- 2.Rxf4#
- 1...Sd4
- 2.Qxe5#
- 1...Se7
- 2.Qa4#
- 1...dxe2!
- threat
- 1.Sh4?
- threat
- 2.Bg6#
- 1...Sxh4
- 2.Rxf4#
- 1...Sxa7
- 2.Qa4#
- 2.Qxe5#
- 1...Se3
- 2.Rxf4#
- 1...Sd4
- 2.Qxe5#
- 1...Se7
- 2.Qa4#
- 1...cxd6!
- threat
- 1.Bg1?
- 1...cxd6
- 2.Sxd6#
- 1...Se1
- 2.Rxf4#
- 1...Se3
- 2.Rxf4#
- 1...Sh4
- 2.Rxf4#
- 1...Sb4
- 2.Qxe5#
- 1...Sd4
- 2.Qxe5#
- 1...Sa5
- 2.Qxe5#
- 1...Sa7
- 2.Qa4#
- 2.Qxe5#
- 1...Se7
- 2.Qa4#
- 1...Sb8
- 2.Qa4#
- 2.Qxe5#
- 1...Sd8
- 2.Qa4#
- 2.Qxe5#
- 1...dxe2!
- 1...cxd6
- 1.Bf2?
- 1...cxd6
- 2.Sxd6#
- 1...Se1
- 2.Rxf4#
- 1...Se3
- 2.Rxf4#
- 1...Sh4
- 2.Rxf4#
- 1...Sb4
- 2.Qxe5#
- 1...Sd4
- 2.Qxe5#
- 1...Sa5
- 2.Qxe5#
- 1...Sa7
- 2.Qa4#
- 2.Qxe5#
- 1...Se7
- 2.Qa4#
- 1...Sb8
- 2.Qa4#
- 2.Qxe5#
- 1...Sd8
- 2.Qa4#
- 2.Qxe5#
- 1...dxe2!
- 1...cxd6
- 1.Be3?
- 1...Sxe3
- 2.Rxf4#
- 1...cxd6
- 2.Sxd6#
- 1...Se1
- 2.Rxf4#
- 1...Sh4
- 2.Rxf4#
- 1...Sb4
- 2.Qxe5#
- 1...Sd4
- 2.Qxe5#
- 1...Sa5
- 2.Qxe5#
- 1...Sa7
- 2.Qa4#
- 2.Qxe5#
- 1...Se7
- 2.Qa4#
- 1...Sb8
- 2.Qa4#
- 2.Qxe5#
- 1...Sd8
- 2.Qa4#
- 2.Qxe5#
- 1...dxe2!
- 1...Sxe3
- 1.Bc5?
- 1...cxd6
- 2.Sxd6#
- 1...Se1
- 2.Rxf4#
- 1...Se3
- 2.Rxf4#
- 1...Sh4
- 2.Rxf4#
- 1...Sb4
- 2.Qxe5#
- 1...Sd4
- 2.Qxe5#
- 1...Sa5
- 2.Qxe5#
- 1...Sa7
- 2.Qa4#
- 2.Qxe5#
- 1...Se7
- 2.Qa4#
- 1...Sb8
- 2.Qa4#
- 2.Qxe5#
- 1...Sd8
- 2.Qa4#
- 2.Qxe5#
- 1...dxe2!
- 1...cxd6
- 1.Bg8?
- 1...Sxa7
- 2.Qa4#
- 2.Qxe5#
- 1...cxd6
- 2.Sxd6#
- 1...Se1
- 2.Rxf4#
- 1...Se3
- 2.Rxf4#
- 1...Sh4
- 2.Rxf4#
- 1...Sb4
- 2.Qxe5#
- 1...Sd4
- 2.Qxe5#
- 1...Sa5
- 2.Qxe5#
- 1...Se7
- 2.Qa4#
- 1...Sb8
- 2.Qa4#
- 2.Qxe5#
- 1...Sd8
- 2.Qa4#
- 2.Qxe5#
- 1...dxe2!
- 1...Sxa7
- 1.Rxc6?
- threat
- 2.Rc4#
- 2.Qxe5#
- 1...Se3
- 2.Rxf4#
- 2.Qxe5#
- 1...dxe2!
- threat
- 1.Rd8?
- 1...Sxa7
- 2.Qa4#
- 2.Qxe5#
- 1...Sxd8
- 2.Qa4#
- 2.Qxe5#
- 1...Se7
- 2.Qa4#
- 1...Se1
- 2.Rxf4#
- 1...Se3
- 2.Rxf4#
- 1...Sh4
- 2.Rxf4#
- 1...Sb4
- 2.Qxe5#
- 1...Sd4
- 2.Qxe5#
- 1...Sa5
- 2.Qxe5#
- 1...Sb8
- 2.Qa4#
- 2.Qxe5#
- 1...dxe2!
- 1...Sxa7
- 1.Qe6?
- 1...Sxa7
- 2.Qxe5#
- 1...cxd6
- 2.Sxd6#
- 1...Se1
- 2.Rxf4#
- 1...Se3
- 2.Rxf4#
- 1...Sh4
- 2.Rxf4#
- 1...Sb4
- 2.Qxe5#
- 1...Sd4
- 2.Qxe5#
- 1...Sa5
- 2.Qxe5#
- 1...Se7
- 2.Qxe5#
- 1...Sb8
- 2.Qxe5#
- 1...Sd8
- 2.Qxe5#
- 1...dxe2!
- 1...Sxa7
- 1.gxf4?
- threat
- 2.Sg3#
- 1...Sxa7
- 2.Qa4#
- 2.Qxe5#
- 1...dxe2!
- threat
- 1.dxc6?
- threat
- 2.Bd5#
- 2.Rd4#
- 2.Qxe5#
- 1...cxd6
- 2.Sxd6#
- 1...Se3
- 2.Rxf4#
- 2.Rd4#
- 2.Qxe5#
- 1...dxe2!
- threat
- 1.h7?
- 1...Sxa7
- 2.Qa4#
- 2.Qxe5#
- 1...cxd6
- 2.Sxd6#
- 1...Se1
- 2.Rxf4#
- 1...Se3
- 2.Rxf4#
- 1...Sh4
- 2.Rxf4#
- 1...Sb4
- 2.Qxe5#
- 1...Sd4
- 2.Qxe5#
- 1...Sa5
- 2.Qxe5#
- 1...Se7
- 2.Qa4#
- 1...Sb8
- 2.Qa4#
- 2.Qxe5#
- 1...Sd8
- 2.Qa4#
- 2.Qxe5#
- 1...dxe2!
- 1...Sxa7
- 1.g8Q?
- 1...Sxa7
- 2.Qa4#
- 2.Qxe5#
- 1...cxd6
- 2.Sxd6#
- 1...Se1
- 2.Rxf4#
- 1...Se3
- 2.Rxf4#
- 1...Sh4
- 2.Rxf4#
- 1...Sb4
- 2.Qxe5#
- 1...Sd4
- 2.Qxe5#
- 1...Sa5
- 2.Qxe5#
- 1...Se7
- 2.Qa4#
- 1...Sb8
- 2.Qa4#
- 2.Qxe5#
- 1...Sd8
- 2.Qa4#
- 2.Qxe5#
- 1...dxe2!
- 1...Sxa7
- 1.g8S?
- 1...Sxa7
- 2.Qa4#
- 2.Qxe5#
- 1...cxd6
- 2.Sxd6#
- 1...Se1
- 2.Rxf4#
- 1...Se3
- 2.Rxf4#
- 1...Sh4
- 2.Rxf4#
- 1...Sb4
- 2.Qxe5#
- 1...Sd4
- 2.Qxe5#
- 1...Sa5
- 2.Qxe5#
- 1...Se7
- 2.Qa4#
- 1...Sb8
- 2.Qa4#
- 2.Qxe5#
- 1...Sd8
- 2.Qa4#
- 2.Qxe5#
- 1...dxe2!
- 1...Sxa7
- 1.g8B?
- 1...Sxa7
- 2.Qa4#
- 2.Qxe5#
- 1...cxd6
- 2.Sxd6#
- 1...Se1
- 2.Rxf4#
- 1...Se3
- 2.Rxf4#
- 1...Sh4
- 2.Rxf4#
- 1...Sb4
- 2.Qxe5#
- 1...Sd4
- 2.Qxe5#
- 1...Sa5
- 2.Qxe5#
- 1...Se7
- 2.Qa4#
- 1...Sb8
- 2.Qa4#
- 2.Qxe5#
- 1...Sd8
- 2.Qa4#
- 2.Qxe5#
- 1...dxe2!
- 1...Sxa7
- 1.g8R?
- 1...Sxa7
- 2.Qa4#
- 2.Qxe5#
- 1...cxd6
- 2.Sxd6#
- 1...Se1
- 2.Rxf4#
- 1...Se3
- 2.Rxf4#
- 1...Sh4
- 2.Rxf4#
- 1...Sb4
- 2.Qxe5#
- 1...Sd4
- 2.Qxe5#
- 1...Sa5
- 2.Qxe5#
- 1...Se7
- 2.Qa4#
- 1...Sb8
- 2.Qa4#
- 2.Qxe5#
- 1...Sd8
- 2.Qa4#
- 2.Qxe5#
- 1...dxe2!
- 1...Sxa7
- 1.Se3?
- Keys
- 1.Bg6!
- threat
- 2.Se3#
- 2.Sd4#
- 2.Sh4#
- 2.Se7#
- 1...Sxa7
- 2.Qa4#
- 2.Qxe5#
- 1...dxe2
- 2.Sd4#
- 2.Sh4#
- 1...cxd6
- 2.Se3#
- 2.Se7#
- 1...Se3
- 2.Sxe3#
- 2.Rxf4#
- 1...Sh4
- 2.Sxh4#
- 2.Rxf4#
- 1...Sd4
- 2.Sxd4#
- 2.Qxe5#
- 1...Se7
- 2.Sxe7#
- 2.Qa4#
- threat
- 1.Bg6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 8
- Sets
- S(a);N_GUARD::R1(D),XP(d)
- S(f);N_GUARD::QAR1(M),XP(e)
- S(f);OGATE::QAR(M)
- P(g);XR(G)::S(F),XP(g)
- Tries
- Try
- S(F);
- Threat
- B(K)
- Vars
- S(a);N_GUARD,XS(F)::R1(D),XP(d)
- S(a);N_GUARD::R1(D),XP(d)
- S(f);N_GUARD::QAR1(M),XP(e)
- S(f);OGATE::QAR(M)
- Refutation
- P(b);XP(B)
- Try
- S(F);
- Threat
- B(K)
- Vars
- S(a);N_GUARD,XS(F)::R1(D),XP(d)
- S(a);N_GUARD::R1(D),XP(d)
- S(f);N_GUARD::QAR1(M),XP(e)
- S(f);OGATE::QAR(M)
- Refutation
- P(g);XR(G)
- Try
- B(J);
- Vars
- P(g);XR(G)::S(F),XP(g)
- S(a);N_GUARD::R1(D),XP(d)
- S(f);N_GUARD::QAR1(M),XP(e)
- S(f);OGATE::QAR(M)
- Refutation
- P(b);XP(B)
- Try
- B(J);
- Vars
- P(g);XR(G)::S(F),XP(g)
- S(a);N_GUARD::R1(D),XP(d)
- S(f);N_GUARD::QAR1(M),XP(e)
- S(f);OGATE::QAR(M)
- Refutation
- P(b);XP(B)
- Try
- B(J);
- Vars
- S(a);N_GUARD,XB(J)::R1(D),XP(d)
- P(g);XR(G)::S(F),XP(g)
- S(a);N_GUARD::R1(D),XP(d)
- S(f);N_GUARD::QAR1(M),XP(e)
- S(f);OGATE::QAR(M)
- Refutation
- P(b);XP(B)
- Try
- B(J);
- Vars
- P(g);XR(G)::S(F),XP(g)
- S(a);N_GUARD::R1(D),XP(d)
- S(f);N_GUARD::QAR1(M),XP(e)
- S(f);OGATE::QAR(M)
- Refutation
- P(b);XP(B)
- Try
- B(K);
- Vars
- P(g);XR(G)::S(F),XP(g)
- S(a);N_GUARD::R1(D),XP(d)
- S(f);N_GUARD::QAR1(M),XP(e)
- S(f);OGATE::QAR(M)
- Refutation
- P(b);XP(B)
- Try
- R(G);XS(f)
- Threat
- DUALS(2)
- Refutation
- P(b);XP(B)
- Try
- R(G);
- Vars
- S(f);OGATE::QAR(M)
- S(a);N_GUARD::R1(D),XP(d)
- S(f);N_GUARD::QAR1(M),XP(e)
- Refutation
- P(b);XP(B)
- Try
- Q(M);
- Vars
- S(f);N_GUARD,XB(J)::QAR1(M),XP(e)
- P(g);XR(G)::S(F),XP(g)
- S(a);N_GUARD::R1(D),XP(d)
- S(f);N_GUARD::QAR1(M),XP(e)
- Refutation
- P(b);XP(B)
- Try
- P(C);P_PINP(e),XP(d)
- Threat
- S(F)
- Refutation
- P(b);XP(B)
- Try
- P(E);XS(f)
- Threat
- DUALS(3)
- Vars
- P(g);XR(G)::S(F),XP(g)
- Refutation
- P(b);XP(B)
- Try
- P(I);
- Vars
- P(g);XR(G)::S(F),XP(g)
- S(a);N_GUARD::R1(D),XP(d)
- S(f);N_GUARD::QAR1(M),XP(e)
- S(f);OGATE::QAR(M)
- Refutation
- P(b);XP(B)
- Try
- P(L);
- Vars
- P(g);XR(G)::S(F),XP(g)
- S(a);N_GUARD::R1(D),XP(d)
- S(f);N_GUARD::QAR1(M),XP(e)
- S(f);OGATE::QAR(M)
- Refutation
- P(b);XP(B)
- Try
- P(L);
- Vars
- P(g);XR(G)::S(F),XP(g)
- S(a);N_GUARD::R1(D),XP(d)
- S(f);N_GUARD::QAR1(M),XP(e)
- S(f);OGATE::QAR(M)
- Refutation
- P(b);XP(B)
- Try
- P(L);
- Vars
- P(g);XR(G)::S(F),XP(g)
- S(a);N_GUARD::R1(D),XP(d)
- S(f);N_GUARD::QAR1(M),XP(e)
- S(f);OGATE::QAR(M)
- Refutation
- P(b);XP(B)
- Try
- P(L);
- Vars
- P(g);XR(G)::S(F),XP(g)
- S(a);N_GUARD::R1(D),XP(d)
- S(f);N_GUARD::QAR1(M),XP(e)
- S(f);OGATE::QAR(M)
- Refutation
- P(b);XP(B)
- Try
- Actual
- B(K);
- Threat
- DUALS(4)
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).