MESON Chess Problem Database
Problem Display
PID: 240304 (1n6/4r3/N1P1kNPn/KQP2R2/p4Pp1/8/qP3r2/1B6 w - - 0 1)
Maleika, Gerhard
Problem-Forum, 2004
#2
11 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qc4
- 2.Qxc4#
- 1...Qa1
- 2.Qc4#
- 1...Qxb2
- 2.Qc4#
- 1...Qa3
- 2.Qc4#
- 1...Rf1
- 2.Qe2#
- 1...Re2
- 2.Qxe2#
- 1...Sxc6+
- 2.Qxc6#
- 1...Sd7
- 2.Sc7#
- 1...Qc4
- Tries
- 1.Sd7?
- threat
- 2.Sc7#
- 2.Sf8#
- 2.Re5#
- 1...Sxc6+
- 2.Qxc6#
- 1...Qxb1
- 2.Re5#
- 1...Qxb2
- 2.Sc7#
- 2.Sf8#
- 2.Qc4#
- 1...Sxf5
- 2.Sc7#
- 2.Bxa2#
- 1...Sxa6
- 2.Sf8#
- 2.Re5#
- 1...Sxd7
- 2.Sc7#
- 1...Rc2
- 2.Re5#
- 1...Rf7
- 2.Re5#
- 1...Rg7
- 2.Re5#
- 1...Rh7
- 2.Re5#
- 1...Re8
- 2.Re5#
- 1...Qd5
- 2.Sc7#
- 2.Sf8#
- 2.Rf6#
- 1...Re2
- 2.Sc7#
- 2.Sf8#
- 2.Qxe2#
- 1...Sf7
- 2.Sc7#
- 2.Sf8#
- 1...Rxd7!
- threat
- 1.Sh7?
- threat
- 2.Sg5#
- 2.Sf8#
- 2.Re5#
- 1...Sxc6+
- 2.Qxc6#
- 1...Qxb1
- 2.Re5#
- 1...Qxb2
- 2.Sg5#
- 2.Sf8#
- 2.Qc4#
- 1...Rxf4
- 2.Sg5#
- 2.Sf8#
- 1...Sxf5
- 2.Bxa2#
- 1...Rc2
- 2.Re5#
- 1...Ra7
- 2.Re5#
- 1...Rb7
- 2.Re5#
- 1...Rc7
- 2.Re5#
- 1...Rd7
- 2.Re5#
- 1...Rf7
- 2.Re5#
- 1...Rg7
- 2.Re5#
- 1...Re8
- 2.Re5#
- 1...Qd5
- 2.Sg5#
- 2.Sf8#
- 2.Rf6#
- 1...Re2
- 2.Sg5#
- 2.Sf8#
- 2.Qxe2#
- 1...Sf7
- 2.Sf8#
- 1...Sd7
- 2.Sc7#
- 2.Sg5#
- 1...Rxh7!
- threat
- 1.Qd3?
- threat
- 2.Bxa2#
- 2.Qe4#
- 2.Qe3#
- 2.Qd6#
- 1...Qxb1
- 2.Qd5#
- 1...Qxb2
- 2.Qc4#
- 2.Qd5#
- 2.Qd6#
- 1...Rxb2
- 2.Qe4#
- 2.Qe3#
- 2.Qd6#
- 1...Rxf4
- 2.Qd6#
- 1...Sxf5
- 2.Qxf5#
- 1...Ra7
- 2.Qe4#
- 2.Qe3#
- 2.Qd6#
- 1...Rb7
- 2.Qe4#
- 2.Qe3#
- 2.Qd6#
- 1...Rc7
- 2.Qe4#
- 2.Qe3#
- 2.Qd6#
- 1...Rd7
- 2.Qe4#
- 2.Qe3#
- 1...Rf7
- 2.Qe4#
- 2.Qe3#
- 2.Qd6#
- 1...Rg7
- 2.Qe4#
- 2.Qe3#
- 2.Qd6#
- 1...Rh7
- 2.Qe4#
- 2.Qe3#
- 2.Qd6#
- 1...Re8
- 2.Qe4#
- 2.Qe3#
- 2.Qd6#
- 1...Qb3
- 2.Qe4#
- 2.Qd6#
- 1...Qc4
- 2.Qxc4#
- 2.Qd6#
- 1...Qd5
- 2.Qxd5#
- 1...Qa1
- 2.Qc4#
- 2.Qe4#
- 2.Qe3#
- 2.Qd5#
- 2.Qd6#
- 1...Qa3
- 2.Qc4#
- 2.Qe4#
- 2.Qd5#
- 2.Qd6#
- 1...Rc2
- 2.Qe4#
- 1...Rd2
- 2.Bxa2#
- 2.Qe4#
- 2.Qe3#
- 1...Re2
- 2.Bxa2#
- 2.Qxe2#
- 2.Qd6#
- 1...Rf3
- 2.Bxa2#
- 2.Qe4#
- 2.Qd6#
- 1...Sf7
- 2.Bxa2#
- 1...Sd7
- 2.Sc7#
- 2.Bxa2#
- 2.Qd6#
- 1...Sxc6+!
- threat
- 1.Sd7?
- Keys
- 1.Sh5!
- threat
- 2.Re5#
- 1...Sxc6+
- 2.Qxc6#
- 1...Qxb2
- 2.Qc4#
- 1...Rxf4
- 2.Sxf4#
- 1...Sxf5
- 2.Bxa2#
- 1...Qd5
- 2.Rf6#
- 1...Re2
- 2.Qxe2#
- 1...Sf7
- 2.Sg7#
- 1...Sd7
- 2.Sc7#
- threat
- 1.Sh5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 4
- Sets
- Q(a);N_GUARD::QAB(E),XQ(a)
- Q(a);N_GUARD::QAB(E)
- Q(a);N_GUARD,XP(B)::QAB(E)
- R(b);N_GUARD::QAR(E)
- R(b);N_GUARD::QAR(E),XR(b)
- S(h);CHECK,OGATE,XP(I)::QAR2(E),XS(h)
- S(h);S_CUTR(g)::S(H)
- Tries
- Try
- S(J);
- Threat
- DUALS(3)
- Vars
- S(h);CHECK,OGATE,XP(I)::QAR2(E),XS(h)
- Q(a);XB(A)::R1(G)
- S(h);XS(J)::S(H)
- R(b);::R1(G)
- R(g);::R1(G)
- Refutation
- R(g);XS(J)
- Try
- S(J);
- Threat
- DUALS(3)
- Vars
- S(h);CHECK,OGATE,XP(I)::QAR2(E),XS(h)
- Q(a);XB(A)::R1(G)
- S(f);SBLOCK,XR(G)::B(A),XQ(a)
- R(b);::R1(G)
- R(g);P_PINS(H)::R1(G)
- R(g);::R1(G)
- S(f);::S(J)
- Refutation
- R(g);XS(J)
- Try
- Q(E);
- Threat
- DUALS(4)
- Vars
- Q(a);N_GUARD,XB(A)::QAB1(E)
- R(b);XP(C)::QAR1(E)
- S(f);OGATE,XR(G)::QAB1(E),XS(f)
- Q(a);N_GUARD,P_PINP(F)::QAB1(E),XQ(a)
- R(b);::QAR2(E)
- S(f);::B(A),XQ(a)
- Refutation
- S(h);CHECK,XP(I)
- Try
- Actual
- S(J);
- Threat
- R1(G)
- Vars
- S(h);CHECK,OGATE,XP(I)::QAR2(E),XS(h)
- Q(a);N_GUARD,XP(B)::QAB(E)
- R(b);XP(C)::S(J),XR(b)
- S(f);SBLOCK,XR(G)::B(A),XQ(a)
- Q(a);SBLOCK::R1(G)
- R(b);N_GUARD::QAR(E),XR(b)
- S(f);S_CUTR(g)::S(J)
- S(h);S_CUTR(g)::S(H)
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).