MESON Chess Problem Database
Problem Display
PID: 268350 (8/5pn1/3N3p/1K2Q3/pbp2rkN/q3R2R/2r4B/1b2nB2 w - - 0 1)
Gvozdjak, Peter
Die Schwalbe, 2022
#2
8 + 12
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Reg3#
- 1...Qb2
- 2.Reg3#
- 1...Qa1
- 2.Reg3#
- 1...Qa2
- 2.Reg3#
- 1...Re4
- 2.Rxe4#
- 1...Bc3
- 2.Reg3#
- 1...Sd3
- 2.Reg3#
- 1...c3
- 2.Reg3#
- 1...h5
- 2.Qxf4#
- 2.Qxg7#
- 1...Qc1
- Tries
- 1.Sg2?
- threat
- 2.Rhg3#
- 2.Rh4#
- 2.Qxf4#
- 2.Qxg7#
- 1...Qxe3
- 2.Sxe3#
- 1...Rxg2
- 2.Qxf4#
- 1...Rxf1
- 2.Rhg3#
- 2.Rh4#
- 2.Qg3#
- 2.Qxg7#
- 1...Bxd6
- 2.Rhg3#
- 2.Rh4#
- 1...Sxg2
- 2.Qxg7#
- 1...Rf3
- 2.Rh4#
- 1...Sf3
- 2.Rg3#
- 1...Sf5
- 2.Qxf4#
- 1...f5
- 2.Qxf4#
- 2.Qxg7#
- 1...Qb2
- 2.Reg3#
- 2.Rhg3#
- 2.Rh4#
- 2.Qxf4#
- 1...Qa1
- 2.Reg3#
- 2.Rhg3#
- 2.Rh4#
- 2.Qxf4#
- 1...Qc3
- 2.Rhg3#
- 2.Rh4#
- 2.Qxf4#
- 1...Qd3
- 2.Rhg3#
- 2.Rh4#
- 2.Qxf4#
- 1...Rc1
- 2.Rhg3#
- 2.Rh4#
- 2.Qxf4#
- 1...Ra2
- 2.Rhg3#
- 2.Rh4#
- 2.Qxf4#
- 1...Rb2
- 2.Rhg3#
- 2.Rh4#
- 2.Qxf4#
- 1...Rd2
- 2.Rhg3#
- 2.Rh4#
- 2.Qxf4#
- 1...Re2
- 2.Rhg3#
- 2.Rh4#
- 2.Qxf4#
- 1...Rcf2
- 2.Rhg3#
- 2.Rh4#
- 1...Rc3
- 2.Rhg3#
- 2.Rh4#
- 2.Qxf4#
- 1...Rff2
- 2.Rhg3#
- 2.Rh4#
- 2.Qg3#
- 2.Qxg7#
- 1...Rd4
- 2.Rhg3#
- 2.Rh4#
- 2.Qg3#
- 2.Qxg7#
- 1...Re4
- 2.Rhg3#
- 2.Rh4#
- 2.Qg3#
- 2.Qxg7#
- 1...Rf6
- 2.Rhg3#
- 2.Rh4#
- 2.Qg3#
- 1...Bc3
- 2.Reg3#
- 2.Rhg3#
- 2.Rh4#
- 2.Qxf4#
- 1...Sd3
- 2.Reg3#
- 2.Rhg3#
- 2.Rh4#
- 2.Qxg7#
- 1...Sh5
- 2.Rh4#
- 2.Qxh5#
- 1...Se6
- 2.Rhg3#
- 2.Rh4#
- 2.Qh5#
- 1...Se8
- 2.Rhg3#
- 2.Rh4#
- 2.Qxf4#
- 2.Qh5#
- 1...f6
- 2.Rhg3#
- 2.Rh4#
- 2.Qxf4#
- 1...Rf5!
- threat
- 1.Shf5?
- threat
- 2.Sxh6#
- 2.Qxf4#
- 2.Qxg7#
- 1...Kg5
- 2.Qxg7#
- 1...Qxe3
- 2.Sxe3#
- 2.Sxh6#
- 2.Qxg7#
- 1...Rxh2
- 2.Sxh6#
- 2.Qxg7#
- 1...Rxf1
- 2.Sxh6#
- 2.Qg3#
- 2.Qxg7#
- 1...Bxd6
- 2.Sxh6#
- 1...Sxf5
- 2.Qxf4#
- 1...Qb2
- 2.Sxh6#
- 2.Reg3#
- 2.Qxf4#
- 1...Qa1
- 2.Sxh6#
- 2.Reg3#
- 2.Qxf4#
- 1...Qc3
- 2.Sxh6#
- 2.Qxf4#
- 1...Rcf2
- 2.Sxh6#
- 2.Qxg7#
- 1...Rff2
- 2.Sxh6#
- 2.Qg3#
- 2.Qxg7#
- 1...Rf3
- 2.Sxh6#
- 2.Qxg7#
- 1...Rd4
- 2.Sxh6#
- 2.Qg3#
- 2.Qxg7#
- 1...Re4
- 2.Sxh6#
- 2.Qg3#
- 2.Qxg7#
- 1...Bc3
- 2.Sxh6#
- 2.Reg3#
- 2.Qxf4#
- 1...Sg2
- 2.Sxh6#
- 2.Qxg7#
- 1...Sd3
- 2.Sxh6#
- 2.Reg3#
- 2.Qxg7#
- 1...Sf3
- 2.Sxh6#
- 2.Qxf4#
- 1...Sh5
- 2.Sxh6#
- 1...Se6
- 2.Sxh6#
- 1...Se8
- 2.Sxh6#
- 2.Qxf4#
- 1...h5
- 2.Sh6#
- 2.Rhg3#
- 2.Qxf4#
- 2.Qxg7#
- 1...f6
- 2.Sxh6#
- 2.Qxf4#
- 1...Rxf5!
- threat
- 1.Sg2?
- Keys
- 1.Sf3!
- threat
- 2.Rg3#
- 2.Rh4#
- 2.Qxf4#
- 2.Qxg7#
- 1...Qxe3
- 2.Rg3#
- 2.Qxg7#
- 1...Rxh2
- 2.Sxh2#
- 1...Rxf3
- 2.Qxg7#
- 1...Bxd6
- 2.Rg3#
- 2.Rh4#
- 1...Sxf3
- 2.Qxf4#
- 1...Rg2
- 2.Rh4#
- 1...Sg2
- 2.Rg3#
- 1...Qb2
- 2.Rg3#
- 2.Rh4#
- 2.Qxf4#
- 1...Qa1
- 2.Rg3#
- 2.Rh4#
- 2.Qxf4#
- 1...Qc3
- 2.Rg3#
- 2.Rh4#
- 2.Qxf4#
- 1...Qd3
- 2.Rg3#
- 2.Rh4#
- 2.Qxf4#
- 1...Rc1
- 2.Rg3#
- 2.Rh4#
- 2.Qxf4#
- 1...Ra2
- 2.Rg3#
- 2.Rh4#
- 2.Qxf4#
- 1...Rb2
- 2.Rg3#
- 2.Rh4#
- 2.Qxf4#
- 1...Rd2
- 2.Rg3#
- 2.Rh4#
- 2.Qxf4#
- 1...Re2
- 2.Rg3#
- 2.Rh4#
- 2.Qxf4#
- 1...Rf2
- 2.Rg3#
- 2.Rh4#
- 2.Qxf4#
- 1...Rc3
- 2.Rg3#
- 2.Rh4#
- 2.Qxf4#
- 1...Rd4
- 2.Rg3#
- 2.Rh4#
- 2.Qg3#
- 2.Qxd4#
- 2.Qxg7#
- 1...Re4
- 2.Rxe4#
- 2.Rg3#
- 2.Rh4#
- 2.Qg3#
- 2.Qxg7#
- 2.Qxe4#
- 1...Rf5
- 2.Rh4#
- 1...Rf6
- 2.Rg3#
- 2.Rh4#
- 2.Qg3#
- 1...Bc3
- 2.Rg3#
- 2.Rh4#
- 2.Qxf4#
- 1...Sd3
- 2.Rg3#
- 2.Rh4#
- 2.Qxg7#
- 1...Sf5
- 2.Qxf4#
- 1...Sh5
- 2.Rh4#
- 2.Qxh5#
- 1...Se6
- 2.Rg3#
- 2.Rh4#
- 2.Qh5#
- 1...Se8
- 2.Rg3#
- 2.Rh4#
- 2.Qxf4#
- 2.Qh5#
- 1...f5
- 2.Rh4#
- 2.Qxf4#
- 2.Qxg7#
- 1...f6
- 2.Rg3#
- 2.Rh4#
- 2.Qxf4#
- threat
- 1.Sf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 8
- Sets
- Q(d);N_GUARD::R1(C)
- R(h);OGATEB::R(C),XR(h)
- B(f);S_CUTQ(d)::R1(C)
- S(b);S_CUTQ(d)::R1(C)
- P(g);S_CUTQ(d)::R1(C)
- Tries
- Try
- S(E);
- Threat
- DUALS(4)
- Vars
- Q(d);XR(C)::S(E),XQ(d)
- R(c);XS(E)::QAR1(G),XR(h)
- S(b);XS(E)::QAR(G),XS(l)
- R(h);::R1(D)
- S(b);::R1(D)
- S(l);::QAR1(G),XR(h)
- Refutation
- R(h);P_PINQ(G)
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- K(i);P-FLIGHT::QAR2(G),XS(l)
- B(f);XS(H)::S(E),XP(j)
- S(l);XS(E)::QAR1(G),XR(h)
- S(l);::S(E),XP(j)
- Refutation
- R(h);P_PINQ(G),XS(E)
- Try
- Actual
- S(E);
- Threat
- DUALS(4)
- Vars
- R(c);XB(B)::S(E),XR(c)
- R(h);XS(E)::QAR(G),XS(l)
- S(b);XS(E)::QAR1(G),XR(h)
- R(c);::R1(D)
- S(b);::R1(D)
- R(h);P_PINQ(G)::R1(D)
- S(l);::QAR1(G),XR(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).