MESON Chess Problem Database
Problem Display
PID: 241572 (3Nn3/1B3Q2/1p2r2r/1Pk1Pn2/2P5/2K4b/8/8 w - - 0 1)
Shifrin, Semion
Variantim, 2014
#2
7 + 7
SOLUTION
- SOUND
- Sets
- 1...Rc6
- 2.Qd5#
- 1...Ref6
- 2.Qd5#
- 1...Reg6
- 2.Qd5#
- 1...Re7
- 2.Qd5#
- 1...Rh4
- 2.Sxe6#
- 1...Rh5
- 2.Sxe6#
- 1...Rh7
- 2.Sxe6#
- 1...Rh8
- 2.Sxe6#
- 1...Sg3
- 2.Qf2#
- 1...Sh4
- 2.Qf2#
- 1...Sfd6
- 2.Qf2#
- 1...Se7
- 2.Qf2#
- 1...Sfg7
- 2.Qf2#
- 1...Sed6
- 2.Qc7#
- 1...Sf6
- 2.Sxe6#
- 1...Rc6
- Tries
- 1.Bh1?
- threat
- 2.Sb7#
- 1...Re7
- 2.Qd5#
- 1...Sfd6
- 2.Qf2#
- 1...Sed6
- 2.Qc7#
- 1...Bg2!
- threat
- 1.Bg2?
- threat
- 2.Sb7#
- 1...Re7
- 2.Qd5#
- 1...Sfd6
- 2.Qf2#
- 1...Sed6
- 2.Qc7#
- 1...Bxg2!
- threat
- 1.Bf3?
- threat
- 2.Sb7#
- 1...Re7
- 2.Qd5#
- 1...Sed6
- 2.Qc7#
- 1...Sfd6!
- threat
- 1.Bd5?
- threat
- 2.Sb7#
- 1...Sfd6
- 2.Qf2#
- 1...Sed6
- 2.Qc7#
- 1...Re7!
- threat
- 1.Ba6?
- threat
- 2.Sb7#
- 1...Re7
- 2.Qd5#
- 1...Sfd6
- 2.Qf2#
- 1...Sed6
- 2.Qc7#
- 1...Bg2!
- threat
- 1.Bc6?
- threat
- 2.Sb7#
- 1...Re7
- 2.Qd5#
- 1...Sfd6
- 2.Qf2#
- 1...Sed6!
- threat
- 1.Ba8?
- threat
- 2.Sb7#
- 1...Re7
- 2.Qd5#
- 1...Sfd6
- 2.Qf2#
- 1...Sed6
- 2.Qc7#
- 1...Bg2!
- threat
- 1.Bc8?
- threat
- 2.Sb7#
- 1...Re7
- 2.Qd5#
- 1...Sfd6
- 2.Qf2#
- 1...Sed6
- 2.Qc7#
- 1...Bg2!
- threat
- 1.Bh1?
- Keys
- 1.Be4!
- threat
- 2.Sb7#
- 1...Re7
- 2.Qd5#
- 1...Sfd6
- 2.Qf2#
- 1...Sed6
- 2.Qc7#
- threat
- 1.Be4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 12
- Sets
- R(e);OGATE::QAR1(F)
- R(f);N_GUARD::S(G),XR(e)
- S(c);OGATE::QAB(F)
- S(g);N_GUARD,S_CUTR(e)::QAR2(F)
- S(g);S_CUTR(f)::S(G),XR(e)
- Tries
- Try
- B(E);
- Threat
- S(G)
- Vars
- R(e);OGATE::QAR1(F)
- S(c);OGATE::QAB(F)
- S(g);N_GUARD,S_CUTR(e)::QAR2(F)
- Refutation
- B(a);
- Try
- B(E);
- Threat
- S(G)
- Vars
- R(e);OGATE::QAR1(F)
- S(c);OGATE::QAB(F)
- S(g);N_GUARD,S_CUTR(e)::QAR2(F)
- Refutation
- B(a);XB(E)
- Try
- B(E);
- Threat
- S(G)
- Vars
- R(e);OGATE::QAR1(F)
- S(g);N_GUARD,S_CUTR(e)::QAR2(F)
- Refutation
- S(c);
- Try
- B(E);
- Threat
- S(G)
- Vars
- S(c);OGATE::QAB(F)
- S(g);N_GUARD,S_CUTR(e)::QAR2(F)
- Refutation
- R(e);
- Try
- B(E);
- Threat
- S(G)
- Vars
- R(e);OGATE::QAR1(F)
- S(c);OGATE::QAB(F)
- S(g);N_GUARD,S_CUTR(e)::QAR2(F)
- Refutation
- B(a);
- Try
- B(E);
- Threat
- S(G)
- Vars
- R(e);OGATE::QAR1(F)
- S(c);OGATE::QAB(F)
- Refutation
- S(g);
- Try
- B(E);
- Threat
- S(G)
- Vars
- R(e);OGATE::QAR1(F)
- S(c);OGATE::QAB(F)
- S(g);N_GUARD,S_CUTR(e)::QAR2(F)
- Refutation
- B(a);
- Try
- B(E);
- Threat
- S(G)
- Vars
- R(e);OGATE::QAR1(F)
- S(c);OGATE::QAB(F)
- S(g);N_GUARD,S_CUTR(e)::QAR2(F)
- Refutation
- B(a);
- Try
- Actual
- B(E);
- Threat
- S(G)
- Vars
- R(e);OGATE::QAR1(F)
- S(c);OGATE::QAB(F)
- S(g);N_GUARD,S_CUTR(e)::QAR2(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).