MESON Chess Problem Database
Problem Display
PID: 258429 (7q/8/p7/1r1Q2n1/1B1p4/nPNkP1p1/3N1P2/2K1R3 w - - 0 1)
Maleika, Gerhard
Best Problems, 2022
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Qh1
- 2.Qxd4#
- 1...Qh2
- 2.Qxd4#
- 1...Qh3
- 2.Qxd4#
- 1...Qh5
- 2.Qxd4#
- 1...Qh6
- 2.Qxd4#
- 1...Qh7
- 2.Qxd4#
- 1...Qa8
- 2.Qxd4#
- 1...Qb8
- 2.Qxd4#
- 1...Qc8
- 2.Qxd4#
- 1...Qe8
- 2.Qxd4#
- 1...Qf8
- 2.Qxd4#
- 1...Qg8
- 2.Qxd4#
- 1...Sb1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sf3
- 2.Qe4#
- 1...Sh3
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Se6
- 2.Qe4#
- 1...Sf7
- 2.Qe4#
- 1...Sh7
- 2.Qe4#
- 1...Qh1
- Tries
- 1.Sdb1?
- threat
- 2.Rd1#
- 1...Sxb1
- 2.Qc4#
- 1...Qh1
- 2.Qxd4#
- 1...Qh5
- 2.Qxd4#
- 1...Sc4
- 2.Qxc4#
- 1...Sf3
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...gxf2!
- threat
- 1.Sf1?
- threat
- 2.Rd1#
- 1...Qh5
- 2.Qxd4#
- 1...Sb1
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sf3
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Rxb4!
- threat
- 1.Sc4?
- threat
- 2.Sb2#
- 2.Rd1#
- 1...Sxc4
- 2.Qxc4#
- 1...Qh1
- 2.Sb2#
- 2.Se5#
- 2.Qxd4#
- 1...Qh5
- 2.Sb2#
- 2.Se5#
- 2.Qxd4#
- 1...Sb1
- 2.Sb2#
- 1...Sf3
- 2.Sb2#
- 2.Qe4#
- 1...Se4
- 2.Sb2#
- 2.Qxe4#
- 1...Rxb4!
- threat
- 1.Sde4?
- threat
- 2.Rd1#
- 1...Sxe4
- 2.Qxe4#
- 1...gxf2
- 2.Sxf2#
- 1...Qh1
- 2.Qxd4#
- 1...Qh5
- 2.Qxd4#
- 1...Sb1
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sf3!
- threat
- 1.Qf5+?
- 1...Se4
- 2.Qxe4#
- 1...Rxf5!
- 1...Se4
- 1.Sdb1?
- Keys
- 1.Rd1!
- threat
- 2.Sdb1#
- 2.Sf1#
- 2.Sf3#
- 2.Sc4#
- 2.Sde4#
- 1...Rxb4
- 2.Sdb1#
- 2.Sde4#
- 1...gxf2
- 2.Sf1#
- 2.Sc4#
- 1...Qh1
- 2.Sf1#
- 2.Qxd4#
- 1...Qh5
- 2.Sf3#
- 2.Qxd4#
- 1...Sb1
- 2.Sdxb1#
- 2.Qc4#
- 1...Sc4
- 2.Sxc4#
- 2.Qxc4#
- 1...Sf3
- 2.Sxf3#
- 2.Qe4#
- 1...Se4
- 2.Sdxe4#
- 2.Qxe4#
- threat
- 1.Rd1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 21
- Sets
- Q(h);N_GUARD,P_PINR(B)::QAR1(I),XP(d)
- Q(h);N_GUARD::QAR1(I),XP(d)
- Q(h);N_GUARD,P_PINS(F)::QAR1(I),XP(d)
- S(a);N_GUARD::QAB1(I)
- S(a);N_GUARD::QAB1(I),XS(a)
- S(f);N_GUARD::QAB1(I)
- S(f);N_GUARD::QAB1(I),XS(f)
- Tries
- Try
- S(C);
- Threat
- R(B)
- Vars
- S(a);N_GUARD,XS(C)::QAB1(I)
- Q(h);N_GUARD,P_PINR(B)::QAR1(I),XP(d)
- Q(h);N_GUARD::QAR1(I),XP(d)
- S(a);N_GUARD::QAB1(I),XS(a)
- S(f);N_GUARD::QAB1(I)
- S(f);N_GUARD::QAB1(I),XS(f)
- Refutation
- P(c);XP(D)
- Try
- S(C);
- Threat
- R(B)
- Vars
- Q(h);N_GUARD::QAR1(I),XP(d)
- S(a);N_GUARD::QAB1(I)
- S(a);N_GUARD::QAB1(I),XS(a)
- S(f);N_GUARD::QAB1(I)
- S(f);N_GUARD::QAB1(I),XS(f)
- Refutation
- R(e);XB(H)
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- S(a);OGATE,XS(C)::QAB1(I),XS(a)
- S(a);::S(C)
- Refutation
- R(e);XB(H)
- Try
- S(C);
- Threat
- R(B)
- Vars
- S(f);OGATE,XS(C)::QAB1(I),XS(f)
- P(c);XP(D)::S(C),XP(c)
- Q(h);N_GUARD,P_PINR(B)::QAR1(I),XP(d)
- Q(h);N_GUARD::QAR1(I),XP(d)
- S(a);N_GUARD::QAB1(I)
- S(a);N_GUARD::QAB1(I),XS(a)
- Refutation
- S(f);
- Try
- Q(I);CHECK,N_PINP(d)
- Vars
- S(f);N_GUARD,P_SPINS(f)::QAB1(I),XS(f)
- Refutation
- R(e);XQ(I)
- Try
- Actual
- R(B);
- Threat
- DUALS(5)
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).