MESON Chess Problem Database
Problem Display
PID: 224210 (2R4K/5p2/2nB3p/p4nNp/RN1k4/rPp5/p4P2/3B2Q1 w - - 0 1)
Chocolous, Jiri
Bahn Frei, 1888
#2
10 + 10
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Se3
- 2.fxe3#
- 1...Sg3
- 2.fxg3#
- 2.f3#
- 2.f4#
- 1...Sh4
- 2.f3#
- 2.f4#
- 1...Sxd6
- 2.f4#
- 1...Sfe7
- 2.f3#
- 2.f4#
- 1...Sg7
- 2.f3#
- 2.f4#
- 1...Se5
- 2.Bc5#
- 1...Sa7
- 2.Rc4#
- 1...Sce7
- 2.Rc4#
- 1...Sb8
- 2.Rc4#
- 1...Sd8
- 2.Rc4#
- 1...h4
- 2.Qg4#
- 1...Se3
- Tries
- 1.Se6+?
- 1...Ke4
- 2.Qh1#
- 2.Qg2#
- 2.f3#
- 1...fxe6!
- 1...Ke4
- 1.Bc2?
- threat
- 2.Sf3#
- 2.Qd1#
- 1...Sxd6
- 2.f4#
- 1...Sxb4
- 2.Qd1#
- 1...axb4
- 2.Qd1#
- 1...hxg5
- 2.Qd1#
- 1...a1Q
- 2.Sf3#
- 1...a1R
- 2.Sf3#
- 1...Se3
- 2.Sf3#
- 2.fxe3#
- 1...Sh4
- 2.Qd1#
- 2.f3#
- 2.f4#
- 1...Se5
- 2.Bc5#
- 1...Rxb3!
- threat
- 1.Qe1?
- threat
- 2.Sf3#
- 2.Qe4#
- 1...Rxb3
- 2.Qe4#
- 1...Sxd6
- 2.Qe3#
- 1...Sxb4
- 2.Qe4#
- 1...axb4
- 2.Qe4#
- 1...Se3
- 2.Qxe3#
- 2.fxe3#
- 1...Sg3
- 2.Sf3#
- 2.Qe3#
- 1...Sh4
- 2.Qe3#
- 2.Qe4#
- 1...Se5
- 2.Bc5#
- 2.Bxe5#
- 2.Qxc3#
- 2.Qe4#
- 2.Qxe5#
- 1...c2
- 2.Sf3#
- 2.Qd2#
- 1...hxg5!
- threat
- 1.Qf1?
- threat
- 2.Qd3#
- 2.Qc4#
- 1...Rxb3
- 2.Qd3#
- 1...Sxb4
- 2.Qc4#
- 1...axb4
- 2.Qc4#
- 1...Se3
- 2.Qd3#
- 1...Se5
- 2.Bc5#
- 1...Sxd6!
- threat
- 1.Qh1?
- threat
- 2.Qe4#
- 2.Qd5#
- 1...Sxd6
- 2.Qd5#
- 1...Sxb4
- 2.Qe4#
- 1...axb4
- 2.Qe4#
- 1...hxg5
- 2.Qd5#
- 1...Se3
- 2.Qe4#
- 1...Sg3
- 2.Qd5#
- 1...Sfe7
- 2.Qe4#
- 2.Qh4#
- 1...Sce7
- 2.Rc4#
- 2.Qe4#
- 1...c2!
- threat
- 1.Qg2?
- threat
- 2.Qe4#
- 2.Qd5#
- 1...Sxd6
- 2.Qd5#
- 1...Sxb4
- 2.Qe4#
- 1...axb4
- 2.Qe4#
- 1...hxg5
- 2.Qd5#
- 1...Se3
- 2.Qe4#
- 1...Sg3
- 2.Qd5#
- 1...Sfe7
- 2.Qe4#
- 1...Sce7
- 2.Rc4#
- 2.Qe4#
- 1...c2!
- threat
- 1.Se6+?
- Keys
- 1.Bxh5!
- threat
- 2.Qd1#
- 2.Qg4#
- 1...Rxb3
- 2.Qg4#
- 1...Sxd6
- 2.f4#
- 1...Sxb4
- 2.Qd1#
- 1...axb4
- 2.Qd1#
- 1...hxg5
- 2.Qg4#
- 1...c2
- 2.Qa1#
- 1...a1Q
- 2.Qg4#
- 1...a1R
- 2.Qg4#
- 1...Se3
- 2.fxe3#
- 1...Sg3
- 2.Qd1#
- 2.fxg3#
- 2.f3#
- 2.f4#
- 1...Se5
- 2.Bc5#
- threat
- 1.Bxh5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 5
- Sets
- S(f);OGATE::P(C),XS(f)
- S(f);N_GUARD,XB(H)::QAB(B)+P(C)
- S(h);SBLOCK::B(H)
- S(h);OGATE::R1(I)
- P(g);N_GUARD::QAR(B)
- Tries
- Try
- S(G);CHECK
- Refutation
- P(j);XS(G)
- Try
- B(A);
- Threat
- DUALS(2)
- Vars
- S(f);N_GUARD,XB(H)::QAB(B)+P(C)
- S(h);P_SPINS(h),XS(F)::QAR(B)
- P(e);P_SPINP(e),XS(F)::QAR(B)
- P(i);XS(G)::QAR(B)
- P(a);::S(G)
- S(h);SBLOCK::B(H)
- Refutation
- R(b);XP(D)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- R(b);XP(D)::QAR1(B)
- S(f);N_GUARD,XB(H)::QAB1(B)
- S(h);P_SPINS(h),XS(F)::QAR1(B)
- P(e);P_SPINP(e),XS(F)::QAR1(B)
- Refutation
- P(i);XS(G)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- R(b);XP(D)::QAR1(B)
- S(h);P_SPINS(h),XS(F)::QAR1(B)
- P(e);P_SPINP(e),XS(F)::QAR1(B)
- S(f);::QAR1(B)
- S(h);SBLOCK::B(H)
- Refutation
- S(f);XB(H)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- S(f);XB(H)::QAR1(B)
- S(h);P_SPINS(h),XS(F)::QAR1(B)
- P(e);P_SPINP(e),XS(F)::QAR1(B)
- P(i);XS(G)::QAR1(B)
- S(f);::QAR1(B)
- Refutation
- P(c);
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- S(f);XB(H)::QAR1(B)
- S(h);P_SPINS(h),XS(F)::QAR1(B)
- P(e);P_SPINP(e),XS(F)::QAR1(B)
- P(i);XS(G)::QAR1(B)
- S(f);::QAR1(B)
- Refutation
- P(c);
- Try
- Actual
- B(A);XP(g)
- Threat
- DUALS(2)
- Vars
- R(b);XP(D)::QAR(B)
- S(f);N_GUARD,XB(H)::QAB(B)+P(C)
- S(h);P_SPINS(h),XS(F)::QAR(B)
- P(e);P_SPINP(e),XS(F)::QAR(B)
- P(i);XS(G)::QAR(B)
- P(c);OGATEB::QAB(B)
- P(a);::QAR(B)
- S(f);OGATE::P(C),XS(f)
- S(h);SBLOCK::B(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).