MESON Chess Problem Database
Problem Display
PID: 106473 (1N3Q1b/3P3q/b2n2p1/1r1BkP2/R5P1/3RP2p/2rp4/6nK w - - 0 1)
Hronec, Jaroslav
Salai, Ladislav
Praca, 1954
#2
10 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qh5
- 2.Qe7#
- 1...Qh6
- 2.Qe7#
- 1...Qxd7
- 2.Sxd7#
- 1...Qe7
- 2.Qxe7#
- 1...Ra2
- 2.Sc6#
- 1...Rcb2
- 2.Sc6#
- 1...Rc6
- 2.Sxc6#
- 1...Bg7
- 2.Qe7#
- 1...Sc4
- 2.Sc6#
- 1...Se4
- 2.Rxe4#
- 1...Sxf5
- 2.Re4#
- 1...Sb7
- 2.Re4#
- 1...Sf7
- 2.Qe7#
- 1...Sc8
- 2.Re4#
- 1...Se8
- 2.Re4#
- 1...Qh5
- Tries
- 1.Bg2?
- threat
- 2.Qxd6#
- 1...Qxd7
- 2.Sxd7#
- 1...Sxf5
- 2.Re4#
- 1...Sf7
- 2.Qe7#
- 1...Qe7
- 2.Qxe7#
- 1...Rc6
- 2.Sxc6#
- 1...Rd5
- 2.Rxd5#
- 1...Rb6
- 2.Rd5#
- 1...Sc4
- 2.Sc6#
- 1...Se4
- 2.Rxe4#
- 1...Sb7
- 2.Re4#
- 1...Sc8
- 2.Re4#
- 1...Se8
- 2.Re4#
- 1...hxg2+!
- threat
- 1.Bc6?
- threat
- 2.Qxd6#
- 1...Qxd7
- 2.Sxd7#
- 1...Rxc6
- 2.Sxc6#
- 1...Sxf5
- 2.Re4#
- 1...Sf7
- 2.Qe7#
- 1...Qe7
- 2.Qxe7#
- 1...Rd5
- 2.Rxd5#
- 1...Se4
- 2.Rxe4#
- 1...Sb7
- 2.Re4#
- 1...Sc8
- 2.Re4#
- 1...Se8
- 2.Re4#
- 1...Sc4!
- threat
- 1.Qxh8+?
- 1...Qg7
- 2.Qxg7#
- 1...Qxh8!
- 1...Qg7
- 1.Bg2?
- Keys
- 1.Bf3!
- threat
- 2.Qxd6#
- 1...Qxd7
- 2.Sxd7#
- 1...Sxf5
- 2.Re4#
- 1...Sf7
- 2.Qe7#
- 1...Qe7
- 2.Qxe7#
- 1...Rc6
- 2.Sxc6#
- 1...Rd5
- 2.Rxd5#
- 1...Rb6
- 2.Rd5#
- 1...Sc4
- 2.Sc6#
- 1...Se4
- 2.Rxe4#
- 1...Sb7
- 2.Re4#
- 1...Sc8
- 2.Re4#
- 1...Se8
- 2.Re4#
- threat
- 1.Bf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- Q(j);N_GUARD::QAR2(J)
- Q(j);XP(H)::S(I),XQ(j)
- Q(j);N_GUARD::QAR2(J),XQ(j)
- R(b);N_GUARD::S(I)
- R(b);N_GUARD::S(I),XR(b)
- B(k);S_CUTQ(j)::QAR2(J)
- S(h);S_CUTR(b)::S(I)
- S(h);N_GUARD::R1(D),XS(h)
- S(h);N_GUARD,XP(G)::R1(D)
- S(h);N_GUARD::R1(D)
- S(h);S_CUTQ(j)::QAR2(J)
- Tries
- Try
- B(F);
- Threat
- QAB1(J),XS(h)
- Vars
- Q(j);XP(H)::S(I),XQ(j)
- S(h);N_GUARD,XP(G)::R1(D)
- S(h);S_CUTQ(j)::QAR2(J)
- Q(j);N_GUARD::QAR2(J),XQ(j)
- R(b);N_GUARD::S(I),XR(b)
- R(e);N_GUARD::R1(B),XR(e)
- R(e);N_GUARD::R1(B)
- S(h);S_CUTR(b)::S(I)
- S(h);N_GUARD::R1(D),XS(h)
- S(h);N_GUARD::R1(D)
- Refutation
- P(d);CHECK,XB(F)
- Try
- B(F);
- Threat
- QAB1(J),XS(h)
- Vars
- Q(j);XP(H)::S(I),XQ(j)
- R(b);XB(F)::S(I),XR(b)
- S(h);N_GUARD,XP(G)::R1(D)
- S(h);S_CUTQ(j)::QAR2(J)
- Q(j);N_GUARD::QAR2(J),XQ(j)
- R(e);N_GUARD::R1(B),XR(e)
- S(h);N_GUARD::R1(D),XS(h)
- S(h);N_GUARD::R1(D)
- Refutation
- S(h);
- Try
- Q(J);CHECK,XB(k)
- Vars
- Q(j);N_GUARD,P_SPINQ(j)::QAB(J),XQ(j)
- Refutation
- Q(j);XQ(J)
- Try
- Actual
- B(F);
- Threat
- QAB1(J),XS(h)
- Vars
- Q(j);XP(H)::S(I),XQ(j)
- S(h);N_GUARD,XP(G)::R1(D)
- S(h);S_CUTQ(j)::QAR2(J)
- Q(j);N_GUARD::QAR2(J),XQ(j)
- R(b);N_GUARD::S(I),XR(b)
- R(e);N_GUARD::R1(B),XR(e)
- R(e);N_GUARD::R1(B)
- S(h);S_CUTR(b)::S(I)
- S(h);N_GUARD::R1(D),XS(h)
- S(h);N_GUARD::R1(D)
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).