MESON Chess Problem Database
Problem Display
PID: 225518 (8/7P/4pK2/1p6/4kN2/3RpnP1/r1N3n1/7Q w - - 0 1)
Hronec, Jaroslav
Comm., Praca, 1958
#2
7 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Sge1
- 2.Rxe3#
- 2.Rd4#
- 1...Sxf4
- 2.Rd4#
- 1...Sgh4
- 2.Rxe3#
- 2.Rd4#
- 1...Sfe1
- 2.Rxe3#
- 1...Sg1
- 2.Rxe3#
- 1...Sd2
- 2.Rxe3#
- 1...Sh2
- 2.Rxe3#
- 1...Sd4
- 2.Rxe3#
- 1...Sfh4
- 2.Rxe3#
- 1...Se5
- 2.Rxe3#
- 1...Sg5
- 2.Rxe3#
- 1...Sge1
- Tries
- 1.Qxg2?
- threat
- 2.Rxe3#
- 2.Rd4#
- 1...Ra3
- 2.Rd4#
- 1...Ra4
- 2.Rxe3#
- 1...e2
- 2.Re3#
- 2.Rd4#
- 2.Qxf3#
- 2.Qxe2#
- 1...e5
- 2.Rxe3#
- 1...Rxc2!
- threat
- 1.h8Q?
- threat
- 2.Q1h7#
- 2.Q8h7#
- 1...Sxf4
- 2.Rd4#
- 1...Sfe1
- 2.Rxe3#
- 1...Sg1
- 2.Rxe3#
- 1...Sd2
- 2.Rxe3#
- 1...Sh2
- 2.Rxe3#
- 1...Sd4
- 2.Rxe3#
- 1...Sfh4
- 2.Rxe3#
- 1...Se5
- 2.Rxe3#
- 1...Sg5
- 2.Rxe3#
- 1...Sgh4
- 2.Rxe3#
- 2.Rd4#
- 1...Ra7!
- threat
- 1.h8S?
- threat
- 2.Qh7#
- 1...Sxf4
- 2.Rd4#
- 1...Sfe1
- 2.Rxe3#
- 1...Sg1
- 2.Rxe3#
- 1...Sd2
- 2.Rxe3#
- 1...Sh2
- 2.Rxe3#
- 1...Sd4
- 2.Rxe3#
- 1...Sfh4
- 2.Rxe3#
- 1...Se5
- 2.Rxe3#
- 1...Sg5
- 2.Rxe3#
- 1...Sgh4
- 2.Rxe3#
- 2.Rd4#
- 1...Ra7!
- threat
- 1.h8B?
- threat
- 2.Qh7#
- 1...Sxf4
- 2.Rd4#
- 1...Sfe1
- 2.Rxe3#
- 1...Sg1
- 2.Rxe3#
- 1...Sd2
- 2.Rxe3#
- 1...Sh2
- 2.Rxe3#
- 1...Sd4
- 2.Rxe3#
- 1...Sfh4
- 2.Rxe3#
- 1...Se5
- 2.Rxe3#
- 1...Sg5
- 2.Rxe3#
- 1...Sgh4
- 2.Rxe3#
- 2.Rd4#
- 1...Ra7!
- threat
- 1.h8R?
- threat
- 2.Qh7#
- 1...Sxf4
- 2.Rd4#
- 1...Sfe1
- 2.Rxe3#
- 1...Sg1
- 2.Rxe3#
- 1...Sd2
- 2.Rxe3#
- 1...Sh2
- 2.Rxe3#
- 1...Sd4
- 2.Rxe3#
- 1...Sfh4
- 2.Rxe3#
- 1...Se5
- 2.Rxe3#
- 1...Sg5
- 2.Rxe3#
- 1...Sgh4
- 2.Rxe3#
- 2.Rd4#
- 1...Ra7!
- threat
- 1.Qxg2?
- Keys
- 1.Qh5!
- threat
- 2.Qg6#
- 1...Sxf4
- 2.Rxe3#
- 1...Sgh4
- 2.Rxe3#
- 1...Sfe1
- 2.Rd4#
- 1...Sg1
- 2.Rd4#
- 1...Sd2
- 2.Rd4#
- 1...Sh2
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sfh4
- 2.Rd4#
- 1...Se5
- 2.Rd4#
- 1...Sg5
- 2.Rd4#
- threat
- 1.Qh5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 9
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(b);P_SPINS(d),XS(E)::R1(C)
- S(d);P_SPINS(b)::R1(C),XP(c)
- Tries
- Try
- Q(A);P_PINS(d),XS(b)
- Threat
- DUALS(2)
- Vars
- R(a);::R1(C)
- R(a);::R1(C),XP(c)
- P(g);::R1(C),XP(c)
- Refutation
- R(a);XS(B)
- Try
- P(G);
- Threat
- DUALS(2)
- Vars
- S(b);P_SPINS(d),XS(E)::R1(C)
- S(d);P_SPINS(b)::R1(C),XP(c)
- Refutation
- R(a);
- Try
- P(G);
- Threat
- QAB(A)
- Vars
- S(b);P_SPINS(d),XS(E)::R1(C)
- S(d);P_SPINS(b)::R1(C),XP(c)
- Refutation
- R(a);
- Try
- P(G);
- Threat
- QAB(A)
- Vars
- S(b);P_SPINS(d),XS(E)::R1(C)
- S(d);P_SPINS(b)::R1(C),XP(c)
- Refutation
- R(a);
- Try
- P(G);
- Threat
- QAB(A)
- Vars
- S(b);P_SPINS(d),XS(E)::R1(C)
- S(d);P_SPINS(b)::R1(C),XP(c)
- Refutation
- R(a);
- Try
- Actual
- Q(A);
- Threat
- QAB(A)
- Vars
- S(b);N_GUARD,XS(E)::R1(C),XP(c)
- S(b);N_GUARD::R1(C),XP(c)
- S(d);N_GUARD::R1(C)
- S(d);N_GUARD::R1(C),XS(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).