MESON Chess Problem Database
Problem Display
PID: 136855 (8/Q1r1p1p1/4K1p1/2P1NnN1/1Ppk1r2/8/2PPPp1R/1n2BR2 w - - 0 1)
Hronec, Jaroslav
4th HM., Lacny-50 JT, 1976
#2
12 + 10
| 6490 | yacpdb | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Rf3
- 2.Sexf3#
- 1...Re4
- 2.Sf3#
- 1...Rg4
- 2.Sef3#
- 1...Rh4
- 2.Sef3#
- 1...Rxc5
- 2.Sc6#
- 2.Qxc5#
- 1...Rc6+
- 2.Sxc6#
- 1...Rxa7
- 2.Sc6#
- 1...Rb7
- 2.Sc6#
- 1...Rd7
- 2.Sc6#
- 1...Rc8
- 2.c6#
- 1...Sa3
- 2.c3#
- 1...Sg3
- 2.e3#
- 1...Sh4
- 2.e3#
- 1...Sd6
- 2.e3#
- 1...Sh6
- 2.e3#
- 1...fxe1Q
- 2.Rxf4#
- 1...fxe1S
- 2.Rxf4#
- 1...fxe1B
- 2.Rxf4#
- 1...fxe1R
- 2.Rxf4#
- 1...Rf3
- Tries
- 1.Bxf2+?
- 1...Se3
- 2.Bxe3#
- 1...Rxf2!
- 1...Se3
- 1.Rh4?
- threat
- 2.Sef3#
- 2.Rxf4#
- 1...Rc6+
- 2.Sxc6#
- 1...Rxh4
- 2.Sef3#
- 1...Sxh4
- 2.e3#
- 1...fxe1S
- 2.Rfxf4#
- 2.Rhxf4#
- 1...Sc3
- 2.Sef3#
- 1...Re4
- 2.Sf3#
- 2.Rxe4#
- 1...Rg4
- 2.Sef3#
- 2.Rxg4#
- 1...Sg3
- 2.Sef3#
- 2.Bxf2#
- 2.e3#
- 1...Sd6
- 2.Sef3#
- 2.Bxf2#
- 2.e3#
- 1...c3
- 2.Rxf4#
- 1...Sxd2!
- threat
- 1.Qb6?
- threat
- 2.c6#
- 1...Rc6+
- 2.Sxc6#
- 1...Rxc5
- 2.Sc6#
- 2.Qxc5#
- 1...Rb7
- 2.Sc6#
- 1...Sxd2!
- threat
- 1.Qa1+?
- 1...Sc3
- 2.Qxc3#
- 1...c3!
- 1...Sc3
- 1.Bxf2+?
- Keys
- 1.Rh3!
- 1...Rc6+
- 2.Sxc6#
- 1...Rxc5
- 2.Sc6#
- 2.Qxc5#
- 1...Rxa7
- 2.Sc6#
- 1...Sxd2
- 2.c3#
- 1...fxe1Q
- 2.Rxf4#
- 1...fxe1S
- 2.Rxf4#
- 1...fxe1B
- 2.Rxf4#
- 1...fxe1R
- 2.Rxf4#
- 1...Sc3
- 2.dxc3#
- 1...Rf3
- 2.Sexf3#
- 1...Re4
- 2.Sf3#
- 1...Rg4
- 2.Sef3#
- 1...Rh4
- 2.Sef3#
- 1...Rb7
- 2.Sc6#
- 1...Rd7
- 2.Sc6#
- 1...Rc8
- 2.c6#
- 1...Sa3
- 2.c3#
- 1...Se3
- 2.dxe3#
- 1...Sg3
- 2.e3#
- 1...Sh4
- 2.e3#
- 1...Sd6
- 2.e3#
- 1...Sh6
- 2.e3#
- 1...c3
- 2.Rd3#
- 1...Rc6+
- 1.Rh3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(e);N_GUARD::S(I),XR(e)
- R(e);N_GUARD,P_PINS(I),SBLOCK::S(J)
- R(e);N_GUARD::S(I)
- R(h);CHECK,N_GUARD::S(I),XR(h)
- R(h);N_GUARD,XQ(L)::S(I)
- R(h);N_GUARD::S(I)
- R(h);N_GUARD::QAB(L)+P(H)
- S(a);N_GUARD::P(C)
- S(f);N_GUARD::P(E)
- P(b);OGATE,XB(A)::R(B),XR(e)
- Tries
- Try
- B(A);CHECK,XP(b)
- Vars
- S(f);N_GUARD,P_SPINS(f)::B(A),XS(f)
- Refutation
- R(e);XB(A)
- Try
- R(F);P_PINR(e)
- Threat
- DUALS(2)
- Vars
- R(h);CHECK,N_GUARD::S(I),XR(h)
- R(e);N_SPINR(e),XR(F)::S(I)
- S(f);N_GUARD,N_SPINR(e),XR(F)::P(E)
- S(a);::S(I)
- P(c);::R(F),XR(e)
- Refutation
- S(a);XP(D)
- Try
- Q(L);
- Threat
- QAB(L)+P(H)
- Vars
- R(h);CHECK,N_GUARD::S(I),XR(h)
- R(h);N_GUARD::S(I)
- Refutation
- S(a);XP(D)
- Try
- Q(L);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAB1(L),XS(a)
- Refutation
- P(c);P_SPINP(c)
- Try
- Actual
- R(F);
- Vars
- R(h);CHECK,N_GUARD::S(I),XR(h)
- R(h);N_GUARD,XQ(L)::S(I)
- S(a);N_GUARD,XP(D)::P(C)
- P(b);OGATE,XB(A)::R(B),XR(e)
- S(a);OGATE::P(D),XS(a)
- R(e);N_GUARD::S(I),XR(e)
- R(e);N_GUARD,P_PINS(I),SBLOCK::S(J)
- R(e);N_GUARD::S(I)
- R(h);N_GUARD::S(I)
- R(h);N_GUARD::QAB(L)+P(H)
- S(a);N_GUARD::P(C)
- S(f);OGATE::P(D),XS(f)
- S(f);N_GUARD::P(E)
- P(c);N_GUARD::R1(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).