MESON Chess Problem Database
Problem Display
PID: 99203 (3Q4/N1P1b3/1B3r2/KnRP4/b1BkpP2/R3p1n1/4P3/Nr6 w - - 0 1)
Kardos, Andras
Magyar Sakkvilag, 1937
#2
12 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxf4
- 2.Sc6#
- 1...Rf5
- 2.Sc6#
- 1...Rc6
- 2.Sxc6#
- 1...Rd6
- 2.Rc6#
- 1...Rf7
- 2.Sc6#
- 1...Rf8
- 2.Sc6#
- 1...Bc2
- 2.Sxc2#
- 1...Bb3
- 2.Sxb5#
- 1...Bd6
- 2.Sc6#
- 1...Bxd8
- 2.Rc6#
- 1...Bf8
- 2.Qxf6#
- 1...Rxf4
- Tries
- 1.Sxb5+?
- 1...Bxb5
- 2.Sc2#
- 1...Rxb5+!
- 1...Bxb5
- 1.Bb3?
- threat
- 2.Sc2#
- 2.Rxa4#
- 2.Rc4#
- 1...Rxa1
- 2.Rc4#
- 1...Rxb3
- 2.Sc2#
- 1...Rxf4
- 2.Sc6#
- 1...Rxb6
- 2.Rc4#
- 1...Bxb3
- 2.Sxb5#
- 1...Bxc5
- 2.Qxf6#
- 1...Bxd8
- 2.Sc2#
- 2.Rxa4#
- 2.Rc6#
- 1...Sxa3
- 2.Rc4#
- 1...Rc1
- 2.Rc4#
- 1...Rb2
- 2.Rxa4#
- 2.Rc4#
- 1...Rd6
- 2.Sc2#
- 2.Rxa4#
- 2.Rc6#
- 1...Bd6
- 2.Sc2#
- 2.Sc6#
- 2.Rxa4#
- 1...Sc3
- 2.Sc2#
- 2.Rc4#
- 1...Sd6
- 2.Sc2#
- 2.Rc1#
- 2.Rc2#
- 2.Rc6#
- 1...Sxe2!
- threat
- 1.Qxe7?
- threat
- 2.Rc6#
- 2.Qxf6#
- 2.Qe5#
- 1...Rxf4
- 2.Sc6#
- 2.Rc6#
- 1...Sxa3
- 2.Qxf6#
- 2.Qe5#
- 1...Sxa7
- 2.Qxf6#
- 2.Qe5#
- 1...Sxc7
- 2.Qxf6#
- 2.Qe5#
- 1...Rb3
- 2.Qxf6#
- 2.Qe5#
- 1...Bb3
- 2.Sxb5#
- 2.Qxf6#
- 2.Qe5#
- 1...Rf5
- 2.Sc6#
- 2.Rc6#
- 1...Rc6
- 2.Sxc6#
- 2.Rxc6#
- 2.Qe5#
- 1...Rd6
- 2.Rc6#
- 2.Qe5#
- 1...Re6
- 2.Rc6#
- 1...Rg6
- 2.Rc6#
- 2.Qe5#
- 1...Rh6
- 2.Rc6#
- 2.Qe5#
- 1...Rf7
- 2.Sc6#
- 2.Rc6#
- 2.Qe5#
- 1...Rf8
- 2.Sc6#
- 2.Rc6#
- 2.Qe5#
- 1...Sh5
- 2.Rc6#
- 2.Qe5#
- 1...Sc3
- 2.Qxf6#
- 2.Qe5#
- 1...Sd6
- 2.Qxf6#
- 2.Qe5#
- 1...Rxb6!
- threat
- 1.Qd6?
- threat
- 2.Sc6#
- 2.Rc6#
- 2.Qe5#
- 1...Rxf4
- 2.Sc6#
- 2.Rc6#
- 1...Rxd6
- 2.Rc6#
- 1...Bxd6
- 2.Sc6#
- 1...Sxa3
- 2.Qe5#
- 1...Sxa7
- 2.Qe5#
- 1...Sxc7
- 2.Qe5#
- 1...Rb3
- 2.Qe5#
- 1...Bb3
- 2.Sxb5#
- 2.Qe5#
- 1...Rf5
- 2.Sc6#
- 2.Rc6#
- 1...Re6
- 2.Sc6#
- 2.Rc6#
- 1...Sc3
- 2.Qe5#
- 1...Sxd6!
- threat
- 1.Sxb5+?
- Keys
- 1.Ba2!
- threat
- 2.Rc4#
- 1...Rxf4
- 2.Sc6#
- 1...Bxc5
- 2.Qxf6#
- 1...Bxd8
- 2.Rc6#
- 1...Rb3
- 2.Sc2#
- 1...Rd6
- 2.Rc6#
- 1...Bb3
- 2.Sxb5#
- 1...Bd6
- 2.Sc6#
- 1...Sd6
- 2.Rb5#
- threat
- 1.Ba2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 6
- Sets
- R(h);N_GUARD,XP(E)::S(J)
- R(h);N_GUARD::S(J)
- R(h);N_GUARD::S(J),XR(h)
- R(h);S_CUTB(i)::B(I)+R(G)
- B(d);N_GUARD::S(A),XB(d)
- B(d);N_GUARD,S_CUTR(a)::S(J),XS(g)
- B(i);S_CUTR(h)::S(J)
- B(i);N_GUARD,XQ(L)::B(I)+R(G)
- B(i);OGATE::QAB(L),XR(h)
- Tries
- Try
- S(J);CHECK,XS(g)
- Vars
- B(d);XS(J)::S(A)
- Refutation
- R(a);CHECK,XS(J)
- Try
- B(D);
- Threat
- DUALS(3)
- Vars
- R(a);XS(A)::B(I)+R(G),DCHECK
- R(a);XB(D)::S(A)
- R(h);N_GUARD,XP(E)::S(J)
- R(h);XB(I)::R1(G)
- B(d);N_GUARD,XB(D)::S(J),XS(g)
- B(i);OGATE,P_SPINB(i),XR(G)::QAB(L),XR(h)
- S(g);XR(C)::B(I)+R(G),DCHECK
- R(a);::B(I)+R(G),DCHECK
- Refutation
- S(c);XP(B)
- Try
- Q(L);XB(i)
- Threat
- DUALS(3)
- Vars
- R(h);::B(I)+R(G)
- Refutation
- R(h);XB(I)
- Try
- Q(L);
- Threat
- DUALS(3)
- Vars
- R(h);XQ(L)::B(I)+R(G)
- B(i);XQ(L)::S(J)
- S(g);XR(C)::QAB1(L)
- S(g);XS(J)::QAB1(L)
- S(g);XP(K)::QAB1(L)
- R(a);::QAB1(L)
- S(g);::QAB1(L)
- Refutation
- S(g);XQ(L)
- Try
- Actual
- B(D);
- Threat
- B(I)+R(G),DCHECK
- Vars
- R(h);N_GUARD,XP(E)::S(J)
- B(i);OGATE,P_SPINB(i),XR(G)::QAB(L),XR(h)
- B(i);N_GUARD,XQ(L)::B(I)+R(G)
- R(a);S_CUTB(d)::S(A)
- R(h);S_CUTB(i)::B(I)+R(G)
- B(d);N_GUARD,S_CUTR(a)::S(J),XS(g)
- B(i);S_CUTR(h)::S(J)
- S(g);S_CUTB(i),S_CUTR(h)::B(I)+R(G)
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).