MESON Chess Problem Database
Problem Display
PID: 72875 (1n1R4/4N2p/rR2N3/2p1k3/3p1n1B/1b4K1/2B5/r2Q4 w - - 0 1)
Kiss, Janos
1/2 Prize, Banyai MT, 1951
#2
8 + 9
SOLUTION
- SOUND
- Sets
- 1...Se2+
- 2.Qxe2#
- 1...Sg2
- 2.Qh5#
- 1...Sd3
- 2.Qe2#
- 1...Sh3
- 2.Qe2#
- 1...Sd5
- 2.Qh5#
- 1...Sh5+
- 2.Qxh5#
- 1...Sxe6
- 2.Qe2#
- 1...Sg6
- 2.Qe2#
- 2.Qh5#
- 1...c4
- 2.Qxd4#
- 1...Se2+
- Tries
- 1.Sg6+?
- 1...Sxg6
- 2.Qe2#
- 2.Qh5#
- 1...hxg6!
- 1...Sxg6
- 1.Rd5+?
- 1...Sxd5
- 2.Qh5#
- 1...Bxd5!
- 1...Sxd5
- 1.Qf3?
- threat
- 2.Qe4#
- 2.Qxf4#
- 1...Se2+
- 2.Qxe2#
- 1...Sh5+
- 2.Qxh5#
- 1...Rxb6
- 2.Qe4#
- 1...Bxc2
- 2.Qxf4#
- 1...Sxe6
- 2.Bf6#
- 2.Qe2#
- 2.Qe4#
- 2.Qf5#
- 2.Qf6#
- 1...Sc6
- 2.Qe4#
- 1...Re1
- 2.Qxf4#
- 1...Rf1
- 2.Qe4#
- 1...Bd5
- 2.Qxf4#
- 1...Sg2
- 2.Bf6#
- 2.Qe4#
- 2.Qh5#
- 2.Qf5#
- 2.Qf6#
- 1...Sd3
- 2.Bf6#
- 2.Qe2#
- 2.Qf5#
- 1...Sh3
- 2.Bf6#
- 2.Qe2#
- 2.Qe4#
- 2.Qf5#
- 2.Qf6#
- 1...Sd5
- 2.Qe4#
- 2.Qh5#
- 2.Qf5#
- 1...Sg6
- 2.Bf6#
- 2.Qe2#
- 2.Qe4#
- 2.Qh5#
- 2.Qf5#
- 2.Qf6#
- 1...d3
- 2.Qe3#
- 2.Qxf4#
- 1...Rg1+!
- threat
- 1.Qg4?
- threat
- 2.Qf5#
- 2.Qxf4#
- 2.Qg5#
- 2.Qg7#
- 1...Se2+
- 2.Qxe2#
- 1...Sh5+
- 2.Qxh5#
- 1...Rxb6
- 2.Qf5#
- 1...Bxc2
- 2.Qxf4#
- 1...Bxe6
- 2.Qxf4#
- 2.Qg7#
- 1...Sxe6
- 2.Qe2#
- 2.Qf5#
- 2.Qe4#
- 1...d3
- 2.Qf5#
- 2.Qxf4#
- 1...Rf1
- 2.Qf5#
- 2.Qg5#
- 2.Qg7#
- 1...Sg2
- 2.Qf5#
- 2.Qh5#
- 2.Qe4#
- 2.Qg5#
- 2.Qg7#
- 1...Sd3
- 2.Qe2#
- 2.Qf5#
- 1...Sh3
- 2.Qe2#
- 2.Qf5#
- 2.Qe4#
- 2.Qg7#
- 1...Sd5
- 2.Qf5#
- 2.Qh5#
- 2.Qe4#
- 2.Qg5#
- 1...Sg6
- 2.Qe2#
- 2.Qf5#
- 2.Qh5#
- 2.Qe4#
- 2.Qg5#
- 1...Sc6
- 2.Sxc6#
- 2.Qf5#
- 1...Sd7
- 2.Qf5#
- 2.Qxf4#
- 2.Qg5#
- 1...h6
- 2.Qf5#
- 2.Qxf4#
- 2.Qg7#
- 1...Rg1+!
- threat
- 1.Qe1+?
- 1...Se2+
- 2.Qxe2#
- 1...Rxe1!
- 1...Se2+
- 1.Sg6+?
- Keys
- 1.Sxc5!
- threat
- 2.Bf6#
- 2.Qxd4#
- 1...Se2+
- 2.Qxe2#
- 1...Sh5+
- 2.Qxh5#
- 1...Rxd1
- 2.Bf6#
- 1...Rxb6
- 2.Qxd4#
- 1...R1a4
- 2.Bf6#
- 1...R6a4
- 2.Bf6#
- 1...Bd5
- 2.Bf6#
- 1...Be6
- 2.Qxd4#
- 1...Sd3
- 2.Bf6#
- 2.Qe2#
- 2.Qh5#
- 1...Sd5
- 2.Qh5#
- 1...Se6
- 2.Qe2#
- 1...Sc6
- 2.Sxc6#
- 1...Sd7
- 2.Sxd7#
- 1...d3
- 2.Bf6#
- threat
- 1.Sxc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 4
- Sets
- S(d);CHECK,N_GUARD::QAR(A),XS(d)
- S(d);N_GUARD::QAR(A)
- S(d);N_GUARD,XS(F)::QAR(A)
- P(e);N_GUARD::QAB1(A),XP(c)
- Tries
- Try
- S(G);CHECK
- Refutation
- P(h);XS(G)
- Try
- R(H);CHECK
- Vars
- S(d);XR(H)::QAR(A)
- Refutation
- B(b);XR(H)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(d);CHECK,N_GUARD::QAR(A),XS(d)
- R(g);XR(E)::QAR1(A)
- B(b);XB(B)::QAB1(A),XS(d)
- S(i);::QAR1(A)
- R(a);::QAB1(A),XS(d)
- R(a);::QAR1(A)
- B(b);::QAB1(A),XS(d)
- Refutation
- R(a);CHECK
- Try
- Q(A);
- Threat
- DUALS(4)
- Vars
- S(d);CHECK,N_GUARD::QAR(A),XS(d)
- R(g);XR(E)::QAR1(A)
- B(b);XB(B)::QAB1(A),XS(d)
- Refutation
- R(a);CHECK
- Try
- Q(A);CHECK
- Vars
- S(d);CHECK,N_GUARD,P_SPINS(d)::QAR(A),XS(d)
- Refutation
- R(a);XQ(A)
- Try
- Actual
- S(F);XP(e)
- Threat
- DUALS(2)
- Vars
- S(d);CHECK,N_GUARD::QAR(A),XS(d)
- R(a);XQ(A)::B(D)
- R(g);XR(E)::QAB1(A),XP(c)
- R(a);::B(D)
- R(g);::B(D)
- B(b);::B(D)
- B(b);::QAB1(A),XP(c)
- S(d);N_GUARD::QAR(A)
- S(i);N_GUARD::S(G),XS(i)
- S(i);N_GUARD::S(F),XS(i)
- P(c);::B(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).