MESON Chess Problem Database
Problem Display
PID: 202587 (2bNQB2/1p1p1Pp1/1p3p2/1n1k2pN/1PrpRRP1/p5n1/B7/4K3 w - - 0 1)
Kovacs, Florian Janos
Uj Nemezdek, 1923
#2
11 + 13
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Sf1
- 2.Rf5#
- 1...Sh1
- 2.Rf5#
- 1...Se2
- 2.Rf5#
- 1...Sxe4
- 2.Rf5#
- 2.Qxe4#
- 1...Sf5
- 2.Rxf5#
- 1...Sxh5
- 2.Rf5#
- 1...Sc3
- 2.Rxd4#
- 1...Sd6
- 2.Rxd4#
- 1...Sa7
- 2.Rxd4#
- 1...Sc7
- 2.Rxd4#
- 1...d3
- 2.Bxc4#
- 1...gxf4
- 2.Sxf4#
- 1...f5
- 2.Re5#
- 2.Qe5#
- 1...d6
- 2.Qxb5#
- 1...g6
- 2.Sxf6#
- 1...Sf1
- Tries
- 1.Kd1?
- 1...Sxe4
- 2.Rf5#
- 2.Qxe4#
- 1...Sxh5
- 2.Rf5#
- 1...gxf4
- 2.Sxf4#
- 1...Sf1
- 2.Rf5#
- 1...Sh1
- 2.Rf5#
- 1...Se2
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Sd6
- 2.Rxd4#
- 1...Sa7
- 2.Rxd4#
- 1...Sc7
- 2.Rxd4#
- 1...d3
- 2.Bxc4#
- 1...f5
- 2.Re5#
- 2.Qe5#
- 1...d6
- 2.Qxb5#
- 1...g6
- 2.Sxf6#
- 1...Sc3+!
- 1...Sxe4
- 1.Kd2?
- 1...Sxe4+
- 2.Qxe4#
- 1...Sxh5
- 2.Rf5#
- 1...gxf4
- 2.Sxf4#
- 1...Sh1
- 2.Rf5#
- 1...Se2
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Sc3
- 2.Rxd4#
- 1...Sd6
- 2.Rxd4#
- 1...Sa7
- 2.Rxd4#
- 1...Sc7
- 2.Rxd4#
- 1...d3
- 2.Bxc4#
- 1...f5
- 2.Re5#
- 2.Qe5#
- 1...d6
- 2.Qxb5#
- 1...g6
- 2.Sxf6#
- 1...Sf1+!
- 1...Sxe4+
- 1.Kf2?
- 1...Sxe4+
- 2.Qxe4#
- 1...Sxh5
- 2.Rf5#
- 1...gxf4
- 2.Sxf4#
- 1...Sf1
- 2.Rf5#
- 1...Se2
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Sc3
- 2.Rxd4#
- 1...Sd6
- 2.Rxd4#
- 1...Sa7
- 2.Rxd4#
- 1...Sc7
- 2.Rxd4#
- 1...d3
- 2.Bxc4#
- 1...f5
- 2.Re5#
- 2.Qe5#
- 1...d6
- 2.Qxb5#
- 1...g6
- 2.Sxf6#
- 1...Sh1+!
- 1...Sxe4+
- 1.Sxg7?
- 1...Sxe4
- 2.Rf5#
- 2.Qxe4#
- 1...Sf1
- 2.Rf5#
- 1...Sh1
- 2.Rf5#
- 1...Se2
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Sh5
- 2.Rf5#
- 1...Sc3
- 2.Rxd4#
- 1...Sd6
- 2.Rxd4#
- 1...Sa7
- 2.Rxd4#
- 1...Sc7
- 2.Rxd4#
- 1...d3
- 2.Bxc4#
- 1...f5
- 2.Re5#
- 2.Qe5#
- 1...d6
- 2.Qxb5#
- 1...gxf4!
- 1...Sxe4
- 1.Bb3?
- 1...Sxe4
- 2.Rf5#
- 2.Qxe4#
- 1...Sxh5
- 2.Rf5#
- 1...gxf4
- 2.Sxf4#
- 1...Sf1
- 2.Rf5#
- 1...Sh1
- 2.Rf5#
- 1...Se2
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Sc3
- 2.Rxd4#
- 1...Sd6
- 2.Rxd4#
- 1...Sa7
- 2.Rxd4#
- 1...Sc7
- 2.Rxd4#
- 1...d3
- 2.Bxc4#
- 1...f5
- 2.Re5#
- 2.Qe5#
- 1...d6
- 2.Qxb5#
- 1...g6
- 2.Sxf6#
- 1...a2!
- 1...Sxe4
- 1.Rxf6?
- threat
- 2.Re5#
- 2.Qe5#
- 1...Sxe4
- 2.Rf5#
- 1...gxf6
- 2.Sxf6#
- 1...d3
- 2.Bxc4#
- 2.Qe5#
- 1...d6!
- threat
- 1.Qxd7+?
- 1...Sd6
- 2.Qxd6#
- 1...Bxd7!
- 1...Sd6
- 1.Qe7?
- 1...Sxe4
- 2.Rf5#
- 2.Qxe4#
- 1...Sxh5
- 2.Rf5#
- 1...gxf4
- 2.Sxf4#
- 1...Sc3
- 2.Rxd4#
- 2.Qd6#
- 1...Sf1
- 2.Rf5#
- 1...Sh1
- 2.Rf5#
- 1...Se2
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Sd6
- 2.Rxd4#
- 2.Qxd6#
- 1...Sa7
- 2.Rxd4#
- 2.Qd6#
- 1...Sc7
- 2.Rxd4#
- 2.Qd6#
- 1...d3
- 2.Bxc4#
- 1...f5
- 2.Re5#
- 2.Qe5#
- 1...g6
- 2.Sxf6#
- 1...d6!
- 1...Sxe4
- 1.Kd1?
- Keys
- 1.Re6!
- 1...Sxh5
- 2.Rf5#
- 1...gxf4
- 2.Sxf4#
- 1...dxe6
- 2.Qxb5#
- 1...Sc3
- 2.Rd6#
- 1...Sf1
- 2.Rf5#
- 1...Sh1
- 2.Rf5#
- 1...Se2
- 2.Rf5#
- 1...Se4
- 2.Rf5#
- 1...Sf5
- 2.Rxf5#
- 1...Sd6
- 2.Rxd6#
- 1...Sa7
- 2.Rd6#
- 1...Sc7
- 2.Rd6#
- 1...d3
- 2.Bxc4#
- 1...f5
- 2.Re5#
- 1...d6
- 2.Qxb5#
- 1...g6
- 2.Sxf6#
- 1...Sxh5
- 1.Re6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 4
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- S(b);N_GUARD::R(E)
- S(b);N_GUARD::R(E),XS(b)
- S(b);N_GUARD,XS(G)::R(E)
- S(e);N_GUARD::R1(D),XP(d)
- P(d);::B(B),XR(c)
- P(g);XR(E)::S(G),XP(g)
- P(k);OGATE::QAR2(J),XS(e)
- P(l);N_GUARD::S(G),XP(i)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- S(b);N_GUARD,XS(G)::R(E)
- P(g);XR(E)::S(G),XP(g)
- S(b);N_GUARD::R(E)
- S(b);N_GUARD::R(E),XS(b)
- S(e);N_GUARD::R1(D),XP(d)
- P(d);::B(B),XR(c)
- P(k);OGATE::QAR2(J),XS(e)
- P(l);N_GUARD::S(G),XP(i)
- Refutation
- S(e);CHECK
- Try
- K(A);S_FLIGHT
- Vars
- S(b);CHECK,OGATE,XR(D)::QAB1(J),XS(b)
- S(b);N_GUARD,XS(G)::R(E)
- P(g);XR(E)::S(G),XP(g)
- S(b);N_GUARD::R(E)
- S(b);N_GUARD::R(E),XS(b)
- S(e);N_GUARD::R1(D),XP(d)
- P(d);::B(B),XR(c)
- P(k);OGATE::QAR2(J),XS(e)
- P(l);N_GUARD::S(G),XP(i)
- Refutation
- S(b);CHECK
- Try
- K(A);S_FLIGHT
- Vars
- S(b);CHECK,OGATE,XR(D)::QAB1(J),XS(b)
- S(b);N_GUARD,XS(G)::R(E)
- P(g);XR(E)::S(G),XP(g)
- S(b);N_GUARD::R(E)
- S(b);N_GUARD::R(E),XS(b)
- S(e);N_GUARD::R1(D),XP(d)
- P(d);::B(B),XR(c)
- P(k);OGATE::QAR2(J),XS(e)
- P(l);N_GUARD::S(G),XP(i)
- Refutation
- S(b);CHECK
- Try
- S(G);XP(l)
- Vars
- S(b);N_GUARD::R(E)
- S(b);N_GUARD::R(E),XS(b)
- S(e);N_GUARD::R1(D),XP(d)
- P(d);::B(B),XR(c)
- P(k);OGATE::QAR2(J),XS(e)
- Refutation
- P(g);XR(E)
- Try
- B(B);
- Vars
- S(b);N_GUARD,XS(G)::R(E)
- P(g);XR(E)::S(G),XP(g)
- S(b);N_GUARD::R(E)
- S(b);N_GUARD::R(E),XS(b)
- S(e);N_GUARD::R1(D),XP(d)
- P(d);::B(B),XR(c)
- P(k);OGATE::QAR2(J),XS(e)
- P(l);N_GUARD::S(G),XP(i)
- Refutation
- P(a);
- Try
- R(E);XP(i)
- Threat
- DUALS(2)
- Vars
- S(b);N_GUARD,XR(D)::R(E)
- P(l);XR(E)::S(G),XP(l)
- Refutation
- P(k);
- Try
- Q(J);CHECK,XP(k)
- Vars
- S(e);N_GUARD,P_SPINS(e)::QAR1(J),XS(e)
- Refutation
- B(m);XQ(J)
- Try
- Q(J);
- Vars
- S(b);N_GUARD,XS(G)::R(E)
- P(g);XR(E)::S(G),XP(g)
- S(b);N_GUARD::R(E)
- S(b);N_GUARD::R(E),XS(b)
- P(d);::B(B),XR(c)
- P(l);N_GUARD::S(G),XP(i)
- Refutation
- P(k);
- Try
- Actual
- R(D);
- Vars
- S(b);N_GUARD,XS(G)::R(E)
- P(g);XR(E)::S(G),XP(g)
- P(k);OGATE,XR(D)::QAR2(J),XS(e)
- S(e);N_GUARD::R1(D)
- S(b);N_GUARD::R(E)
- S(b);N_GUARD::R(E),XS(b)
- S(e);N_GUARD::R1(D),XS(e)
- P(d);::B(B),XR(c)
- P(i);N_GUARD::R1(D)
- P(k);OGATE::QAR2(J),XS(e)
- P(l);N_GUARD::S(G),XP(i)
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).