MESON Chess Problem Database
Problem Display
PID: 263116 (3n2K1/2RN2Pp/2Pp1P2/1BPkB1N1/3p1Rr1/4p3/b1Q2r2/1n5q w - - 0 1)
Labai, Zoltan
Svitek, Miroslav
4th Prize, SuperProblem, 2021
#2
12 + 11
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qe4
- 2.Qxe4#
- 1...Qc1
- 2.Qe4#
- 1...Qd1
- 2.Qe4#
- 1...Qe1
- 2.Qe4#
- 1...Qf1
- 2.Qe4#
- 1...Qg1
- 2.Qe4#
- 1...Qh2
- 2.Qe4#
- 1...Qh3
- 2.Qe4#
- 1...Qh4
- 2.Qe4#
- 1...Qh5
- 2.Qe4#
- 1...Qh6
- 2.Qe4#
- 1...Rf1
- 2.Qxa2#
- 1...Rfg2
- 2.Qe4#
- 1...Rf3
- 2.Qe4#
- 2.Qxa2#
- 1...Rfxf4
- 2.Qxa2#
- 1...Rg1
- 2.Rxd4#
- 1...Rgg2
- 2.Rxd4#
- 2.Qe4#
- 1...Rg3
- 2.Rxd4#
- 1...Bb3
- 2.Qxb3#
- 1...Bc4
- 2.Bxc4#
- 2.Qxc4#
- 1...Sxc6
- 2.Bxc6#
- 1...e2
- 2.Qxa2#
- 1...d3
- 2.Qxd3#
- 1...dxc5
- 2.Qxc5#
- 1...dxe5
- 2.Sb6#
- 1...Qe4
- Tries
- 1.Bxd6?
- threat
- 2.Sb6#
- 2.Qf5#
- 1...Rxc2
- 2.Sb6#
- 2.Rf5#
- 1...Rfxf4
- 2.Sb6#
- 2.Qxa2#
- 1...Rgxf4
- 2.Sb6#
- 1...Sxc6
- 2.Sb6#
- 2.Bxc6#
- 1...Qe4
- 2.Sb6#
- 2.Qxe4#
- 1...Sf7
- 2.Sb6#
- 1...d3
- 2.Sb6#
- 2.Qxd3#
- 1...Rxg5!
- threat
- 1.Rf5?
- threat
- 2.Sb6#
- 2.Bf4#
- 1...Rxc2
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Bxd6#
- 1...Rxf5
- 2.Qxa2#
- 1...Sxc6
- 2.Sb6#
- 2.Bxc6#
- 1...dxe5
- 2.Sb6#
- 2.Rxe5#
- 1...Qe4
- 2.Sb6#
- 1...Rff4
- 2.Sb6#
- 2.Bxf4#
- 2.Qxa2#
- 1...Re4
- 2.Sb6#
- 1...Rgf4
- 2.Sb6#
- 2.Bxf4#
- 1...Bc4
- 2.Bxc4#
- 2.Bf4#
- 2.Qxc4#
- 1...Sc3
- 2.Bf4#
- 1...Sf7
- 2.Sb6#
- 1...d3
- 2.Sb6#
- 1...Rxg5!
- threat
- 1.Bxd6?
- Keys
- 1.Qf5!
- threat
- 2.Bxd4#
- 2.Bxd6#
- 1...Rfxf4
- 2.Bxf4#
- 1...Rgxf4
- 2.Bxf4#
- 1...Rxg5
- 2.Rxd4#
- 1...Sxc6
- 2.Qe6#
- 1...dxc5
- 2.Sb6#
- 1...dxe5
- 2.Qxe5#
- 1...Qe4
- 2.Qxe4#
- 1...Sf7
- 2.Qe6#
- 1...d3
- 2.Ba1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Bxd6#
- 2.Qxd3#
- threat
- 1.Qf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 3
- REMOVED MATES = 17
- Sets
- Q(b);N_GUARD::QAB1(A),XQ(b)
- Q(b);N_GUARD::QAB1(A)
- R(d);N_GUARD::QAB(A),XB(c)
- R(d);S_CUTQ(b)::QAB1(A)
- R(d);N_GUARD,XR(B)::QAB(A),XB(c)
- R(g);N_GUARD::R1(B),XP(f)
- B(c);N_GUARD::QAB(A),XB(c)
- S(k);OGATE,XP(G)::B(C),XS(k)
- P(e);S_CUTR(d)::QAB(A),XB(c)
- P(f);OGATEB::QAR2(A),XP(f)
- P(i);OGATE,XP(D)::QAR1(A),XP(i)
- P(i);SBLOCK,XB(E)::S(J)
- Tries
- Try
- B(E);XP(i)
- Threat
- DUALS(2)
- Vars
- R(g);XR(B)::S(J)
- S(k);::S(J)
- Refutation
- R(g);P_PINP(K),XS(F)
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- R(d);N_GUARD,XR(B)::QAB(A),XB(c)
- Q(b);::S(J)
- R(g);::S(J)
- S(a);::R(B)+B(E)
- S(k);::S(J)
- P(f);::S(J)
- Refutation
- R(g);P_PINP(K),XS(F)
- Try
- Actual
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(d);OGATE,XR(B)::QAR(A)+B(E),XR(d)
- R(g);OGATE,XR(B)::QAR(A)+B(E),XR(g)
- R(g);N_GUARD,P_PINP(K),XS(F)::R1(B),XP(f)
- S(k);N_GUARD,XP(G)::QAB1(A)
- P(i);SBLOCK,XP(D)::S(J)
- P(i);OGATE,P_SPINP(i),XB(E)::QAR1(A),XP(i)
- Q(b);N_GUARD::QAB1(A),XQ(b)
- S(k);N_GUARD::QAB1(A)
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).