MESON Chess Problem Database
Problem Display
PID: 275158 (3N4/1p1P1Pp1/1P1Rp1Pp/2P1kp1P/R1p1N2P/8/3PK3/1BB1Q3 w - - 0 1)
Svitek, Miroslav
Tehtavaniekka, 2024
#2
16 + 7
SOLUTION
- SOUND
- Sets
- 1...Kf4
- 2.Qg3#
- 1...c3
- 2.d4#
- 1...Kf4
- Tries
- 1.Sc6+?
- 1...Kf4
- 2.Qg3#
- 1...bxc6!
- 1...Kf4
- 1.Bb2+?
- 1...Kf4
- 2.Qg3#
- 1...c3!
- 1...Kf4
- 1.Ra5?
- 1...Kf4
- 2.Qg3#
- 1...f4
- 2.c6#
- 1...c3
- 2.d4#
- 1...fxe4!
- 1...Kf4
- 1.f8Q?
- 1...Kf4
- 2.Qg3#
- 1...fxe4
- 2.Qg3#
- 1...c3
- 2.d4#
- 1...f4!
- 1...Kf4
- 1.f8R?
- 1...Kf4
- 2.Qg3#
- 1...fxe4
- 2.Qg3#
- 1...c3
- 2.d4#
- 1...f4!
- 1...Kf4
- 1.Sc6+?
- Keys
- 1.Sf6!
- 1...Kf4
- 2.d4#
- 1...Kxf6
- 2.Rxe6#
- 1...gxf6
- 2.Kf3#
- 1...f4
- 2.Sg4#
- 1...c3
- 2.Rxe6#
- 1...Kf4
- 1.Sf6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- K(b);S_CUTP(c),S_FLIGHT::QAB1(C)
- P(a);N_GUARD::P(D)
- Tries
- Try
- S(P);CHECK
- Vars
- K(b);S_FLIGHT::QAB1(C)
- Refutation
- P(f);XS(P)
- Try
- B(B);CHECK
- Vars
- K(b);S_FLIGHT::QAB1(C)
- Refutation
- P(a);P_SPINP(a)
- Try
- R(F);
- Vars
- K(b);S_CUTP(c),S_FLIGHT::QAB1(C)
- P(c);SBLOCK::R(F)+P(I)
- P(a);N_GUARD::P(D)
- Refutation
- P(c);XS(G)
- Try
- P(O);
- Vars
- K(b);P_SPINP(c),S_FLIGHT::QAB1(C)
- P(c);N_GUARD,XS(G)::QAB(C)
- P(a);N_GUARD::P(D)
- Refutation
- P(c);
- Try
- P(O);
- Vars
- K(b);P_SPINP(c),S_FLIGHT::QAB1(C)
- P(c);N_GUARD,XS(G)::QAB(C)
- P(a);N_GUARD::P(D)
- Refutation
- P(c);
- Try
- Actual
- S(G);
- Vars
- K(b);N_GUARD,P_SPINP(a),S_FLIGHT::B(B)+P(D)
- K(b);N_GUARD,P_SPINP(d),S_FLIGHT,XS(G)::R1(L),XP(d)
- P(g);SBLOCK,XS(G)::QAR(C)+K(E)
- P(c);N_GUARD,SBLOCK::S(G)
- P(a);::R1(L),XP(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).