MESON Chess Problem Database
Problem Display
PID: 263894 (4Nb2/BrP1p2R/1r6/2QnkpN1/p4p2/Kp1B2P1/4PRn1/3b4 w - - 0 1)
Svitek, Miroslav
Uris, Miguel
Best Problems, 2022
#2
11 + 12
SOLUTION
- SOUND
- Sets
- 1...Rb5
- 2.Qd4#
- 1...Ra6
- 2.Qd4#
- 1...Rc6
- 2.Qd4#
- 1...Rd6
- 2.Qd4#
- 1...Re6
- 2.Sf3#
- 2.Sf7#
- 2.Qd4#
- 1...Rf6
- 2.Qd4#
- 1...Rg6
- 2.Qd4#
- 1...Rh6
- 2.Qd4#
- 1...Se1
- 2.gxf4#
- 1...Se3
- 2.gxf4#
- 1...Sh4
- 2.gxf4#
- 1...fxg3
- 2.Rxf5#
- 1...e6
- 2.Sf3#
- 2.Sf7#
- 1...Rb5
- Tries
- 1.Bc4?
- threat
- 2.Qxd5#
- 1...Rb5
- 2.Qd4#
- 1...Rd6
- 2.Qd4#
- 1...Se3
- 2.gxf4#
- 1...e6!
- threat
- 1.Bxb6?
- threat
- 2.Qd4#
- 1...e6
- 2.Sf3#
- 2.Sf7#
- 1...Rxb6!
- threat
- 1.Rxf4?
- threat
- 2.Rxf5#
- 2.Qd4#
- 1...e6
- 2.Sf3#
- 2.Sf7#
- 1...Rb4
- 2.Rxf5#
- 1...Rf6
- 2.Qd4#
- 1...Se3
- 2.Qd4#
- 1...Sh4
- 2.Qd4#
- 1...Sxf4!
- threat
- 1.Rh6?
- threat
- 2.Sf3#
- 2.Sf7#
- 1...Rxh6
- 2.Qd4#
- 1...Bxe2
- 2.Sf7#
- 1...fxg3
- 2.Sf7#
- 2.Rxf5#
- 1...Rf6
- 2.Qd4#
- 1...Rg6
- 2.Qd4#
- 1...Se1
- 2.Sf7#
- 2.gxf4#
- 1...Sh4
- 2.Sf7#
- 2.gxf4#
- 1...f3
- 2.Sxf3#
- 2.Sf7#
- 1...Bxh6!
- threat
- 1.Rxe7+?
- 1...Re6
- 2.Sf3#
- 2.Sf7#
- 2.Rxe6#
- 2.Qd4#
- 2.Qd6#
- 1...Bxe7!
- 1...Re6
- 1.e3?
- threat
- 2.Qd4#
- 1...Sxe3
- 2.gxf4#
- 1...fxe3
- 2.Rxf5#
- 1...e6
- 2.Sf7#
- 1...Rb4!
- threat
- 1.e4?
- threat
- 2.Qxd5#
- 1...fxe4 ep
- 2.Rxf5#
- 1...e6
- 2.Sf7#
- 1...Rb5
- 2.Qd4#
- 1...Rd6
- 2.Qd4#
- 1...Se3
- 2.gxf4#
- 1...fxe4!
- threat
- 1.c8Q?
- threat
- 2.Sf3#
- 2.Sf7#
- 2.Qxf5#
- 1...Bxe2
- 2.Sf7#
- 2.Qxf5#
- 1...fxg3
- 2.Sf7#
- 2.Rxf5#
- 2.Qxf5#
- 1...e6
- 2.Sf3#
- 1...Re6
- 2.Sf3#
- 2.Sf7#
- 2.Qd4#
- 2.Qxe6#
- 1...Rf6
- 2.Sf3#
- 2.Qd4#
- 1...Se1
- 2.Sf7#
- 2.Qxf5#
- 2.gxf4#
- 1...Se3
- 2.Sf3#
- 2.Sf7#
- 2.gxf4#
- 1...Sh4
- 2.Sf7#
- 2.gxf4#
- 1...f3
- 2.Sxf3#
- 2.Sf7#
- 2.Qxf5#
- 1...Rd7!
- threat
- 1.c8B?
- threat
- 2.Sf3#
- 2.Sf7#
- 1...Bxe2
- 2.Sf7#
- 1...fxg3
- 2.Sf7#
- 2.Rxf5#
- 1...e6
- 2.Sf3#
- 1...Rf6
- 2.Sf3#
- 2.Qd4#
- 1...Se1
- 2.Sf7#
- 2.gxf4#
- 1...Sh4
- 2.Sf7#
- 2.gxf4#
- 1...f3
- 2.Sxf3#
- 2.Sf7#
- 1...Rd7!
- threat
- 1.Bc4?
- Keys
- 1.Rf7!
- threat
- 2.Rxf5#
- 1...e6
- 2.Sf3#
- 1...Rf6
- 2.Qd4#
- 1...Se3
- 2.gxf4#
- 1...Sh4
- 2.gxf4#
- threat
- 1.Rf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 8
- Sets
- R(i);::QAB1(F)
- S(b);N_GUARD::P(E),XP(e)
- P(e);OGATE,XP(E)::R1(B),XP(h)
- Tries
- Try
- B(D);
- Threat
- QAR1(F),XS(f)
- Vars
- R(i);::QAB1(F)
- S(b);N_GUARD::P(E),XP(e)
- Refutation
- P(k);P_PINQ(F)
- Try
- B(H);XR(i)
- Threat
- QAB1(F)
- Refutation
- R(j);XB(H)
- Try
- R(B);XP(e)
- Threat
- DUALS(2)
- Vars
- R(i);::R1(B),XP(h)
- R(i);::QAB1(F)
- S(b);::QAB1(F)
- Refutation
- S(b);XR(B)
- Try
- R(J);
- Threat
- DUALS(2)
- Vars
- R(i);XR(J)::QAB1(F)
- B(a);XP(A)::S(G)
- R(i);::QAB1(F)
- Refutation
- B(l);XR(J)
- Try
- R(J);CHECK,XP(k)
- Refutation
- B(l);P_PINQ(F),XR(J)
- Try
- P(A);
- Threat
- QAB1(F)
- Vars
- S(b);N_GUARD,XP(A)::P(E),XP(e)
- P(e);OGATE,XP(A)::R1(B),XP(h)
- P(k);P_PINQ(F),SBLOCK::S(G)
- Refutation
- R(i);
- Try
- P(A);
- Threat
- QAR1(F),XS(f)
- Vars
- P(e);EP,OGATE,XP(A)::R1(B),XP(h)
- P(k);P_PINQ(F),SBLOCK::S(G)
- R(i);::QAB1(F)
- S(b);N_GUARD::P(E),XP(e)
- Refutation
- P(h);XP(A)
- Try
- P(I);
- Threat
- DUALS(3)
- Vars
- P(k);P_PINQ(F)::S(G)
- Refutation
- R(j);
- Try
- P(I);
- Threat
- DUALS(2)
- Vars
- B(a);XP(A)::S(G)
- P(k);P_PINQ(F)::S(G)
- Refutation
- R(j);
- Try
- Actual
- R(J);
- Threat
- R1(J),XP(h)
- Vars
- P(k);P_PINQ(F),SBLOCK::S(G)
- R(i);::QAB1(F)
- S(b);N_GUARD::P(E),XP(e)
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).