MESON Chess Problem Database
Problem Display
PID: 216154 (Bq2r1N1/6bK/N1R4p/p2kB2p/R5pQ/8/2p3p1/8 w - - 0 1)
Piliczewski, Bogusz
Probleemblad, 2019
#2
8 + 10
SOLUTION
- SOUND
- Sets
- 1...Kxe5
- 2.Qxh5#
- 1...Re6
- 2.Rc5#
- 1...g3
- 2.Qd4#
- 2.Qe4#
- 1...Kxe5
- Tries
- 1.Sc7+?
- 1...Kxe5
- 2.Qxh5#
- 1...Qxc7!
- 1...Kxe5
- 1.Sf6+?
- 1...Kxe5
- 2.Qxh5#
- 1...Bxf6!
- 1...Kxe5
- 1.Se7+?
- 1...Kxe5
- 2.Qe1#
- 2.Qg3#
- 2.Qxh5#
- 1...Rxe7!
- 1...Kxe5
- 1.Qg3?
- threat
- 2.Rd4#
- 2.Rd6#
- 1...Qxe5
- 2.Qb3#
- 1...Qxa8
- 2.Rd6#
- 1...Rxe5
- 2.Qd3#
- 1...Bxe5
- 2.Qxg2#
- 1...Qd6
- 2.Rxd6#
- 1...Qb7
- 2.Rd6#
- 1...g1Q
- 2.Rd6#
- 1...g1B
- 2.Rd6#
- 1...Qa7
- 2.Rd6#
- 1...Qb2
- 2.Sc7#
- 2.Rd6#
- 1...Qb6
- 2.Rd6#
- 1...Qb4!
- threat
- 1.Qf6?
- threat
- 2.Rd4#
- 2.Rc5#
- 2.Rd6#
- 1...Qxe5
- 2.Rc5#
- 2.Rd6#
- 2.Rc8#
- 1...Rxe5
- 2.Rc5#
- 2.Rd6#
- 1...Qb4
- 2.Rc5#
- 1...g1Q
- 2.Rc5#
- 2.Rd6#
- 1...g1B
- 2.Rc5#
- 2.Rd6#
- 1...Qd6
- 2.Rd4#
- 2.Rc5#
- 2.Rxd6#
- 2.Qxd6#
- 1...Qa7
- 2.Rc5#
- 2.Rd6#
- 2.Qd6#
- 1...Qb2
- 2.Sc7#
- 2.Rc5#
- 2.Rd6#
- 2.Qd6#
- 1...Qb6
- 2.Rc5#
- 2.Rd6#
- 2.Qd6#
- 1...Bxf6!
- threat
- 1.Qe7?
- threat
- 2.Rd4#
- 2.Rc5#
- 2.Rd6#
- 2.Qc5#
- 1...Qxe5
- 2.Rc5#
- 2.Rd6#
- 2.Rc8#
- 2.Qc5#
- 1...Qxa8
- 2.Rc5#
- 2.Rd6#
- 2.Qc5#
- 2.Qd6#
- 1...Bxe5
- 2.Rc5#
- 2.Rd6#
- 2.Qc5#
- 1...Qb4
- 2.Rc5#
- 1...Qb7
- 2.Rc5#
- 2.Rd6#
- 2.Qc5#
- 2.Qd6#
- 1...c1Q
- 2.Rd4#
- 2.Rc5#
- 2.Rd6#
- 1...c1R
- 2.Rd4#
- 2.Rc5#
- 2.Rd6#
- 1...g1Q
- 2.Rc5#
- 2.Rd6#
- 1...g1B
- 2.Rc5#
- 2.Rd6#
- 1...Qd6
- 2.Rd4#
- 2.Rc5#
- 2.Rxd6#
- 2.Qxd6#
- 1...Qa7
- 2.Rc5#
- 2.Rd6#
- 2.Qd6#
- 1...Qb2
- 2.Sc7#
- 2.Rc5#
- 2.Rd6#
- 2.Qc5#
- 2.Qd6#
- 1...Qb5
- 2.Sc7#
- 2.Rd4#
- 2.Rc5#
- 2.Rd6#
- 2.Qd6#
- 1...Qb6
- 2.Rc5#
- 2.Rd6#
- 2.Qd6#
- 1...Bf8
- 2.Sf6#
- 2.Rd4#
- 2.Rc5#
- 2.Rd6#
- 1...Rxe7!
- threat
- 1.Qxg4?
- threat
- 2.Rc5#
- 2.Qd4#
- 2.Qe4#
- 1...Kxe5
- 2.Qxh5#
- 2.Qe4#
- 1...Qxe5
- 2.Rxa5#
- 2.Qc4#
- 1...Qxa8
- 2.Rc5#
- 2.Qe4#
- 1...Rxe5
- 2.Rd4#
- 2.Qc4#
- 2.Qd4#
- 1...Bxe5
- 2.Qf3#
- 2.Qxg2#
- 2.Qc4#
- 2.Qe4#
- 1...Qb7
- 2.Rc5#
- 2.Qe4#
- 1...g1Q
- 2.Rc5#
- 2.Qe4#
- 1...g1B
- 2.Rc5#
- 2.Qe4#
- 1...Qd6
- 2.Rc5#
- 1...Qa7
- 2.Rc5#
- 2.Qe4#
- 1...Qb2
- 2.Rc5#
- 2.Qe4#
- 1...Qb4
- 2.Rc5#
- 1...Qb6
- 2.Rc5#
- 2.Qe4#
- 1...hxg4!
- threat
- 1.Qxh5?
- threat
- 2.Rd4#
- 2.Rd6#
- 1...Qxe5
- 2.Sc7#
- 1...Qxa8
- 2.Rd6#
- 1...Rxe5
- 2.Se7#
- 1...Bxe5
- 2.Sf6#
- 1...Qd6
- 2.Rxd6#
- 1...Qb7
- 2.Rd6#
- 1...g1Q
- 2.Rd6#
- 1...g1B
- 2.Rd6#
- 1...Qa7
- 2.Rd6#
- 1...Qb2
- 2.Sc7#
- 2.Rd6#
- 1...Qb6
- 2.Rd6#
- 1...Qb4!
- threat
- 1.Sc7+?
- Keys
- 1.Qe1!
- threat
- 2.Rd4#
- 2.Rd6#
- 2.Qe4#
- 1...Qxe5
- 2.Qxa5#
- 1...Qxa8
- 2.Rd6#
- 2.Qe4#
- 1...Rxe5
- 2.Qd2#
- 1...Bxe5
- 2.Qe4#
- 1...Qd6
- 2.Rxd6#
- 1...Qb7
- 2.Rd6#
- 2.Qe4#
- 1...g1Q
- 2.Rd6#
- 2.Qe4#
- 1...g1B
- 2.Rd6#
- 2.Qe4#
- 1...Qa7
- 2.Rd6#
- 2.Qe4#
- 1...Qb2
- 2.Sc7#
- 2.Rd6#
- 2.Qe4#
- 1...Qb4
- 2.Sc7#
- 1...Qb6
- 2.Rd6#
- 2.Qe4#
- threat
- 1.Qe1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 2
- Sets
- K(e);OGATEB,P-FLIGHT,XB(C)::QAR(B),XP(f)
- R(j);SBLOCK::B(G)+R(E),DCHECK
- Tries
- Try
- S(D);CHECK
- Vars
- K(e);P-FLIGHT,XB(C)::QAR(B),XP(f)
- Refutation
- Q(i);XS(D)
- Try
- S(H);CHECK
- Vars
- K(e);P-FLIGHT,XB(C)::QAR(B),XP(f)
- Refutation
- B(h);XS(H)
- Try
- S(H);CHECK
- Refutation
- R(j);XS(H)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- Q(i);N_GUARD,SBLOCK,XB(C)::QAB(B)
- Q(i);XB(G)::R1(E)
- R(j);SBLOCK,XB(C)::QAR2(B)
- B(h);SBLOCK,XB(C)::QAB(B),XP(b)
- Q(i);::B(G)+R(E),DCHECK,XQ(i)
- Q(i);::R1(E)
- P(b);::B(G)+R(E),DCHECK
- Q(i);::B(G)+R(E),DCHECK
- Refutation
- Q(i);
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- Q(i);::B(G)+R(E),DCHECK
- Refutation
- B(h);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(4)
- Vars
- Q(i);::B(G)+R(E),DCHECK
- Refutation
- R(j);XQ(B)
- Try
- Q(B);XP(c)
- Threat
- DUALS(3)
- Vars
- Q(i);::B(G)+R(E),DCHECK
- Refutation
- P(f);XQ(B)
- Try
- Q(B);XP(f)
- Threat
- DUALS(2)
- Vars
- Q(i);N_GUARD,P_SPINQ(i),XB(C)::S(D)
- Q(i);XB(G)::R1(E)
- R(j);N_GUARD,P_SPINR(j),XB(C)::S(H)
- B(h);N_GUARD,P_SPINB(h),XB(C)::S(H)
- Q(i);::B(G)+R(E),DCHECK,XQ(i)
- Q(i);::R1(E)
- P(b);::B(G)+R(E),DCHECK
- Q(i);::B(G)+R(E),DCHECK
- Refutation
- Q(i);
- Try
- Actual
- Q(B);
- Threat
- DUALS(3)
- Vars
- Q(i);N_GUARD,SBLOCK,XB(C)::QAR(B),XP(d)
- R(j);SBLOCK,XB(C)::QAR(B)
- B(h);XB(C)::QAB1(B)
- Q(i);::B(G)+R(E),DCHECK,XQ(i)
- Q(i);N_GUARD::S(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).