MESON Chess Problem Database
Problem Display
PID: 137733 (6K1/3R3p/4BQ2/3p4/2n1kNN1/5p2/2Pq2P1/2b5 w - - 0 1)
Richter, Frank
Die Schwalbe, 2010
#2
8 + 7
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.Bxd5#
- 1...Qc3
- 2.Bxd5#
- 1...Qe3
- 2.Bxd5#
- 1...Qb4
- 2.Bxd5#
- 1...Qxf4
- 2.Bxd5#
- 1...Qxc2
- 2.Bxd5#
- 1...Qe2
- 2.Bxd5#
- 1...Qf2
- 2.Bxd5#
- 1...Qxg2
- 2.Bxd5#
- 1...Qd3
- 2.cxd3#
- 1...Qd4
- 2.Qf5#
- 1...Sb2
- 2.Qe5#
- 1...Sa3
- 2.Qe5#
- 1...Se3
- 2.Qe5#
- 1...Sa5
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sb6
- 2.Qe5#
- 1...Sd6
- 2.Qe5#
- 1...d4
- 2.Bd5#
- 2.Qf5#
- 1...Qe1
- Tries
- 1.Sh5?
- threat
- 2.Sg3#
- 2.Bf5#
- 2.gxf3#
- 1...Qxc2
- 2.Bf5#
- 1...Qxg2
- 2.Bxd5#
- 2.Bf5#
- 1...fxg2
- 2.Sg3#
- 1...Se5
- 2.Qxe5#
- 1...Qe1
- 2.Bxd5#
- 2.Bf5#
- 2.gxf3#
- 1...Qc3
- 2.Sg3#
- 2.Bxd5#
- 2.Bf5#
- 1...Qe3
- 2.Sg3#
- 2.Bxd5#
- 2.Bf5#
- 1...Qf4
- 2.Bxd5#
- 1...Qd1
- 2.Sg3#
- 2.Bf5#
- 1...Qe2
- 2.Sg3#
- 2.Bxd5#
- 2.Bf5#
- 1...Qf2
- 2.Bxd5#
- 2.Bf5#
- 1...Qd3
- 2.Sg3#
- 2.Bf5#
- 1...Se3
- 2.Sg3#
- 2.Qe5#
- 2.Qf4#
- 2.gxf3#
- 1...Sd6
- 2.Sg3#
- 2.Qe5#
- 2.gxf3#
- 1...f2
- 2.Sg3#
- 2.Bf5#
- 1...Qg5+!
- threat
- 1.Sg6?
- threat
- 2.Bf5#
- 2.gxf3#
- 1...Qxc2
- 2.Bf5#
- 1...Qxg2
- 2.Bxd5#
- 2.Bf5#
- 1...hxg6
- 2.gxf3#
- 1...Se5
- 2.Qxe5#
- 1...Qc3
- 2.Bxd5#
- 2.Bf5#
- 1...Qe3
- 2.Bxd5#
- 2.Bf5#
- 1...Qf4
- 2.Bxd5#
- 1...Qg5
- 2.gxf3#
- 1...Qd1
- 2.Bf5#
- 1...Qe2
- 2.Bxd5#
- 2.Bf5#
- 1...Qf2
- 2.Bxd5#
- 2.Bf5#
- 1...Qd3
- 2.Bf5#
- 1...Se3
- 2.Qe5#
- 2.Qf4#
- 2.gxf3#
- 1...Sd6
- 2.Qe5#
- 2.gxf3#
- 1...f2
- 2.Bf5#
- 1...fxg2!
- threat
- 1.Rxd5?
- threat
- 2.Qf5#
- 1...Qxf4
- 2.Rd4#
- 2.Qd4#
- 1...Qxd5
- 2.Bxd5#
- 1...Se3
- 2.Qe5#
- 1...Sd6
- 2.Qe5#
- 1...fxg2!
- threat
- 1.c3?
- threat
- 2.Qf5#
- 1...Qxc3
- 2.Bxd5#
- 1...Qxf4
- 2.Qd4#
- 1...Se3
- 2.Qe5#
- 1...Sd6
- 2.Qe5#
- 1...fxg2!
- threat
- 1.g3?
- threat
- 2.Bf5#
- 1...Qxf4
- 2.Bxd5#
- 1...Se5
- 2.Qxe5#
- 1...Se3
- 2.Qe5#
- 1...Sd6
- 2.Qe5#
- 1...f2!
- threat
- 1.Sh5?
- Keys
- 1.Re7!
- threat
- 2.Bxd5#
- 1...Qxf4
- 2.Bf5#
- 1...Se5
- 2.Qxe5#
- 1...d4
- 2.Bxc4#
- 2.Bd5#
- 2.Qf5#
- threat
- 1.Re7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 16
- Sets
- Q(b);N_GUARD::B(E),XP(f)
- Q(b);N_GUARD,XS(C)::B(E),XP(f)
- Q(b);N_GUARD,XP(A)::B(E),XP(f)
- Q(b);N_GUARD,P_PINS(D),XP(B)::B(E),XP(f)
- Q(b);OGATE::P(A),XQ(b)
- Q(b);SBLOCK::QAB1(F)
- S(d);N_GUARD::QAR1(F)
- S(d);N_GUARD::QAR1(F),XS(d)
- Tries
- Try
- S(C);
- Threat
- DUALS(3)
- Vars
- Q(b);XP(A)::B(E)
- P(c);XP(B)::S(C)
- S(d);N_GUARD::QAR1(F),XS(d)
- Q(b);N_GUARD::B(E),XP(f)
- Refutation
- Q(b);CHECK
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- Q(b);XP(A)::B(E)
- P(g);XS(C)::P(B),XP(c)
- S(d);N_GUARD::QAR1(F),XS(d)
- Q(b);N_GUARD::B(E),XP(f)
- Q(b);P_PINS(C)::P(B),XP(c)
- Q(b);::B(E)
- P(c);::B(E)
- Refutation
- P(c);XP(B)
- Try
- R(G);XP(f)
- Threat
- QAB1(F)
- Vars
- Q(b);OGATE,P_PINB(E),XR(G)::B(E),XQ(b)
- S(d);N_GUARD::QAR1(F)
- Refutation
- P(c);XP(B)
- Try
- P(A);
- Threat
- QAB1(F)
- Vars
- Q(b);N_GUARD,XP(A)::B(E),XP(f)
- Q(b);N_GUARD,SBLOCK,XS(C)::QAR1(F)
- S(d);N_GUARD::QAR1(F)
- Refutation
- P(c);XP(B)
- Try
- P(B);
- Threat
- B(E)
- Vars
- Q(b);N_GUARD,XS(C)::B(E),XP(f)
- S(d);N_GUARD::QAR1(F),XS(d)
- S(d);N_GUARD::QAR1(F)
- Refutation
- P(c);
- Try
- Actual
- R(G);
- Threat
- R(G)+B(E),DCHECK,XP(f)
- Vars
- Q(b);SBLOCK,XS(C)::R(G)+B(E),DCHECK
- S(d);N_GUARD::QAR1(F),XS(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).