MESON Chess Problem Database
Problem Display
PID: 50341 (4R3/2p5/2Pk1P1n/Nrpn1PP1/B5pK/6N1/1q2r1Q1/6B1 w - - 0 1)
Youngs, Joe Casey
StrateGems, 2003
#2
11 + 9
SOLUTION
- SOUND
- Sets
- 1...Qe5
- 2.Rd8#
- 1...Rc2
- 2.Se4#
- 2.Re6#
- 1...Rd2
- 2.Se4#
- 2.Re6#
- 1...Rf2
- 2.Se4#
- 2.Re6#
- 1...Rxg2
- 2.Se4#
- 2.Re6#
- 1...Re4
- 2.Sxe4#
- 1...Re5
- 2.Rd8#
- 1...Re6
- 2.Rxe6#
- 1...Rb3
- 2.Sc4#
- 1...Rb6
- 2.Sc4#
- 1...Rb7
- 2.Sc4#
- 1...Rb8
- 2.Sc4#
- 1...Sc3
- 2.Sc4#
- 1...Se3
- 2.Re6#
- 1...Sb4
- 2.Sc4#
- 1...Sf4
- 2.Sc4#
- 1...Sb6
- 2.Sb7#
- 1...Sxf6
- 2.Sc4#
- 1...Se7
- 2.Sc4#
- 1...Sxf5+
- 2.Sxf5#
- 1...Qe5
- Tries
- 1.Be3?
- threat
- 2.Se4#
- 2.Re6#
- 1...Sxf5+
- 2.Sxf5#
- 1...Qxf6
- 2.Se4#
- 1...Sxe3
- 2.Re6#
- 1...Sxf6
- 2.Sc4#
- 2.Re6#
- 1...Se7
- 2.Sc4#
- 1...Qd4
- 2.Re6#
- 1...Qe5
- 2.Rd8#
- 1...Qb1
- 2.Re6#
- 1...Qc2
- 2.Re6#
- 1...Qb4
- 2.Re6#
- 1...Rb4
- 2.Re6#
- 1...Sc3
- 2.Sc4#
- 2.Re6#
- 1...Sb4
- 2.Sc4#
- 2.Re6#
- 1...Sf4
- 2.Sc4#
- 1...Sb6
- 2.Sb7#
- 2.Re6#
- 1...Rxe3!
- threat
- 1.Bxb5?
- threat
- 2.Sc4#
- 2.Sb7#
- 1...Sxf5+
- 2.Sxf5#
- 1...Rxe8
- 2.Sc4#
- 1...Re6
- 2.Sc4#
- 2.Rxe6#
- 1...Re7
- 2.Sc4#
- 1...Se7
- 2.Sc4#
- 1...Qc1
- 2.Sb7#
- 1...Qc3
- 2.Sb7#
- 1...Qd4
- 2.Sb7#
- 1...Qa2
- 2.Sb7#
- 1...Qc2
- 2.Sb7#
- 1...Qb3
- 2.Sb7#
- 1...Qb4
- 2.Sb7#
- 1...Rc2
- 2.Se4#
- 2.Sb7#
- 2.Re6#
- 1...Re4
- 2.Sxe4#
- 2.Sb7#
- 1...Se3
- 2.Sb7#
- 2.Re6#
- 1...Sb6
- 2.Sb7#
- 1...c4
- 2.Sxc4#
- 2.Sb7#
- 1...Qxb5!
- threat
- 1.Be3?
- Keys
- 1.Bh2!
- threat
- 2.Se4#
- 1...Sxf5+
- 2.Sxf5#
- 1...Sxf6
- 2.Sc4#
- 1...Se7
- 2.Sc4#
- 1...Qe5
- 2.Rd8#
- 1...Re4
- 2.Sxe4#
- 1...Sc3
- 2.Sc4#
- 1...Se3
- 2.Re6#
- 1...Sb4
- 2.Sc4#
- 1...Sf4
- 2.Sc4#
- 1...Sb6
- 2.Sb7#
- threat
- 1.Bh2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- Q(a);SBLOCK::R(K)
- R(b);N_GUARD::S(C),XR(b)
- R(b);SBLOCK::R(K)
- R(b);N_GUARD::R1(K),XR(b)
- R(d);::S(F)
- S(f);::S(F)
- S(f);S_CUTR(b)::R1(K)
- S(f);S_CUTR(d)::S(F)
- S(f);XP(J)::S(F)
- S(h);CHECK,XP(G)::S(C),XS(h)
- Tries
- Try
- B(A);
- Threat
- DUALS(2)
- Vars
- S(h);CHECK,XP(G)::S(C),XS(h)
- Q(a);P_PINP(H),XP(J)::S(C)
- S(f);XB(A)::R1(K)
- S(f);::S(F)
- Q(a);::R1(K)
- Q(a);SBLOCK::R(K)
- R(d);::R1(K)
- Refutation
- R(b);XB(A)
- Try
- B(D);XR(d)
- Threat
- DUALS(2)
- Vars
- S(h);CHECK,XP(G)::S(C),XS(h)
- R(b);XR(K)::S(F)
- R(b);::S(F)
- S(f);::S(F)
- Q(a);::S(F)
- Refutation
- Q(a);XB(D)
- Try
- Actual
- B(A);
- Threat
- B(A)+S(C),DCHECK
- Vars
- S(h);CHECK,XP(G)::B(A)+S(C),DCHECK,XS(h)
- S(f);XP(J)::S(F)
- S(f);::S(F)
- Q(a);SBLOCK::R(K)
- R(b);::B(A)+S(C),DCHECK,XR(b)
- S(f);S_CUTR(b)::R1(K)
- S(f);S_CUTR(d)::S(F)
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).