MESON Chess Problem Database
Problem Display
PID: 198252 (1bBR4/8/N1r5/1pp1R2n/2k5/1p1p1N2/r2Q3K/B2n4 w - - 0 1)
Sheppard, Charles William
Rivista del Club Argentino de Ajedrez, 1920
#2
8 + 10
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Rxa1
- 2.Qxd3#
- 1...Rxd2+
- 2.Sxd2#
- 1...Ra3
- 2.Qxd3#
- 1...Ra4
- 2.Qxd3#
- 1...Ra5
- 2.Qxd3#
- 1...Rd6
- 2.Rxc5#
- 1...Re6
- 2.Bxe6#
- 1...Rc7
- 2.Be6#
- 2.Re4#
- 1...Bxe5+
- 2.Sxe5#
- 1...Bd6
- 2.Be6#
- 1...Ba7
- 2.Re4#
- 1...Sb2
- 2.Qc1#
- 1...Sf2
- 2.Qc3#
- 1...Sf4
- 2.Re4#
- 1...b2
- 2.Qxd3#
- 1...Rxa1
- Tries
- 1.Kg1?
- threat
- 2.Re4#
- 2.Qxd3#
- 1...Rxd2
- 2.Sxd2#
- 2.Re4#
- 1...Raxa6
- 2.Re4#
- 1...Rcxa6
- 2.Re4#
- 1...Bxe5
- 2.Sxe5#
- 2.Qxd3#
- 1...b2
- 2.Qxd3#
- 1...b4
- 2.Qxd3#
- 1...Rd6
- 2.Rxc5#
- 1...Re6
- 2.Bxe6#
- 2.Rxc5#
- 2.Qxd3#
- 1...Bd6
- 2.Be6#
- 1...Sb2
- 2.Re4#
- 2.Qc1#
- 1...Sf2
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 2.Qxd3#
- 1...Sg3
- 2.Qxd3#
- 1...Sf4
- 2.Re4#
- 2.Qxf4#
- 1...Sf6
- 2.Qxd3#
- 1...Rg6+!
- threat
- 1.Kh3?
- threat
- 2.Re4#
- 2.Qxd3#
- 1...Sf4+
- 2.Qxf4#
- 1...Rxd2
- 2.Sxd2#
- 2.Re4#
- 1...Raxa6
- 2.Re4#
- 1...Rcxa6
- 2.Re4#
- 1...Bxe5
- 2.Sxe5#
- 2.Qxd3#
- 1...b2
- 2.Qxd3#
- 1...b4
- 2.Qxd3#
- 1...Rd6
- 2.Rxc5#
- 1...Re6
- 2.Bxe6#
- 2.Rxc5#
- 2.Qxd3#
- 1...Bd6
- 2.Be6#
- 1...Sb2
- 2.Re4#
- 2.Qc1#
- 1...Sc3
- 2.Qxc3#
- 2.Qxd3#
- 1...Sg3
- 2.Qxd3#
- 1...Sf6
- 2.Qxd3#
- 1...Sf2+!
- threat
- 1.Qc2+?
- 1...Sc3
- 2.Sd2#
- 1...bxc2
- 2.Sd2#
- 1...dxc2
- 2.Sd2#
- 1...Rxc2+!
- 1...Sc3
- 1.Kg1?
- Keys
- 1.Bf5!
- threat
- 2.Bxd3#
- 1...Rxd2+
- 2.Sxd2#
- 1...Bxe5+
- 2.Sxe5#
- 1...b2
- 2.Qxd3#
- 1...Rd6
- 2.Rxc5#
- 1...Sb2
- 2.Qc1#
- 1...Sf2
- 2.Qc3#
- 1...Sf4
- 2.Re4#
- threat
- 1.Bf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 7
- Sets
- R(b);N_PINQ(B),XB(A)::QAB1(B),XP(d)
- R(b);CHECK,XQ(B)::S(D),XR(b)
- R(b);N_PINQ(B)::QAB1(B),XP(d)
- R(i);N_PINR(E)::R1(E),XP(g)
- R(i);N_GUARD::B(G),XR(i)
- B(j);CHECK,XR(E)::S(D),XB(j)
- B(j);S_CUTR(i)::B(G)
- B(j);N_PINR(E)::R(E)
- S(a);N_PINQ(B)::QAR(B)
- S(a);N_PINQ(B)::QAR1(B)
- S(h);N_PINR(E)::R(E)
- P(c);N_PINQ(B)::QAB1(B),XP(d)
- Tries
- Try
- K(C);N_SPINQ(B),N_SPINR(E),S_FLIGHT
- Threat
- DUALS(2)
- Vars
- R(b);XS(F)::R(E)
- R(i);XS(F)::R(E)
- P(c);::QAB1(B),XP(d)
- P(f);::QAB1(B),XP(d)
- R(i);N_GUARD::R1(E),XP(g)
- B(j);S_CUTR(i)::B(G)
- S(a);N_GUARD::QAR1(B)
- S(h);::QAB1(B),XP(d)
- Refutation
- R(i);CHECK
- Try
- K(C);N_SPINQ(B),N_SPINR(E),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- S(h);CHECK,N_GUARD::QAR(B),XS(h)
- R(b);XS(F)::R(E)
- R(i);XS(F)::R(E)
- P(c);::QAB1(B),XP(d)
- P(f);::QAB1(B),XP(d)
- R(i);N_GUARD::R1(E),XP(g)
- B(j);S_CUTR(i)::B(G)
- S(h);::QAB1(B),XP(d)
- Refutation
- S(a);CHECK
- Try
- Q(B);CHECK
- Vars
- S(a);P_SPINS(a)::S(D)
- P(c);XQ(B)::S(D)
- P(d);XQ(B)::S(D)
- Refutation
- R(b);CHECK,XQ(B)
- Try
- Actual
- B(G);
- Threat
- B(G),XP(d)
- Vars
- R(b);CHECK,XQ(B)::S(D),XR(b)
- B(j);CHECK,XR(E)::S(D),XB(j)
- P(c);N_PINQ(B)::QAB1(B),XP(d)
- R(i);N_PINR(E)::R1(E),XP(g)
- S(a);N_PINQ(B)::QAR(B)
- S(a);N_PINQ(B)::QAR1(B)
- S(h);N_PINR(E)::R(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).