MESON Chess Problem Database
Problem Display
PID: 145028 (3Q3B/2P3Pr/pR2R1pp/1p1r1p1P/3k4/N4pN1/nPP1PP2/1b3nK1 w - - 0 1)
Dobrila, Arsen
The Problemist, 1992
#2
14 + 12
SOLUTION
- SOUND
- Sets
- 1...Rd6
- 2.Qxd6#
- 1...Rd6
- Tries
- 1.Re4+?
- 1...Kc5
- 2.c8Q#
- 2.c8R#
- 1...fxe4!
- 1...Kc5
- 1.Qh4+?
- 1...Kc5
- 2.Rbc6#
- 2.Rec6#
- 2.c8Q#
- 2.c8R#
- 1...f4!
- 1...Kc5
- 1.Qf6+?
- 1...Re5
- 2.Qxe5#
- 1...Kc5!
- 1...Re5
- 1.c3+?
- 1...Kc5
- 2.Rbc6#
- 2.Rec6#
- 2.c8Q#
- 2.c8R#
- 1...Sxc3!
- 1...Kc5
- 1.c8Q?
- 1...Rxg7
- 2.Bxg7#
- 1...Rxh8
- 2.gxh8Q#
- 2.gxh8B#
- 1...Bxc2
- 2.Sxc2#
- 1...Sxg3
- 2.e3#
- 1...fxe2
- 2.Sxe2#
- 1...gxh5
- 2.Sxf5#
- 1...Rd6
- 2.Rbxd6#
- 2.Qxd6#
- 1...Rd7
- 2.Qdxd7#
- 1...Sd2
- 2.e3#
- 1...Sh2
- 2.e3#
- 1...Se3
- 2.fxe3#
- 1...Sc1
- 2.Qc3#
- 2.c3#
- 1...Sc3
- 2.Qxc3#
- 2.bxc3#
- 1...Sb4
- 2.Qc3#
- 2.c3#
- 1...b4
- 2.Qc4#
- 1...f4
- 2.Re4#
- 1...a5
- 2.Sxb5#
- 1...g5
- 2.Sxf5#
- 1...Rxd8!
- 1...Rxg7
- 1.c8R?
- 1...Rxg7
- 2.Bxg7#
- 1...Rxh8
- 2.gxh8Q#
- 2.gxh8B#
- 1...Bxc2
- 2.Sxc2#
- 1...Sxg3
- 2.e3#
- 1...fxe2
- 2.Sxe2#
- 1...gxh5
- 2.Sxf5#
- 1...Rd6
- 2.Rbxd6#
- 2.Qxd6#
- 1...Rd7
- 2.Qxd7#
- 1...Sd2
- 2.e3#
- 1...Sh2
- 2.e3#
- 1...Se3
- 2.fxe3#
- 1...Sc1
- 2.c3#
- 1...Sc3
- 2.bxc3#
- 1...Sb4
- 2.c3#
- 1...b4
- 2.Rc4#
- 1...f4
- 2.Re4#
- 1...a5
- 2.Sxb5#
- 1...g5
- 2.Sxf5#
- 1...Rxd8!
- 1...Rxg7
- 1.Re4+?
- Keys
- 1.Rbc6!
- 1...Rxd8
- 2.cxd8Q#
- 2.cxd8R#
- 1...Rxg7
- 2.Bxg7#
- 1...Rxh8
- 2.gxh8Q#
- 2.gxh8B#
- 1...Bxc2
- 2.Sxc2#
- 1...Sxg3
- 2.e3#
- 1...fxe2
- 2.Sxe2#
- 1...gxh5
- 2.Sxf5#
- 1...Rd6
- 2.Qxd6#
- 1...Rd7
- 2.Qxd7#
- 1...Sd2
- 2.e3#
- 1...Sh2
- 2.e3#
- 1...Se3
- 2.fxe3#
- 1...Sc1
- 2.c3#
- 1...Sc3
- 2.bxc3#
- 1...Sb4
- 2.c3#
- 1...b4
- 2.Rc4#
- 1...f4
- 2.Re4#
- 1...a5
- 2.Sxb5#
- 1...g5
- 2.Sxf5#
- 1...Rxd8
- 1.Rbc6!
This is a version of 87486
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 16
- REMOVED MATES = 0
- Sets
- R(g);OGATEB::QAR2(M),XR(g)
- Tries
- Try
- R(J);CHECK
- Vars
- K(e);N_SPINR(g),S_FLIGHT::P=Q
- Refutation
- P(h);XR(J)
- Try
- Q(M);CHECK,N_PINR(g)
- Refutation
- P(h);P_SPINP(h)
- Try
- Q(M);CHECK,N_PINR(g)
- Vars
- R(g);N_GUARD,P_SPINR(g)::QAB1(M),XR(g)
- Refutation
- K(e);S_FLIGHT
- Try
- P(C);CHECK
- Refutation
- S(c);XP(C)
- Try
- P(K);
- Vars
- R(l);OGATE,XP(L)::B(N),XR(l)
- R(l);OGATE,XB(N)::PXR(l)=Q
- B(a);XP(C)::S(F),XB(a)
- S(b);N_GUARD,XS(G)::P(D)
- P(d);XP(D)::S(G),XP(d)
- P(j);N_GUARD,XP(H)::S(G),XP(h)
- R(g);OGATEB::QAR(M),XR(g)
- S(b);N_GUARD::P(D)
- S(b);OGATE::P(E),XS(b)
- P(f);N_GUARD::QAR1(K)
- P(h);N_GUARD::R1(J)
- P(i);N_GUARD::S(F),XP(f)
- P(j);N_GUARD::S(G),XP(h)
- Refutation
- R(g);N_SPINR(g),XQ(M)
- Try
- P(K);
- Vars
- R(l);OGATE,XP(L)::B(N),XR(l)
- R(l);OGATE,XB(N)::PXR(l)=Q
- B(a);XP(C)::S(F),XB(a)
- S(b);N_GUARD,XS(G)::P(D)
- P(d);XP(D)::S(G),XP(d)
- P(j);N_GUARD,XP(H)::S(G),XP(h)
- R(g);OGATEB::QAR(M),XR(g)
- S(b);N_GUARD::P(D)
- S(b);OGATE::P(E),XS(b)
- S(c);N_GUARD::P(C)
- S(c);OGATE::P(B),XS(c)
- P(f);N_GUARD::R1(K)
- P(h);N_GUARD::R1(J)
- P(i);N_GUARD::S(F),XP(f)
- P(j);N_GUARD::S(G),XP(h)
- Refutation
- R(g);N_SPINR(g),XQ(M)
- Try
- Actual
- R(I);
- Vars
- R(g);N_SPINR(g),OGATE,XQ(M)::PXR(g)=Q
- R(l);OGATE,XP(L)::B(N),XR(l)
- R(l);OGATE,XB(N)::PXR(l)=Q
- B(a);XP(C)::S(F),XB(a)
- S(b);N_GUARD,XS(G)::P(D)
- P(d);XP(D)::S(G),XP(d)
- P(j);N_GUARD,XP(H)::S(G),XP(h)
- R(g);OGATEB::QAR2(M),XR(g)
- R(g);OGATEB::QAR(M),XR(g)
- S(b);N_GUARD::P(D)
- S(b);OGATE::P(E),XS(b)
- S(c);N_GUARD::P(C)
- S(c);OGATE::P(B),XS(c)
- P(f);N_GUARD::R1(I)
- P(h);N_GUARD::R1(J)
- P(i);N_GUARD::S(F),XP(f)
- P(j);N_GUARD::S(G),XP(h)
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).