MESON Chess Problem Database
Problem Display
PID: 163918 (8/6nQ/pP1R1b2/Pk4r1/1P1rP3/K1RP1N2/Np5B/1B2q3 w - - 0 1)
Vacca, Luciano
Best Problems, 2014
#2
13 + 8
SOLUTION
- SOUND
- Sets
- 1...Qxc3+
- 2.Sxc3#
- 1...Rxd3
- 2.Bxd3#
- 1...Rc4
- 2.dxc4#
- 1...Rg1
- 2.Rc5#
- 1...Rg2
- 2.Rc5#
- 1...Rg3
- 2.Rc5#
- 1...Rg4
- 2.Rc5#
- 1...Rc5
- 2.Rxc5#
- 1...Re5
- 2.Sxd4#
- 1...Rg6
- 2.Rc5#
- 1...Be5
- 2.Rc5#
- 1...Be7
- 2.Sxd4#
- 1...Bd8
- 2.Sxd4#
- 1...Sf5
- 2.Rc5#
- 2.Qd7#
- 1...Sh5
- 2.Qd7#
- 1...Se6
- 2.Qd7#
- 1...Se8
- 2.Qd7#
- 1...Qxc3+
- Tries
- 1.Sxg5?
- threat
- 2.Rc5#
- 1...Qxc3+
- 2.Sxc3#
- 1...Rxd3
- 2.Bxd3#
- 1...Rxb4
- 2.Rd5#
- 1...Rc4
- 2.dxc4#
- 1...Rd5
- 2.Rxd5#
- 1...Se6
- 2.Qd7#
- 1...Qc1!
- threat
- 1.Qf5+?
- 1...Rd5
- 2.Rxd5#
- 2.Qd7#
- 1...Be5
- 2.Sxd4#
- 2.Rc5#
- 2.Qd7#
- 1...Sxf5
- 2.Rc5#
- 1...Rxf5!
- 1...Rd5
- 1.e5?
- threat
- 2.Sxd4#
- 2.Rc5#
- 1...Qxc3+
- 2.Sxc3#
- 1...Rxd3
- 2.Bxd3#
- 2.Qxd3#
- 1...Rxb4
- 2.Rd5#
- 1...Rxd6
- 2.Rc5#
- 1...Rxe5
- 2.Sxd4#
- 1...Bxe5
- 2.Rc5#
- 1...Qc1
- 2.Sxd4#
- 1...Qf2
- 2.Rc5#
- 1...Qh4
- 2.Rc5#
- 1...Qg1
- 2.Rc5#
- 1...Qe3
- 2.Rc5#
- 1...Qe4
- 2.Rc5#
- 1...Rc4
- 2.dxc4#
- 1...Re4
- 2.Rc5#
- 2.Rd5#
- 1...Rf4
- 2.Rc5#
- 2.Rd5#
- 1...Rdg4
- 2.Rc5#
- 2.Rd5#
- 1...Rh4
- 2.Rc5#
- 2.Rd5#
- 1...Rd5
- 2.Rxd5#
- 1...Rgg4
- 2.Rc5#
- 1...Sf5
- 2.Rc5#
- 2.Qd7#
- 1...Se6
- 2.Qd7#
- 1...Qxe5!
- threat
- 1.Sxg5?
- Keys
- 1.Be5!
- threat
- 2.Sxd4#
- 2.Rc5#
- 1...Qxc3+
- 2.Sxc3#
- 1...Qxe4
- 2.Rc5#
- 1...Rxd3
- 2.Bxd3#
- 1...Rxb4
- 2.Rd5#
- 1...Rxe4
- 2.Rc5#
- 2.Rd5#
- 1...Rxd6
- 2.Rc5#
- 1...Rxe5
- 2.Sxd4#
- 1...Bxe5
- 2.Rc5#
- 1...Qc1
- 2.Sxd4#
- 1...Qf2
- 2.Rc5#
- 1...Qg1
- 2.Rc5#
- 1...Qe3
- 2.Rc5#
- 1...Rc4
- 2.dxc4#
- 1...Rd5
- 2.Rxd5#
- 1...Sf5
- 2.Rc5#
- 2.Qd7#
- 1...Se6
- 2.Qd7#
- threat
- 1.Be5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 10
- Sets
- Q(a);CHECK,XR(E)::S(B),XQ(a)
- R(c);OGATE,P_PINR(E),XP(F)::B(A),XR(c)
- R(c);OGATE::P(F),XR(c)
- R(e);N_GUARD::R1(E)
- R(e);N_GUARD::R1(E),XR(e)
- R(e);S_CUTB(g)::S(G),XR(c)
- B(g);S_CUTR(e)::R1(E)
- B(g);N_GUARD::S(G),XR(c)
- S(h);OGATE::QAB(M)
- Tries
- Try
- S(G);XR(e)
- Threat
- R1(E)
- Vars
- Q(a);CHECK,XR(E)::S(B),XQ(a)
- R(c);OGATE,P_PINR(E),XP(F)::B(A),XR(c)
- R(c);N_GUARD,XP(H)::R(L)
- R(c);OGATE::P(F),XR(c)
- R(c);N_GUARD::R(L),XR(c)
- S(h);OGATE::QAB(M)
- Refutation
- Q(a);
- Try
- Q(M);CHECK
- Vars
- S(h);XQ(M)::R1(E)
- Refutation
- R(e);XQ(M)
- Try
- P(I);
- Threat
- DUALS(2)
- Vars
- Q(a);CHECK,XR(E)::S(B),XQ(a)
- R(c);N_GUARD,XP(H)::R(L)
- R(c);XR(L)::R1(E)
- R(e);XP(I)::S(G),XR(c)
- B(g);XP(I)::R1(E)
- Q(a);::S(G),XR(c)
- Q(a);::R1(E)
- R(c);OGATE::P(F),XR(c)
- R(c);N_GUARD::R(L),XR(c)
- R(e);::R1(E)
- S(h);OGATE::QAB(M)
- Refutation
- Q(a);XP(I)
- Try
- Actual
- B(C);
- Threat
- DUALS(2)
- Vars
- Q(a);CHECK,XR(E)::S(B),XQ(a)
- Q(a);XP(I)::R1(E)
- R(c);OGATE,P_PINR(E),XP(F)::B(A),XR(c)
- R(c);N_GUARD,XP(H)::R(L)
- R(c);XR(L)::R1(E)
- R(e);XB(C)::S(G),XR(c)
- B(g);XB(C)::R1(E)
- Q(a);::S(G),XR(c)
- Q(a);::R1(E)
- R(c);OGATE::P(F),XR(c)
- R(c);N_GUARD::R(L),XR(c)
- S(h);OGATE::QAB(M)
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).