MESON Chess Problem Database
Problem Display
PID: 251004 (3N3q/n2B1p1P/2pp4/R1nkb1Rp/3p1pNK/1P1Q4/2r1PP2/7b w - - 0 1)
Uris, Miguel
64 Shakhmatnoe obozrenie, 2021
#2
11 + 13
SOLUTION
- SOUND
- Sets
- 1...Qf6
- 2.Sxf6#
- 1...Qxh7
- 2.Sf6#
- 1...Qe8
- 2.Sf6#
- 1...Qf8
- 2.Sf6#
- 1...Qg8
- 2.Sf6#
- 1...Rc4
- 2.bxc4#
- 1...Bf3
- 2.Qxf3#
- 1...Sb5
- 2.Bxc6#
- 1...Sc8
- 2.Bxc6#
- 1...f3
- 2.Se3#
- 2.e4#
- 1...f5
- 2.Be6#
- 1...f6
- 2.Be6#
- 1...Qf6
- Tries
- 1.Sxc6?
- threat
- 2.Sb4#
- 2.Se7#
- 2.Qxd4#
- 1...Qf6
- 2.Sxf6#
- 2.Sb4#
- 2.Qxd4#
- 1...Qb8
- 2.Sf6#
- 2.Se7#
- 2.Qxd4#
- 1...Qd8
- 2.Sb4#
- 2.Qxd4#
- 1...Qe8
- 2.Sf6#
- 2.Sb4#
- 2.Qxd4#
- 1...Qf8
- 2.Sf6#
- 2.Sb4#
- 2.Qxd4#
- 1...Rd2
- 2.Sb4#
- 2.Se7#
- 1...Rc4
- 2.Se7#
- 2.bxc4#
- 1...Sb5
- 2.Sb4#
- 2.Se7#
- 1...Sc8
- 2.Sb4#
- 2.Qxd4#
- 1...f5
- 2.Sb4#
- 2.Se7#
- 1...Sxc6!
- threat
- 1.Se6?
- threat
- 2.Sxf4#
- 2.Sc7#
- 2.Qxd4#
- 1...Qf6
- 2.Sxf6#
- 2.Sc7#
- 2.Qxd4#
- 1...Qb8
- 2.Sf6#
- 2.Sxf4#
- 2.Qxd4#
- 1...Qc8
- 2.Sf6#
- 2.Sxf4#
- 2.Qxd4#
- 1...Qd8
- 2.Sxf4#
- 2.Qxd4#
- 1...Rd2
- 2.Sxf4#
- 2.Sc7#
- 1...Rc4
- 2.Sxf4#
- 2.Sc7#
- 2.bxc4#
- 1...Sb5
- 2.Sxf4#
- 1...f3
- 2.Se3#
- 2.Sf4#
- 2.Sc7#
- 2.Qxd4#
- 2.e4#
- 1...f5
- 2.Sc7#
- 1...fxe6!
- threat
- 1.Be8?
- threat
- 2.Bxf7#
- 1...Qxh7
- 2.Sf6#
- 1...Qxe8
- 2.Sf6#
- 1...Qf6
- 2.Sxf6#
- 1...Qf8
- 2.Sf6#
- 1...Qg8
- 2.Sf6#
- 1...Sb5
- 2.Bxc6#
- 1...f5
- 2.Bf7#
- 1...f6
- 2.Bf7#
- 1...Qg7!
- threat
- 1.Qc4+?
- 1...Ke4
- 2.Bf5#
- 1...Rxc4!
- 1...Ke4
- 1.e3?
- threat
- 2.Qxd4#
- 1...fxe3
- 2.Sxe3#
- 1...Rc4
- 2.bxc4#
- 1...Sb5
- 2.Bxc6#
- 1...f5
- 2.Be6#
- 1...Rd2!
- threat
- 1.e4+?
- 1...fxe4 ep
- 2.Sxe3#
- 1...Bxe4!
- 1...fxe4 ep
- 1.Sxc6?
- Keys
- 1.f3!
- threat
- 2.Qe4#
- 1...Qxh7
- 2.Sf6#
- 1...Rxe2
- 2.Qc4#
- 1...Bxf3
- 2.Qxf3#
- 1...Sb5
- 2.Bxc6#
- 1...f5
- 2.Be6#
- threat
- 1.f3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- Q(m);N_GUARD,P_PINR(H)::S(E),XQ(m)
- Q(m);N_GUARD,XP(J)::S(E)
- Q(m);N_GUARD::S(E)
- R(b);OGATE::P(C),XR(b)
- B(a);N_GUARD::QAB(D),XB(a)
- S(k);N_GUARD,N_SPINS(e)::B(I),XP(i)
- S(k);N_GUARD::B(I),XP(i)
- P(l);N_GUARD,N_SPINB(g)::B(I)
- P(l);N_GUARD::B(I)
- Tries
- Try
- S(K);XP(i)
- Threat
- DUALS(3)
- Refutation
- S(k);XS(K)
- Try
- S(K);
- Threat
- DUALS(3)
- Vars
- S(k);N_SPINS(e)::S(K),XP(d)
- P(l);N_SPINB(g)::S(K)
- Refutation
- P(l);XS(K)
- Try
- B(I);
- Threat
- B(I),XP(l)
- Vars
- Q(m);N_GUARD,XP(J)::S(E)
- Q(m);N_GUARD,XB(I)::S(E)
- Q(m);N_GUARD,P_PINR(H)::S(E),XQ(m)
- Q(m);N_GUARD::S(E)
- S(k);N_GUARD,N_SPINS(e)::B(I),XP(i)
- P(l);N_SPINB(g)::B(I)
- P(l);::B(I)
- Refutation
- Q(m);
- Try
- Q(D);CHECK,N_PINP(c)
- Vars
- K(f);N_SPINB(g),N_SPINS(e),P_SPINP(c),S_CUTR(b),S_FLIGHT::B(I)
- Refutation
- R(b);XQ(D)
- Try
- P(A);
- Threat
- QAR1(D),XP(c)
- Vars
- P(d);XP(A)::S(E),XP(d)
- R(b);OGATE::P(C),XR(b)
- S(k);N_GUARD,N_SPINS(e)::B(I),XP(i)
- P(l);N_GUARD,N_SPINB(g)::B(I)
- Refutation
- R(b);
- Try
- P(A);CHECK
- Vars
- P(d);EP,XP(A)::S(E),XP(d)
- Refutation
- B(a);XP(A)
- Try
- Actual
- P(B);
- Threat
- QAB1(D)
- Vars
- Q(m);N_GUARD,XP(J)::S(E)
- R(b);N_GUARD,XP(A)::QAB1(D)
- B(a);OGATE,XP(B)::QAB(D),XB(a)
- S(k);N_GUARD,N_SPINS(e)::B(I),XP(i)
- P(l);N_GUARD,N_SPINB(g)::B(I)
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).