MESON Chess Problem Database
Problem Display
PID: 39677 (2KnN2q/3QRb2/2p4r/b1R1p3/2p1k1P1/r5P1/B3PP2/2B2Nn1 w - - 0 1)
Oltean, Gligor
The Problemist, 2001
#2
12 + 11
SOLUTION
- SOUND
- Sets
- 1...Qh7
- 2.Rcxe5#
- 2.Rexe5#
- 1...Qxe8
- 2.Rcxe5#
- 1...Qf8
- 2.Rcxe5#
- 2.Rexe5#
- 1...Qg8
- 2.Rcxe5#
- 2.Rexe5#
- 1...Rc3
- 2.Sd2#
- 1...Rxg3
- 2.Sxg3#
- 1...Ra4
- 2.Bb1#
- 1...Re6
- 2.Rxc4#
- 1...Rf6
- 2.Rcxe5#
- 2.Rexe5#
- 1...Bd2
- 2.Sxd2#
- 1...Bc3
- 2.Bb1#
- 1...Bb6
- 2.Sd2#
- 1...Bc7
- 2.Sd2#
- 1...Bh5
- 2.Rxc4#
- 1...Bg6
- 2.Rxc4#
- 1...Bxe8
- 2.Rxc4#
- 1...c3
- 2.Qd3#
- 1...Qh7
- Tries
- 1.Sf6+?
- 1...Rxf6
- 2.Rcxe5#
- 2.Rexe5#
- 1...Qxf6!
- 1...Rxf6
- 1.Be3?
- threat
- 2.Qf5#
- 2.Qd4#
- 1...Sxe2
- 2.Qf5#
- 1...Qf6
- 2.Qd4#
- 1...Qh7
- 2.Rcxe5#
- 2.Rexe5#
- 2.Qd4#
- 1...Rd3
- 2.Qf5#
- 1...Rh5
- 2.Sd6#
- 2.Qd4#
- 1...Rd6
- 2.Sxd6#
- 2.Qf5#
- 1...Re6
- 2.Rxc4#
- 1...Rf6
- 2.Rcxe5#
- 2.Rexe5#
- 2.Qd4#
- 1...Bc3
- 2.Bb1#
- 2.Qf5#
- 1...Bd5
- 2.Qf5#
- 1...Be6
- 2.Sd6#
- 1...Bg6
- 2.Sd6#
- 2.Rxc4#
- 2.Qd4#
- 1...Sf3
- 2.Qf5#
- 1...Se6
- 2.Qxc6#
- 1...Rxe3!
- threat
- 1.Sf6+?
- Keys
- 1.Bb2!
- threat
- 2.Qf5#
- 2.Qd4#
- 1...Sxe2
- 2.Qf5#
- 1...Qf6
- 2.Qd4#
- 1...Qh7
- 2.Rcxe5#
- 2.Rexe5#
- 2.Qd4#
- 1...Rc3
- 2.Sd2#
- 1...Rd3
- 2.Qf5#
- 1...Rf3
- 2.Qd4#
- 1...Rh5
- 2.Sd6#
- 2.Qd4#
- 1...Rd6
- 2.Sxd6#
- 2.Qf5#
- 1...Re6
- 2.Rxc4#
- 1...Rf6
- 2.Rcxe5#
- 2.Rexe5#
- 2.Qd4#
- 1...Bc3
- 2.Bb1#
- 1...Bd5
- 2.Qf5#
- 1...Be6
- 2.Sd6#
- 1...Bg6
- 2.Sd6#
- 2.Rxc4#
- 2.Qd4#
- 1...Sf3
- 2.Qf5#
- 1...Se6
- 2.Qxc6#
- 1...c3
- 2.Qd3#
- threat
- 1.Bb2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 9
- Sets
- Q(k);N_GUARD,XS(L)::R1(H),XP(f)
- R(b);S_CUTB(e)::S(B)
- R(b);XP(F)::S(B),XR(b)
- R(b);N_GUARD::B(C)
- R(h);N_SPINP(f),S_CUTB(i)::R(H),XP(c)
- B(e);N_GUARD::S(B),XB(e)
- B(e);S_CUTR(b)::B(C)
- B(e);N_GUARD::S(B)
- B(i);N_GUARD::R(H),XP(c)
- B(i);N_GUARD,XS(L)::R(H),XP(c)
- P(c);N_GUARD,S_CUTR(b)::QAB1(I)
- Tries
- Try
- S(L);CHECK
- Refutation
- Q(k);XS(L)
- Try
- B(A);
- Threat
- DUALS(2)
- Vars
- S(a);XP(D)::QAB1(I)
- Q(k);::QAR1(I)
- R(b);::QAB1(I)
- R(h);N_SPINP(f),S_CUTB(i)::R(H),XP(c)
- B(i);::QAB1(I)
- B(i);N_SPINP(f),P_PINQ(I),S_CUTR(h)::S(L)
- S(a);::QAB1(I)
- S(j);N_GUARD,N_SPINP(f),P_PINS(L),S_CUTB(i),S_CUTR(h)::QAB(I),XP(g)
- Refutation
- R(b);XB(A)
- Try
- Actual
- B(A);
- Threat
- DUALS(2)
- Vars
- S(a);XP(D)::QAB1(I)
- Q(k);::QAR1(I)
- R(b);S_CUTB(e)::S(B)
- R(b);::QAB1(I)
- R(b);::QAR1(I)
- R(h);N_SPINP(f),S_CUTB(i)::R(H),XP(c)
- B(e);S_CUTR(b)::B(C)
- B(i);::QAB1(I)
- B(i);N_SPINP(f),P_PINQ(I),S_CUTR(h)::S(L)
- S(a);::QAB1(I)
- S(j);N_GUARD,N_SPINP(f),P_PINS(L),S_CUTB(i),S_CUTR(h)::QAB(I),XP(g)
- P(c);N_GUARD,S_CUTR(b)::QAB1(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).