MESON Chess Problem Database
Problem Display
PID: 54296 (2RR4/8/Nr1p1pN1/1P1k1P1K/3b3Q/1P3p2/1p3p2/2r1q3 w - - 0 1)
Bartolovic, Hrvoje
The Problemist Supplement, 2004
#2
9 + 10
SOLUTION
- SOUND
- Sets
- 1...Qb4
- 2.Sxb4#
- 1...Qd1
- 2.Sb4#
- 1...Qf1
- 2.Sb4#
- 1...Qg1
- 2.Sb4#
- 1...Qh1
- 2.Sb4#
- 1...Qe2
- 2.Sb4#
- 1...Qe3
- 2.Sb4#
- 1...Qe4
- 2.Sb4#
- 1...Qe5
- 2.Sb4#
- 1...Qe6
- 2.Sb4#
- 1...Qe7
- 2.Sb4#
- 1...Qe8
- 2.Sb4#
- 1...Rc3
- 2.Sb4#
- 1...Rc4
- 2.bxc4#
- 1...Bc3
- 2.Rc5#
- 2.Qc4#
- 1...Bc5
- 2.Sc7#
- 1...Be5
- 2.Se7#
- 1...Qb4
- Tries
- 1.Rc4?
- threat
- 2.Sc7#
- 2.Rxd4#
- 2.Qxd4#
- 1...Rxb5
- 2.Sc7#
- 2.Qxd4#
- 1...Rxa6
- 2.Qxd4#
- 1...Qd2
- 2.Sc7#
- 1...Qc3
- 2.Sc7#
- 1...Qb4
- 2.Sxb4#
- 2.Sc7#
- 2.Qxd4#
- 1...Qd1
- 2.Sb4#
- 2.Sc7#
- 1...Qh1
- 2.Sb4#
- 2.Sc7#
- 2.Rxd4#
- 1...Qe3
- 2.Sb4#
- 2.Sc7#
- 1...Qe4
- 2.Sb4#
- 2.Sc7#
- 1...Qe5
- 2.Sb4#
- 2.Sc7#
- 1...Qe7
- 2.Sb4#
- 2.Rxd4#
- 2.Qxd4#
- 1...Rd1
- 2.Sc7#
- 1...Rc6
- 2.Rxd4#
- 2.Qxd4#
- 1...Rb7
- 2.Rxd4#
- 2.Qxd4#
- 1...Bc3
- 2.Sc7#
- 2.Rc5#
- 1...Be3
- 2.Sc7#
- 2.Qe4#
- 1...Bc5
- 2.Sc7#
- 1...Be5
- 2.Sc7#
- 2.Se7#
- 1...Rxc4!
- threat
- 1.Rc5+?
- 1...Bxc5
- 2.Sc7#
- 1...Rxc5!
- 1...Bxc5
- 1.Rxd6+?
- 1...Kxd6
- 2.Rd8#
- 2.Qxd4#
- 1...Rxd6!
- 1...Kxd6
- 1.Qe4+?
- 1...Qxe4
- 2.Sb4#
- 1...Kxe4!
- 1...Qxe4
- 1.Rc4?
- Keys
- 1.Re8!
- threat
- 2.Sf4#
- 1...Qxe8
- 2.Sb4#
- 1...Qd2
- 2.Qe4#
- 1...Qe3
- 2.Sb4#
- 1...Qe4
- 2.Sb4#
- 2.Qxe4#
- 1...Qe5
- 2.Sb4#
- 1...Qe6
- 2.Sb4#
- 1...Qe7
- 2.Sb4#
- 1...Bc3
- 2.Qc4#
- 1...Be3
- 2.Qe4#
- 1...Bc5
- 2.Sc7#
- 1...Be5
- 2.Se7#
- threat
- 1.Re8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 9
- Sets
- Q(b);N_GUARD::S(F),XQ(b)
- Q(b);N_GUARD::S(F)
- Q(b);N_GUARD,P_PINQ(B)::S(F)
- Q(b);N_GUARD,P_PINP(D)::S(F)
- Q(b);N_GUARD,P_PINS(G)::S(F)
- R(a);S_CUTQ(b)::S(F)
- R(a);OGATE::P(A),XR(a)
- B(f);SBLOCK,S_CUTR(a)::S(F)
- B(f);SBLOCK,S_CUTQ(b)::S(G)
- Tries
- Try
- R(H);
- Threat
- DUALS(3)
- Vars
- R(h);XS(F)::QAR1(B),XB(f)
- Q(b);::S(F)
- R(a);::S(F)
- B(f);::S(F)
- Refutation
- R(a);XR(H)
- Try
- R(H);CHECK
- Vars
- B(f);SBLOCK,XR(H)::S(F)
- Refutation
- R(a);XR(H)
- Try
- R(I);CHECK,XP(i)
- Refutation
- R(h);XR(I)
- Try
- Q(B);CHECK
- Vars
- Q(b);SBLOCK,XQ(B)::S(F)
- Refutation
- K(g);N_SPINP(i),S_FLIGHT,XQ(B)
- Try
- Actual
- R(I);N_PINP(i)
- Threat
- S(G)
- Vars
- Q(b);N_GUARD,P_PINS(G),XR(I)::S(F)
- Q(b);N_GUARD::QAB1(B)
- Q(b);N_GUARD::S(F)
- Q(b);N_GUARD,P_PINP(D)::S(F)
- B(f);OGATE::QAB1(B)
- B(f);S_CUTQ(b)::QAB1(B)
- B(f);SBLOCK,S_CUTR(a)::S(F)
- B(f);SBLOCK,S_CUTQ(b)::S(G)
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).