MESON Chess Problem Database
Problem Display
PID: 239104 (2B2rqb/1p2N3/1P6/1QR2pR1/2rpk3/2p3pN/2P1P1P1/5KB1 w - - 0 1)
Hicks, Geoffrey K
The Problemist, 1988
#2
12 + 10
SOLUTION
- SOUND
- Sets
- 1...Qh7
- 2.Bxb7#
- 1...Qxg5
- 2.Bxb7#
- 1...Qg7
- 2.Bxb7#
- 1...Ra4
- 2.Qd3#
- 1...Rb4
- 2.Qd3#
- 1...Rf6
- 2.Re5#
- 1...Rf7
- 2.Bxb7#
- 1...Rd8
- 2.Bxf5#
- 1...Re8
- 2.Bxf5#
- 1...Be5
- 2.Rxe5#
- 1...Bf6
- 2.Bxf5#
- 1...d3
- 2.cxd3#
- 2.exd3#
- 1...Qh7
- Tries
- 1.Rgxf5?
- 1...Rxf5+
- 2.Bxf5#
- 1...Rxc5
- 2.Qd3#
- 1...Rxc8
- 2.Rf4#
- 1...Qd5
- 2.Sg5#
- 1...Qe6
- 2.Sg5#
- 1...Qf7
- 2.Sg5#
- 1...Qh7
- 2.Sg5#
- 2.Bxb7#
- 1...Qg4
- 2.Bxb7#
- 1...Qg5
- 2.Sxg5#
- 2.Bxb7#
- 1...Qg7
- 2.Bxb7#
- 1...Ra4
- 2.Qd3#
- 1...Rb4
- 2.Qd3#
- 1...Rf6
- 2.Re5#
- 1...Rf7
- 2.Bxb7#
- 1...Rd8
- 2.Rf4#
- 1...Re8
- 2.Rf4#
- 1...Be5
- 2.Rxe5#
- 1...Bf6
- 2.Rf4#
- 1...Bg7
- 2.Sg5#
- 1...d3
- 2.cxd3#
- 2.exd3#
- 1...Qg6!
- 1...Rxf5+
- 1.Qxc4?
- threat
- 2.Qd3#
- 1...Qd5
- 2.Qxd5#
- 1...Qxc4!
- threat
- 1.Qc6+?
- 1...Qd5
- 2.Qxd5#
- 1...bxc6!
- 1...Qd5
- 1.Rgxf5?
- Keys
- 1.Rcxf5!
- 1...Rxf5+
- 2.Bxf5#
- 2.Qxf5#
- 1...Qxg5
- 2.Sxg5#
- 2.Qd5#
- 1...Rcxc8
- 2.Qd3#
- 1...Rfxc8
- 2.Rf4#
- 1...Qd5
- 2.Rg4#
- 2.Qxd5#
- 1...Qe6
- 2.Rg4#
- 1...Qf7
- 2.Rg4#
- 1...Qh7
- 2.Rg4#
- 2.Qd5#
- 1...Qg6
- 2.Qd5#
- 1...Qg7
- 2.Qd5#
- 1...Ra4
- 2.Qd3#
- 1...Rb4
- 2.Qd3#
- 1...Rc5
- 2.Qd3#
- 1...Rc6
- 2.Qd3#
- 1...Rc7
- 2.Qd3#
- 1...Rf6
- 2.Qe5#
- 1...Rf7
- 2.Qd5#
- 1...Rd8
- 2.Rf4#
- 1...Re8
- 2.Rf4#
- 1...Be5
- 2.Qxe5#
- 1...Bf6
- 2.Rf4#
- 1...Bg7
- 2.Rg4#
- 1...d3
- 2.cxd3#
- 2.exd3#
- 1...Rxf5+
- 1.Rcxf5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 7
- ADDED MATES = 9
- REMOVED MATES = 2
- Sets
- Q(i);N_GUARD::B(L),XP(g)
- Q(i);N_GUARD,XR(I)::B(L),XP(g)
- R(c);OGATE::QAB1(G)
- R(h);S_CUTB(j)::R1(H)
- R(h);S_CUTQ(i)::B(L),XP(g)
- R(h);N_GUARD::B(L),XP(f)
- B(j);N_GUARD::R1(H),XB(j)
- B(j);S_CUTR(h)::B(L),XP(f)
- Tries
- Try
- R(I);P_SPINR(I),XP(f)
- Vars
- R(h);CHECK,OGATE,XR(I)::B(L),XR(h)
- R(c);OGATE,XR(H)::QAB1(G)
- R(h);N_GUARD,N_PINR(I),XB(L)::R1(I)
- Q(i);N_GUARD::S(F)
- Q(i);N_GUARD::B(L),XP(g)
- R(c);OGATE::QAB1(G)
- R(h);S_CUTB(j)::R1(H)
- R(h);S_CUTQ(i)::B(L),XP(g)
- R(h);N_GUARD,N_PINR(I)::R1(I)
- B(j);N_GUARD::R1(H),XB(j)
- B(j);N_PINR(I),S_CUTR(h)::R1(I)
- B(j);S_CUTQ(i)::S(F)
- Refutation
- Q(i);
- Try
- Q(G);P_PINP(d),XR(c)
- Threat
- QAB1(G)
- Vars
- Q(i);N_GUARD::QAB1(G),XQ(i)
- Refutation
- Q(i);N_SPINP(d),P_PINP(D),XQ(G)
- Try
- Q(G);CHECK
- Vars
- Q(i);N_GUARD,P_SPINQ(i)::QAB1(G),XQ(i)
- Refutation
- P(g);XQ(G)
- Try
- Actual
- R(H);P_SPINR(H),XP(f)
- Vars
- R(c);OGATE,XB(L)::QAB1(G)
- R(h);N_GUARD,N_PINR(H),XB(L)::R1(H)
- Q(i);N_GUARD::R(I)
- Q(i);N_GUARD::QAB1(G)
- R(c);OGATE::QAB1(G)
- R(h);S_CUTB(j)::QAR1(G)
- R(h);S_CUTQ(i)::QAB1(G)
- R(h);N_GUARD,N_PINR(H)::R1(H)
- B(j);N_GUARD::QAR1(G),XB(j)
- B(j);N_PINR(H),S_CUTR(h)::R1(H)
- B(j);S_CUTQ(i)::R(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).