MESON Chess Problem Database
Problem Display
PID: 200580 (1QbrrbB1/B7/8/2p1R2R/2Pkp1p1/K1p1p1N1/4P3/8 w - - 0 1)
Hicks, Geoffrey K
The Problemist, 1983
#2
9 + 10
SOLUTION
- SOUND
- Sets
- 1...Rd6
- 2.Bxc5#
- 1...Rd7
- 2.Sf5#
- 1...Rxe5
- 2.Qxe5#
- 1...Re7
- 2.Bxc5#
- 1...Bf5
- 2.Sxf5#
- 1...Ba6
- 2.Sf5#
- 1...Be6
- 2.Rxe4#
- 1...Bb7
- 2.Sf5#
- 1...Bh6
- 2.Bxc5#
- 1...Be7
- 2.Rxe4#
- 1...Bg7
- 2.Bxc5#
- 1...c2
- 2.Qb2#
- 1...Rd6
- Tries
- 1.Kb3?
- 1...Rxe5
- 2.Qxe5#
- 1...Rd5
- 2.Rxd5#
- 1...Rd6
- 2.Bxc5#
- 1...Rd7
- 2.Sf5#
- 1...Re6
- 2.Sf5#
- 1...Re7
- 2.Bxc5#
- 1...Bf5
- 2.Sxf5#
- 1...Ba6
- 2.Sf5#
- 1...Be6
- 2.Rxe4#
- 1...Bb7
- 2.Sf5#
- 1...Bd7
- 2.Rd5#
- 1...Bd6
- 2.Rd5#
- 1...Bh6
- 2.Bxc5#
- 1...Be7
- 2.Rxe4#
- 1...Bg7
- 2.Bxc5#
- 1...c2!
- 1...Rxe5
- 1.Be6?
- threat
- 2.Sf5#
- 2.Rxe4#
- 1...Bxe6
- 2.Rxe4#
- 1...Rd5
- 2.Rxe4#
- 1...c2
- 2.Qb2#
- 1...Rd6
- 2.Bxc5#
- 2.Rxe4#
- 1...Bb7
- 2.Sf5#
- 1...Bd6
- 2.Rxe4#
- 1...Rxe6!
- threat
- 1.Rd5+?
- 1...Kxc4
- 2.Qb3#
- 1...Rxd5!
- 1...Kxc4
- 1.Qd6+?
- 1...Rxd6
- 2.Bxc5#
- 1...Bxd6!
- 1...Rxd6
- 1.Qb1?
- threat
- 2.Qxe4#
- 2.Qd1#
- 1...Rxe5
- 2.Qd1#
- 1...Rd5
- 2.Qxe4#
- 1...Re6
- 2.Qxe4#
- 1...Be6
- 2.Rxe4#
- 2.Qxe4#
- 1...c2
- 2.Qa1#
- 2.Qb2#
- 1...Bb7
- 2.Qd1#
- 1...Bf5!
- threat
- 1.Kb3?
- Keys
- 1.Rxc5!
- 1...Bxc5+
- 2.Bxc5#
- 1...c2
- 2.Qb2#
- 1...Rd5
- 2.Rxd5#
- 1...Rd6
- 2.Rc6#
- 1...Rd7
- 2.Sf5#
- 1...Re5
- 2.Qxe5#
- 1...Re6
- 2.Sf5#
- 1...Re7
- 2.Rc7#
- 1...Bf5
- 2.Sxf5#
- 1...Ba6
- 2.Sf5#
- 1...Be6
- 2.Qe5#
- 1...Bb7
- 2.Sf5#
- 1...Bd7
- 2.Rd5#
- 1...Bd6
- 2.Rd5#
- 1...Bh6
- 2.Ra5#
- 2.Rb5#
- 2.Rce5#
- 2.Rcf5#
- 2.Rcg5#
- 2.Rc6#
- 2.Rc7#
- 2.Rxc8#
- 1...Be7
- 2.Qe5#
- 1...Bg7
- 2.Ra5#
- 2.Rb5#
- 2.Rce5#
- 2.Rcf5#
- 2.Rcg5#
- 2.Rc6#
- 2.Rc7#
- 2.Rxc8#
- 1...Bxc5+
- 1.Rxc5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 4
- ADDED MATES = 5
- REMOVED MATES = 2
- Sets
- R(h);S_CUTB(j)::B(G),XP(f)
- R(h);S_CUTB(g)::S(C)
- R(i);OGATE,XR(E)::QAB1(H),XR(i)
- R(i);S_CUTB(j)::B(G),XP(f)
- B(g);N_GUARD::S(C),XB(g)
- B(g);N_GUARD::S(C)
- B(g);S_CUTR(i)::R1(E),XP(d)
- B(j);N_GUARD::B(G),XP(f)
- B(j);S_CUTR(i)::R1(E),XP(d)
- P(a);OGATEB::QAB(H)
- Tries
- Try
- K(B);P-FLIGHT
- Vars
- R(i);OGATE,XR(E)::QAB1(H),XR(i)
- R(h);N_GUARD::R1(E),XR(h)
- R(h);S_CUTB(j)::B(G),XP(f)
- R(h);S_CUTB(g)::S(C)
- R(i);S_CUTB(g)::S(C)
- R(i);S_CUTB(j)::B(G),XP(f)
- B(g);N_GUARD::S(C),XB(g)
- B(g);N_GUARD::S(C)
- B(g);P_PINP(D),S_CUTR(i)::R1(E),XP(d)
- B(g);S_CUTR(h)::R1(E)
- B(j);S_CUTR(h)::R1(E)
- B(j);N_GUARD::B(G),XP(f)
- B(j);S_CUTR(i)::R1(E),XP(d)
- Refutation
- P(a);
- Try
- B(I);
- Threat
- DUALS(2)
- Vars
- B(g);XB(I)::R1(E),XP(d)
- R(h);::R1(E),XP(d)
- P(a);OGATEB::QAB(H)
- B(g);::S(C)
- B(j);::R1(E),XP(d)
- Refutation
- R(i);XB(I)
- Try
- R(E);CHECK
- Vars
- K(c);N_SPINP(f),P-FLIGHT,XP(D)::QAB1(H)
- Refutation
- R(h);XR(E)
- Try
- Q(H);CHECK
- Vars
- R(h);XQ(H)::B(G),XP(f)
- Refutation
- B(j);XQ(H)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- R(i);XR(E)::QAR(H)
- R(h);::QAR1(H),XP(d)
- R(i);::QAR1(H),XP(d)
- B(g);::QAR(H)
- Refutation
- B(g);
- Try
- Actual
- R(E);P_SPINR(E),XP(f)
- Vars
- B(j);CHECK,OGATE,P_SPINB(j),XR(E)::B(G),XB(j)
- P(a);OGATEB::QAB(H)
- R(h);N_GUARD::R1(F),XR(h)
- R(h);N_PINR(E)::B(G)+R(E)
- R(h);S_CUTB(g)::S(C)
- R(i);N_GUARD::QAB1(H),XR(i)
- R(i);S_CUTB(g)::S(C)
- R(i);N_PINR(E)::B(G)+R(E)
- B(g);N_GUARD::S(C),XB(g)
- B(g);N_GUARD::S(C)
- B(g);S_CUTR(i)::QAB1(H)
- B(g);S_CUTR(h)::R1(F)
- B(j);S_CUTR(h)::R1(F)
- B(j);S_CUTR(i)::QAB1(H)
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).