MESON Chess Problem Database
Problem Display
PID: 132092 (8/8/3Nn1p1/5p2/2Q2P2/r3kp2/ppp1N2R/rbb1BB1K w - - 0 1)
Barron, Philip
The Field, 1955
(First published on Thu Oct 6 1955)
#2
8 + 12
SOLUTION
- SOUND
- Sets
- 1...Rb3
- 2.Qxb3#
- 1...Rc3
- 2.Qxc3#
- 1...Rd3
- 2.Qxe6#
- 1...Ra4
- 2.Qb3#
- 2.Qc3#
- 1...Ra5
- 2.Qb3#
- 2.Qc3#
- 1...Ra6
- 2.Qb3#
- 2.Qc3#
- 1...Ra7
- 2.Qb3#
- 2.Qc3#
- 1...Ra8
- 2.Qb3#
- 2.Qc3#
- 1...Bd2
- 2.Bf2#
- 1...Sd4
- 2.Qxd4#
- 1...Sxf4
- 2.Qd4#
- 1...Sc5
- 2.Qd4#
- 1...Sg5
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sg7
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...Sf8
- 2.Qd4#
- 1...fxe2
- 2.Rh3#
- 1...f2
- 2.Rh3#
- 1...g5
- 2.Sxf5#
- 1...Rb3
- Tries
- 1.Kg1?
- 1...Sxf4
- 2.Qd4#
- 1...fxe2
- 2.Rh3#
- 1...Rb3
- 2.Qxb3#
- 1...Rc3
- 2.Qxc3#
- 1...Rd3
- 2.Qxe6#
- 1...Ra4
- 2.Qb3#
- 2.Qc3#
- 1...Ra5
- 2.Qb3#
- 2.Qc3#
- 1...Ra6
- 2.Qb3#
- 2.Qc3#
- 1...Ra7
- 2.Qb3#
- 2.Qc3#
- 1...Ra8
- 2.Qb3#
- 2.Qc3#
- 1...Bd2
- 2.Bf2#
- 1...Sd4
- 2.Qxd4#
- 1...Sc5
- 2.Qd4#
- 1...Sg5
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sg7
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...Sf8
- 2.Qd4#
- 1...g5
- 2.Sxf5#
- 1...f2+!
- 1...Sxf4
- 1.Rg2?
- 1...Sxf4
- 2.Qd4#
- 1...fxe2
- 2.Rg3#
- 1...f2
- 2.Rg3#
- 1...Rb3
- 2.Qxb3#
- 1...Rc3
- 2.Qxc3#
- 1...Rd3
- 2.Qxe6#
- 1...Ra4
- 2.Qb3#
- 2.Qc3#
- 1...Ra5
- 2.Qb3#
- 2.Qc3#
- 1...Ra6
- 2.Qb3#
- 2.Qc3#
- 1...Ra7
- 2.Qb3#
- 2.Qc3#
- 1...Ra8
- 2.Qb3#
- 2.Qc3#
- 1...Bd2
- 2.Bf2#
- 1...Sd4
- 2.Qxd4#
- 1...Sc5
- 2.Qd4#
- 1...Sg5
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sg7
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...Sf8
- 2.Qd4#
- 1...g5
- 2.Sxf5#
- 1...fxg2+!
- 1...Sxf4
- 1.Rh3?
- 1...Sxf4
- 2.Qd4#
- 1...Rb3
- 2.Qxb3#
- 1...Rc3
- 2.Qxc3#
- 1...Rd3
- 2.Qxe6#
- 1...Ra4
- 2.Qb3#
- 2.Qc3#
- 1...Ra5
- 2.Qb3#
- 2.Qc3#
- 1...Ra6
- 2.Qb3#
- 2.Qc3#
- 1...Ra7
- 2.Qb3#
- 2.Qc3#
- 1...Ra8
- 2.Qb3#
- 2.Qc3#
- 1...Sd4
- 2.Qxd4#
- 1...Sc5
- 2.Qd4#
- 1...Sg5
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sg7
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...Sf8
- 2.Qd4#
- 1...g5
- 2.Sxf5#
- 1...Bd2!
- 1...Sxf4
- 1.Rh4?
- 1...Sxf4
- 2.Qd4#
- 1...fxe2
- 2.Rh3#
- 1...f2
- 2.Rh3#
- 1...Rb3
- 2.Qxb3#
- 1...Rc3
- 2.Qxc3#
- 1...Rd3
- 2.Qxe6#
- 1...Ra4
- 2.Qb3#
- 2.Qc3#
- 1...Ra5
- 2.Qb3#
- 2.Qc3#
- 1...Ra6
- 2.Qb3#
- 2.Qc3#
- 1...Ra7
- 2.Qb3#
- 2.Qc3#
- 1...Ra8
- 2.Qb3#
- 2.Qc3#
- 1...Sd4
- 2.Qxd4#
- 1...Sc5
- 2.Qd4#
- 1...Sg5
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sg7
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...Sf8
- 2.Qd4#
- 1...g5
- 2.Sxf5#
- 1...Bd2!
- 1...Sxf4
- 1.Rh5?
- 1...Sxf4
- 2.Qd4#
- 1...fxe2
- 2.Rh3#
- 1...gxh5
- 2.Sxf5#
- 1...f2
- 2.Rh3#
- 1...Rb3
- 2.Qxb3#
- 1...Rc3
- 2.Qxc3#
- 1...Rd3
- 2.Qxe6#
- 1...Ra4
- 2.Qb3#
- 2.Qc3#
- 1...Ra5
- 2.Qb3#
- 2.Qc3#
- 1...Ra6
- 2.Qb3#
- 2.Qc3#
- 1...Ra7
- 2.Qb3#
- 2.Qc3#
- 1...Ra8
- 2.Qb3#
- 2.Qc3#
- 1...Sd4
- 2.Qxd4#
- 1...Sc5
- 2.Qd4#
- 1...Sg5
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sg7
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...Sf8
- 2.Qd4#
- 1...g5
- 2.Sxf5#
- 1...Bd2!
- 1...Sxf4
- 1.Rh6?
- 1...Sxf4
- 2.Qd4#
- 1...fxe2
- 2.Rh3#
- 1...f2
- 2.Rh3#
- 1...Rb3
- 2.Qxb3#
- 1...Rc3
- 2.Qxc3#
- 1...Rd3
- 2.Qxe6#
- 1...Ra4
- 2.Qb3#
- 2.Qc3#
- 1...Ra5
- 2.Qb3#
- 2.Qc3#
- 1...Ra6
- 2.Qb3#
- 2.Qc3#
- 1...Ra7
- 2.Qb3#
- 2.Qc3#
- 1...Ra8
- 2.Qb3#
- 2.Qc3#
- 1...Sd4
- 2.Qxd4#
- 1...Sc5
- 2.Qd4#
- 1...Sg5
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sg7
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...Sf8
- 2.Qd4#
- 1...g5
- 2.Sxf5#
- 2.Rxe6#
- 1...Bd2!
- 1...Sxf4
- 1.Rh7?
- 1...Sxf4
- 2.Qd4#
- 1...fxe2
- 2.Rh3#
- 1...f2
- 2.Rh3#
- 1...Rb3
- 2.Qxb3#
- 1...Rc3
- 2.Qxc3#
- 1...Rd3
- 2.Qxe6#
- 1...Ra4
- 2.Qb3#
- 2.Qc3#
- 1...Ra5
- 2.Qb3#
- 2.Qc3#
- 1...Ra6
- 2.Qb3#
- 2.Qc3#
- 1...Ra7
- 2.Qb3#
- 2.Qc3#
- 1...Ra8
- 2.Qb3#
- 2.Qc3#
- 1...Sd4
- 2.Qxd4#
- 1...Sc5
- 2.Qd4#
- 1...Sg5
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sg7
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...Sf8
- 2.Qd4#
- 1...g5
- 2.Sxf5#
- 1...Bd2!
- 1...Sxf4
- 1.Rh8?
- 1...Sxf4
- 2.Qd4#
- 1...fxe2
- 2.Rh3#
- 1...f2
- 2.Rh3#
- 1...Rb3
- 2.Qxb3#
- 1...Rc3
- 2.Qxc3#
- 1...Rd3
- 2.Qxe6#
- 1...Ra4
- 2.Qb3#
- 2.Qc3#
- 1...Ra5
- 2.Qb3#
- 2.Qc3#
- 1...Ra6
- 2.Qb3#
- 2.Qc3#
- 1...Ra7
- 2.Qb3#
- 2.Qc3#
- 1...Ra8
- 2.Qb3#
- 2.Qc3#
- 1...Sd4
- 2.Qxd4#
- 1...Sc5
- 2.Qd4#
- 1...Sg5
- 2.Qd4#
- 1...Sc7
- 2.Qd4#
- 1...Sg7
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...Sf8
- 2.Qd4#
- 1...g5
- 2.Sxf5#
- 1...Bd2!
- 1...Sxf4
- 1.Qd5?
- threat
- 2.Sc4#
- 2.Bf2#
- 1...Sd4
- 2.Qxd4#
- 1...Rc3
- 2.Bf2#
- 1...Rd3
- 2.Sc4#
- 2.Qxe6#
- 2.Qe5#
- 1...Ra4
- 2.Bf2#
- 2.Qb3#
- 1...f2
- 2.Sc4#
- 2.Bxf2#
- 2.Rh3#
- 1...fxe2!
- threat
- 1.Qc5+?
- 1...Kd3
- 2.Sxc1#
- 2.Sg1#
- 2.Sc3#
- 2.Sg3#
- 2.Qxa3#
- 1...Sd4
- 2.Qxd4#
- 1...Sxc5!
- 1...Kd3
- 1.Kg1?
- Keys
- 1.Qb4!
- threat
- 2.Qxa3#
- 1...Kd3
- 2.Qxa3#
- 1...Sxf4
- 2.Qd4#
- 1...fxe2
- 2.Rh3#
- 1...Bd2
- 2.Qxd2#
- 1...Rb3
- 2.Qxb3#
- 1...Rc3
- 2.Qxc3#
- 1...Rd3
- 2.Bf2#
- 1...Ra4
- 2.Qc3#
- 2.Qb3#
- 1...Ra5
- 2.Qc3#
- 2.Qb3#
- 1...Ra6
- 2.Qc3#
- 2.Qb3#
- 1...Ra7
- 2.Qc3#
- 2.Qb3#
- 1...Ra8
- 2.Qc3#
- 2.Qb3#
- 1...Sd4
- 2.Qxd4#
- 1...Sc5
- 2.Qd4#
- threat
- 1.Qb4!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- R(g);N_GUARD::QAR(F),XR(g)
- R(g);N_GUARD::QAR2(F),XR(g)
- R(g);SBLOCK::QAR(F),XS(k)
- B(c);SBLOCK::B(A)
- S(k);N_GUARD::QAB1(F),XS(k)
- S(k);N_GUARD,XP(G)::QAB1(F)
- S(k);N_GUARD::QAB1(F)
- P(i);OGATEB,XS(D)::R(E)
- P(i);OGATEB::R(E)
- P(l);N_GUARD::S(H),XP(j)
- Tries
- Try
- K(C);P-FLIGHT
- Vars
- S(k);N_GUARD,XP(G)::QAB1(F)
- P(i);OGATEB,XS(D)::R(E)
- R(g);N_GUARD::QAR(F),XR(g)
- R(g);N_GUARD::QAR2(F),XR(g)
- R(g);SBLOCK::QAR(F),XS(k)
- B(c);SBLOCK::B(A)
- S(k);N_GUARD::QAB1(F),XS(k)
- S(k);N_GUARD::QAB1(F)
- P(l);N_GUARD::S(H),XP(j)
- Refutation
- P(i);CHECK
- Try
- R(E);
- Vars
- S(k);N_GUARD,XP(G)::QAB1(F)
- P(i);OGATEB,XS(D)::R(E)
- P(i);OGATEB::R(E)
- R(g);N_GUARD::QAR(F),XR(g)
- R(g);N_GUARD::QAR2(F),XR(g)
- R(g);SBLOCK::QAR(F),XS(k)
- B(c);SBLOCK::B(A)
- S(k);N_GUARD::QAB1(F),XS(k)
- S(k);N_GUARD::QAB1(F)
- P(l);N_GUARD::S(H),XP(j)
- Refutation
- P(i);CHECK,XR(E)
- Try
- R(E);P_PINP(i)
- Vars
- S(k);N_GUARD,XP(G)::QAB1(F)
- R(g);N_GUARD::QAR(F),XR(g)
- R(g);N_GUARD::QAR2(F),XR(g)
- R(g);SBLOCK::QAR(F),XS(k)
- S(k);N_GUARD::QAB1(F),XS(k)
- S(k);N_GUARD::QAB1(F)
- P(l);N_GUARD::S(H),XP(j)
- Refutation
- B(c);
- Try
- R(E);
- Vars
- S(k);N_GUARD,XP(G)::QAB1(F)
- P(i);OGATEB,XS(D)::R(E)
- P(i);OGATEB::R(E)
- R(g);N_GUARD::QAR(F),XR(g)
- R(g);N_GUARD::QAR2(F),XR(g)
- R(g);SBLOCK::QAR(F),XS(k)
- S(k);N_GUARD::QAB1(F),XS(k)
- S(k);N_GUARD::QAB1(F)
- P(l);N_GUARD::S(H),XP(j)
- Refutation
- B(c);
- Try
- R(E);
- Vars
- S(k);N_GUARD,XP(G)::QAB1(F)
- P(i);OGATEB,XS(D)::R(E)
- P(l);N_GUARD,XR(E)::S(H),XP(j)
- P(i);OGATEB::R(E)
- R(g);N_GUARD::QAR(F),XR(g)
- R(g);N_GUARD::QAR2(F),XR(g)
- R(g);SBLOCK::QAR(F),XS(k)
- S(k);N_GUARD::QAB1(F),XS(k)
- S(k);N_GUARD::QAB1(F)
- P(l);N_GUARD::S(H),XP(j)
- Refutation
- B(c);
- Try
- R(E);
- Vars
- S(k);N_GUARD,XP(G)::QAB1(F)
- P(i);OGATEB,XS(D)::R(E)
- P(i);OGATEB::R(E)
- R(g);N_GUARD::QAR(F),XR(g)
- R(g);N_GUARD::QAR2(F),XR(g)
- R(g);SBLOCK::QAR(F),XS(k)
- S(k);N_GUARD::QAB1(F),XS(k)
- S(k);N_GUARD::QAB1(F)
- Refutation
- B(c);
- Try
- R(E);
- Vars
- S(k);N_GUARD,XP(G)::QAB1(F)
- P(i);OGATEB,XS(D)::R(E)
- P(i);OGATEB::R(E)
- R(g);N_GUARD::QAR(F),XR(g)
- R(g);N_GUARD::QAR2(F),XR(g)
- R(g);SBLOCK::QAR(F),XS(k)
- S(k);N_GUARD::QAB1(F),XS(k)
- S(k);N_GUARD::QAB1(F)
- P(l);N_GUARD::S(H),XP(j)
- Refutation
- B(c);
- Try
- R(E);
- Vars
- S(k);N_GUARD,XP(G)::QAB1(F)
- P(i);OGATEB,XS(D)::R(E)
- P(i);OGATEB::R(E)
- R(g);N_GUARD::QAR(F),XR(g)
- R(g);N_GUARD::QAR2(F),XR(g)
- R(g);SBLOCK::QAR(F),XS(k)
- S(k);N_GUARD::QAB1(F),XS(k)
- S(k);N_GUARD::QAB1(F)
- P(l);N_GUARD::S(H),XP(j)
- Refutation
- B(c);
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- S(k);N_GUARD::QAB1(F),XS(k)
- R(g);::B(A)
- Refutation
- P(i);XS(D)
- Try
- Q(F);CHECK
- Vars
- S(k);N_GUARD,P_SPINS(k)::QAB1(F),XS(k)
- Refutation
- S(k);XQ(F)
- Try
- Actual
- Q(F);
- Threat
- QAR(F),XR(g)
- Vars
- K(h);P-FLIGHT::QAR(F),XR(g)
- S(k);N_GUARD,XP(G)::QAB1(F)
- P(i);OGATEB,XS(D)::R(E)
- B(c);N_GUARD::QAB1(F),XB(c)
- R(g);N_GUARD::QAR(F),XR(g)
- R(g);N_GUARD::QAR2(F),XR(g)
- R(g);SBLOCK::B(A)
- S(k);N_GUARD::QAB1(F),XS(k)
- S(k);N_GUARD::QAB1(F)
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).