MESON Chess Problem Database
Problem Display
PID: 185987 (3KR3/5B2/n2P4/PR2PpP1/N2rk3/2Pnp1P1/2Q3pr/6N1 w - - 0 1)
White, Alain Campbell
Chess Amateur (The), 1916
#2
13 + 8
| 15 | British Chess Magazine | 1918 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Qxg2#
- 1...Rh3
- 2.Qxg2#
- 1...Rh4
- 2.Qxg2#
- 1...Rh5
- 2.Qxg2#
- 1...Rh6
- 2.Qxg2#
- 1...Rh7
- 2.Qxg2#
- 1...Rh8
- 2.Qxg2#
- 1...Rxa4
- 2.Bd5#
- 1...Rb4
- 2.Bd5#
- 1...Rc4
- 2.Bd5#
- 1...Rd5
- 2.Bxd5#
- 1...Rxd6+
- 2.exd6#
- 1...Sb4
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sc7
- 2.Sc5#
- 1...Sb8
- 2.Sc5#
- 1...e2
- 2.Qxe2#
- 1...f4
- 2.Bg6#
- 1...Rh1
- Tries
- 1.Kd7?
- 1...Rxd6+
- 2.exd6#
- 1...Sc5+
- 2.Sxc5#
- 1...Rxa4
- 2.Bd5#
- 1...e2
- 2.Qxe2#
- 1...f4
- 2.Bg6#
- 1...Rh1
- 2.Qxg2#
- 1...Rh3
- 2.Qxg2#
- 1...Rh4
- 2.Qxg2#
- 1...Rh5
- 2.Qxg2#
- 1...Rh6
- 2.Qxg2#
- 1...Rh7
- 2.Qxg2#
- 1...Rh8
- 2.Qxg2#
- 1...Rb4
- 2.Bd5#
- 1...Rc4
- 2.Bd5#
- 1...Rd5
- 2.Bxd5#
- 1...Sb4
- 2.Sc5#
- 1...Sc7
- 2.Sc5#
- 1...Sb8+!
- 1...Rxd6+
- 1.Kc8?
- 1...Rxa4
- 2.Bd5#
- 1...Rxd6
- 2.exd6#
- 1...e2
- 2.Qxe2#
- 1...f4
- 2.Bg6#
- 1...Rh1
- 2.Qxg2#
- 1...Rh3
- 2.Qxg2#
- 1...Rh4
- 2.Qxg2#
- 1...Rh5
- 2.Qxg2#
- 1...Rh6
- 2.Qxg2#
- 1...Rh7
- 2.Qxg2#
- 1...Rh8
- 2.Qxg2#
- 1...Rb4
- 2.Bd5#
- 1...Rd5
- 2.Bxd5#
- 1...Sb4
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sc7
- 2.Sc5#
- 1...Sb8
- 2.Sc5#
- 1...Rc4+!
- 1...Rxa4
- 1.Bg8?
- 1...Rxd6+
- 2.exd6#
- 1...Rxa4
- 2.Bd5#
- 1...e2
- 2.Qxe2#
- 1...Sb4
- 2.Sc5#
- 1...Rh1
- 2.Qxg2#
- 1...Rh3
- 2.Qxg2#
- 1...Rh4
- 2.Qxg2#
- 1...Rh5
- 2.Qxg2#
- 1...Rh6
- 2.Qxg2#
- 1...Rh7
- 2.Qxg2#
- 1...Rh8
- 2.Qxg2#
- 1...Rb4
- 2.Bd5#
- 1...Rc4
- 2.Bd5#
- 1...Rd5
- 2.Bxd5#
- 1...Sc5
- 2.Sxc5#
- 1...Sc7
- 2.Sc5#
- 1...Sb8
- 2.Sc5#
- 1...f4!
- 1...Rxd6+
- 1.Re7?
- 1...Rxd6+
- 2.exd6#
- 1...Rxa4
- 2.Bd5#
- 1...e2
- 2.Qxe2#
- 1...f4
- 2.Bg6#
- 1...Sb4
- 2.Sc5#
- 1...Rh1
- 2.Qxg2#
- 1...Rh3
- 2.Qxg2#
- 1...Rh4
- 2.Qxg2#
- 1...Rh5
- 2.Qxg2#
- 1...Rh6
- 2.Qxg2#
- 1...Rh7
- 2.Qxg2#
- 1...Rb4
- 2.Bd5#
- 1...Rc4
- 2.Bd5#
- 1...Rd5
- 2.Bxd5#
- 1...Sc5
- 2.Sxc5#
- 1...Sc7
- 2.Sc5#
- 1...Sb8
- 2.Sc5#
- 1...Rh8+!
- 1...Rxd6+
- 1.Qd1?
- threat
- 2.Qf3#
- 1...Sxe5
- 2.Rbxe5#
- 2.Rexe5#
- 2.Qxd4#
- 1...e2
- 2.Qxe2#
- 1...f4
- 2.Bg6#
- 1...Sc1
- 2.Qxd4#
- 1...Se1
- 2.Qxd4#
- 1...Sb2
- 2.Qxd4#
- 1...Sf2
- 2.Qxd4#
- 1...Sdb4
- 2.Qxd4#
- 1...Sf4
- 2.Qxd4#
- 1...Sdc5
- 2.Qxd4#
- 1...Rxd6+!
- threat
- 1.g6?
- 1...Rxd6+
- 2.exd6#
- 1...Rxa4
- 2.Bd5#
- 1...e2
- 2.Qxe2#
- 1...Sb4
- 2.Sc5#
- 1...Rh1
- 2.Qxg2#
- 1...Rh3
- 2.Qxg2#
- 1...Rh4
- 2.Qxg2#
- 1...Rh5
- 2.Qxg2#
- 1...Rh6
- 2.Qxg2#
- 1...Rh7
- 2.Qxg2#
- 1...Rh8
- 2.Qxg2#
- 1...Rb4
- 2.Bd5#
- 1...Rc4
- 2.Bd5#
- 1...Rd5
- 2.Bxd5#
- 1...Sc5
- 2.Sxc5#
- 1...Sc7
- 2.Sc5#
- 1...Sb8
- 2.Sc5#
- 1...f4!
- 1...Rxd6+
- 1.d7?
- 1...Rxa4
- 2.Bd5#
- 1...e2
- 2.Qxe2#
- 1...f4
- 2.Bg6#
- 1...Sb4
- 2.Sc5#
- 1...Rh1
- 2.Qxg2#
- 1...Rh3
- 2.Qxg2#
- 1...Rh4
- 2.Qxg2#
- 1...Rh5
- 2.Qxg2#
- 1...Rh6
- 2.Qxg2#
- 1...Rh7
- 2.Qxg2#
- 1...Rh8
- 2.Qxg2#
- 1...Rb4
- 2.Bd5#
- 1...Rc4
- 2.Bd5#
- 1...Rd5
- 2.Bxd5#
- 1...Rd6
- 2.exd6#
- 1...Sc5
- 2.Sxc5#
- 1...Sc7
- 2.Sc5#
- 1...Sb8
- 2.Sc5#
- 1...Rxd7+!
- 1...Rxa4
- 1.Kd7?
- Keys
- 1.Bh5!
- threat
- 2.Bf3#
- 1...Rxd6+
- 2.exd6#
- 1...Rxh5
- 2.Qxg2#
- 1...e2
- 2.Qxe2#
- 1...f4
- 2.Bg6#
- threat
- 1.Bh5!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 14
- Sets
- R(b);N_GUARD::QAB(B),XP(a)
- R(b);N_GUARD,P_PINR(M)::QAB(B),XP(a)
- R(e);N_GUARD,N_PINP(J),XS(E)::B(K)
- R(e);N_GUARD,N_PINP(J)::B(K)
- R(e);N_GUARD::B(K),XR(e)
- R(e);CHECK,OGATE,XP(J)::R(M)+P(H),XR(e)
- S(h);N_GUARD::S(E)
- S(h);N_GUARD::S(E),XS(h)
- P(d);OGATEB::QAR2(B),XP(d)
- P(g);OGATEB::B(K)
- Tries
- Try
- K(L);P-FLIGHT
- Vars
- R(e);CHECK,OGATE,XP(J)::R(M)+P(H),XR(e)
- S(h);CHECK,N_GUARD::S(E),XS(h)
- R(e);N_GUARD,N_PINP(J),XS(E)::B(K)
- P(d);OGATEB::QAR2(B),XP(d)
- P(g);OGATEB::B(K)
- R(b);N_GUARD::QAB(B),XP(a)
- R(b);N_GUARD,P_PINB(K)::QAB(B),XP(a)
- R(e);N_GUARD,N_PINP(J)::B(K)
- R(e);N_GUARD::B(K),XR(e)
- S(h);N_GUARD::S(E)
- Refutation
- S(h);CHECK
- Try
- K(L);N_SPINP(J),P-FLIGHT
- Vars
- R(e);N_GUARD,XS(E)::B(K)
- R(e);OGATE,XP(J)::R(M)+P(H),XR(e)
- P(d);OGATEB::QAR2(B),XP(d)
- P(g);OGATEB::B(K)
- R(b);N_GUARD::QAB(B),XP(a)
- R(b);N_GUARD,P_PINR(M)::QAB(B),XP(a)
- R(e);N_GUARD::B(K)
- R(e);N_GUARD::B(K),XR(e)
- S(h);N_GUARD::S(E)
- S(h);N_GUARD::S(E),XS(h)
- Refutation
- R(e);CHECK
- Try
- B(K);
- Vars
- R(e);CHECK,OGATE,XP(J)::R(M)+P(H),XR(e)
- R(e);N_GUARD,N_PINP(J),XS(E)::B(K)
- P(d);OGATEB::QAR2(B),XP(d)
- S(h);N_GUARD::S(E)
- R(b);N_GUARD::QAB(B),XP(a)
- R(e);N_GUARD,N_PINP(J)::B(K)
- R(e);N_GUARD::B(K),XR(e)
- S(h);N_GUARD::S(E),XS(h)
- Refutation
- P(g);
- Try
- R(M);
- Vars
- R(e);CHECK,OGATE,XP(J)::R(M)+P(H),XR(e)
- R(e);N_GUARD,N_PINP(J),XS(E)::B(K)
- P(d);OGATEB::QAR2(B),XP(d)
- P(g);OGATEB::B(K)
- S(h);N_GUARD::S(E)
- R(b);N_GUARD::QAB(B),XP(a)
- R(e);N_GUARD,N_PINP(J)::B(K)
- R(e);N_GUARD::B(K),XR(e)
- S(h);N_GUARD::S(E),XS(h)
- Refutation
- R(b);CHECK
- Try
- Q(B);N_PINS(c)
- Threat
- QAB1(B)
- Vars
- P(d);OGATEB::QAR2(B),XP(d)
- P(g);OGATEB::B(K)
- S(c);OGATE::QAR1(B),XR(e)
- Refutation
- R(e);CHECK,XP(J)
- Try
- P(I);
- Vars
- R(e);CHECK,OGATE,XP(J)::R(M)+P(H),XR(e)
- R(e);N_GUARD,N_PINP(J),XS(E)::B(K)
- P(d);OGATEB::QAR2(B),XP(d)
- S(h);N_GUARD::S(E)
- R(b);N_GUARD::QAB(B),XP(a)
- R(b);N_GUARD,P_PINR(M)::QAB(B),XP(a)
- R(e);N_GUARD,N_PINP(J)::B(K)
- R(e);N_GUARD::B(K),XR(e)
- S(h);N_GUARD::S(E),XS(h)
- Refutation
- P(g);
- Try
- P(J);
- Vars
- R(e);N_GUARD,N_PINP(J),XS(E)::B(K)
- P(d);OGATEB::QAR2(B),XP(d)
- P(g);OGATEB::B(K)
- S(h);N_GUARD::S(E)
- R(b);N_GUARD::QAB(B),XP(a)
- R(b);N_GUARD,P_PINR(M)::QAB(B),XP(a)
- R(e);N_GUARD,N_PINP(J)::B(K)
- R(e);N_GUARD::B(K),XR(e)
- R(e);OGATE::R(M)+P(H),XR(e)
- S(h);N_GUARD::S(E),XS(h)
- Refutation
- R(e);CHECK,XP(J)
- Try
- Actual
- B(K);
- Threat
- B(K)
- Vars
- R(e);CHECK,OGATE,XP(J)::R(M)+P(H),XR(e)
- R(b);N_GUARD,XB(K)::QAB(B),XP(a)
- P(d);OGATEB::QAR2(B),XP(d)
- P(g);OGATEB::B(K)
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).