MESON Chess Problem Database
Problem Display
PID: 132675 (2r4b/1R4nQ/Ppk1p3/2p1Bp2/P4N1p/1pR1PKpP/1P2N1B1/3b4 w - - 0 1)
Robertson, Rev Nevill
The Field, 1958
(First published on Thu Jan 16 1958)
#2
13 + 12
SOLUTION
- SOUND
- Sets
- 1...Rc7
- 2.Rxc7#
- 1...Ra8
- 2.Rc7#
- 1...Rb8
- 2.Rc7#
- 1...Rd8
- 2.Rc7#
- 1...Re8
- 2.Rc7#
- 1...Rf8
- 2.Rc7#
- 1...Rg8
- 2.Rc7#
- 1...Bc2
- 2.Sd4#
- 1...Bxe2+
- 2.Kxe2#
- 1...Sh5
- 2.Qd7#
- 1...Se8
- 2.Qd7#
- 1...c4
- 2.Rxc4#
- 1...b5
- 2.axb5#
- 1...Rc7
- Tries
- 1.Sd3?
- threat
- 2.Kf4#
- 2.Sb4#
- 1...Bxe2+
- 2.Kxe2#
- 1...Kd5
- 2.Kf4#
- 1...Rd8
- 2.Sb4#
- 1...Sh5
- 2.Sb4#
- 2.Qd7#
- 1...c4
- 2.Kf4#
- 1...f4
- 2.Kxf4#
- 2.Sb4#
- 2.Qe4#
- 1...Rc7!
- threat
- 1.Rc1?
- 1...Bxe2+
- 2.Kxe2#
- 1...Rc7
- 2.Rxc7#
- 1...c4
- 2.Rxc4#
- 1...Ra8
- 2.Rc7#
- 1...Rb8
- 2.Rc7#
- 1...Rd8
- 2.Rc7#
- 1...Re8
- 2.Rc7#
- 1...Rf8
- 2.Rc7#
- 1...Rg8
- 2.Rc7#
- 1...Sh5
- 2.Qd7#
- 1...Se8
- 2.Qd7#
- 1...b5
- 2.axb5#
- 1...Bc2!
- 1...Bxe2+
- 1.Rd3?
- threat
- 2.Rd6#
- 1...Bxe2+
- 2.Kxe2#
- 1...Rd8
- 2.Rc7#
- 1...Se8
- 2.Qd7#
- 1...c4!
- threat
- 1.Ra7?
- 1...Bxe2+
- 2.Kxe2#
- 1...Rc7
- 2.Rxc7#
- 1...c4
- 2.Rxc4#
- 1...Ra8
- 2.Rc7#
- 1...Rb8
- 2.Rc7#
- 1...Rd8
- 2.Rc7#
- 1...Re8
- 2.Rc7#
- 1...Rf8
- 2.Rc7#
- 1...Rg8
- 2.Rc7#
- 1...Bc2
- 2.Sd4#
- 1...Sh5
- 2.Qb7#
- 2.Qd7#
- 1...Se8
- 2.Qb7#
- 2.Qd7#
- 1...b5!
- 1...Bxe2+
- 1.Qxf5?
- threat
- 2.Kg4#
- 2.Qe4#
- 1...Bxe2+
- 2.Kxe2#
- 1...Sxf5
- 2.Kg4#
- 1...Rc7
- 2.Rxc7#
- 1...c4
- 2.Rxc4#
- 1...Rd8
- 2.Rc7#
- 1...Bc2
- 2.Sd4#
- 1...exf5!
- threat
- 1.Qg6?
- 1...Bxe2+
- 2.Kxe2#
- 1...Rc7
- 2.Rxc7#
- 1...c4
- 2.Rxc4#
- 1...Ra8
- 2.Rc7#
- 1...Rb8
- 2.Rc7#
- 1...Rd8
- 2.Rc7#
- 1...Re8
- 2.Rc7#
- 1...Rf8
- 2.Rc7#
- 1...Rg8
- 2.Rc7#
- 1...Bc2
- 2.Sd4#
- 1...Sh5
- 2.Qxe6#
- 1...b5
- 2.axb5#
- 1...Se8!
- 1...Bxe2+
- 1.Qg8?
- threat
- 2.Qxc8#
- 1...Bxe2+
- 2.Kxe2#
- 1...Rxg8
- 2.Rc7#
- 1...Rc7
- 2.Rxc7#
- 1...Ra8
- 2.Rc7#
- 1...Rb8
- 2.Rc7#
- 1...Rd8
- 2.Rc7#
- 1...Re8
- 2.Rc7#
- 1...Rf8
- 2.Rc7#
- 1...Se8!
- threat
- 1.Qxh4?
- threat
- 2.Kxg3#
- 1...Bxe2+
- 2.Kxe2#
- 1...Rc7
- 2.Rxc7#
- 1...c4
- 2.Rxc4#
- 1...Rd8
- 2.Rc7#
- 1...Bc2
- 2.Sd4#
- 1...Sh5!
- threat
- 1.Qh6?
- 1...Bxe2+
- 2.Kxe2#
- 1...Rc7
- 2.Rxc7#
- 1...c4
- 2.Rxc4#
- 1...Ra8
- 2.Rc7#
- 1...Rb8
- 2.Rc7#
- 1...Rd8
- 2.Rc7#
- 1...Re8
- 2.Rc7#
- 1...Rf8
- 2.Rc7#
- 1...Rg8
- 2.Rc7#
- 1...Bc2
- 2.Sd4#
- 1...Sh5
- 2.Qxe6#
- 1...b5
- 2.axb5#
- 1...Se8!
- 1...Bxe2+
- 1.Qxg7?
- threat
- 2.Qd7#
- 1...Bxe2+
- 2.Kxe2#
- 1...c4
- 2.Rxc4#
- 1...Rc7
- 2.Rxc7#
- 2.Qxc7#
- 1...Rd8
- 2.Rc7#
- 2.Qc7#
- 1...Bxg7!
- threat
- 1.Qxh8?
- threat
- 2.Qxc8#
- 1...Bxe2+
- 2.Kxe2#
- 1...Rxh8
- 2.Rc7#
- 1...Rc7
- 2.Rxc7#
- 1...Ra8
- 2.Rc7#
- 1...Rb8
- 2.Rc7#
- 1...Rd8
- 2.Rc7#
- 1...Re8
- 2.Rc7#
- 1...Rf8
- 2.Rc7#
- 1...Rg8
- 2.Rc7#
- 1...Se8!
- threat
- 1.e4?
- 1...fxe4+
- 2.Qxe4#
- 1...Rc7
- 2.Rxc7#
- 1...c4
- 2.Rxc4#
- 1...Se8
- 2.Qd7#
- 1...Ra8
- 2.Rc7#
- 1...Rb8
- 2.Rc7#
- 1...Rd8
- 2.Rc7#
- 1...Re8
- 2.Rc7#
- 1...Rf8
- 2.Rc7#
- 1...Rg8
- 2.Rc7#
- 1...Bc2
- 2.Sd4#
- 1...Sh5
- 2.Qd7#
- 1...b5
- 2.axb5#
- 1...Bxe2+!
- 1...fxe4+
- 1.Sd3?
- Keys
- 1.Rc4!
- 1...Bxe2+
- 2.Kxe2#
- 1...Rc7
- 2.Rxc7#
- 1...Ra8
- 2.Rc7#
- 1...Rb8
- 2.Rc7#
- 1...Rd8
- 2.Rc7#
- 1...Re8
- 2.Rc7#
- 1...Rf8
- 2.Rc7#
- 1...Rg8
- 2.Rc7#
- 1...Bc2
- 2.Sd4#
- 1...Sh5
- 2.Qd7#
- 1...Se8
- 2.Qd7#
- 1...b5
- 2.axb5#
- 1...Bxe2+
- 1.Rc4!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- R(k);N_GUARD::R1(L),XR(k)
- R(k);N_GUARD::R1(L)
- B(a);N_PINS(B)::S(B)
- B(a);CHECK,XS(B)::B(C)+K(F),XB(a)
- S(j);OGATE::QAB1(M)
- P(e);OGATEB::R(D),XP(e)
- P(g);OGATE::P(H),XP(g)
- Tries
- Try
- S(I);
- Threat
- DUALS(2)
- Vars
- B(a);CHECK,XS(B)::B(C)+K(F),XB(a)
- K(h);N_SPINP(e),S_FLIGHT::B(C)+K(F)
- R(k);::S(I)
- P(e);::B(C)+K(F)
- Refutation
- R(k);
- Try
- R(D);
- Vars
- B(a);CHECK,XS(B)::B(C)+K(F),XB(a)
- R(k);N_GUARD::R1(L),XR(k)
- P(e);OGATEB::R(D),XP(e)
- R(k);N_GUARD::R1(L)
- S(j);OGATE::QAB1(M)
- P(g);OGATE::P(H),XP(g)
- Refutation
- B(a);N_PINS(B),N_SPINP(e)
- Try
- R(D);N_PINP(e)
- Threat
- R1(D)
- Vars
- B(a);CHECK,XS(B)::B(C)+K(F),XB(a)
- R(k);N_GUARD::R1(L)
- S(j);OGATE::QAB1(M)
- Refutation
- P(e);
- Try
- R(L);
- Vars
- B(a);CHECK,XS(B)::B(C)+K(F),XB(a)
- R(k);N_GUARD::R1(L),XR(k)
- P(e);OGATEB::R(D),XP(e)
- R(k);N_GUARD::R1(L)
- B(a);N_PINS(B)::S(B)
- Refutation
- P(g);
- Try
- Q(M);XP(f)
- Threat
- DUALS(2)
- Vars
- B(a);CHECK,XS(B)::B(C)+K(F),XB(a)
- S(j);XQ(M)::B(C)+K(F)
- R(k);N_GUARD::R1(L),XR(k)
- P(e);OGATEB::R(D),XP(e)
- R(k);N_GUARD::R1(L)
- B(a);N_PINS(B)::S(B)
- Refutation
- P(i);XQ(M)
- Try
- Q(M);
- Vars
- B(a);CHECK,XS(B)::B(C)+K(F),XB(a)
- R(k);N_GUARD::R1(L),XR(k)
- P(e);OGATEB::R(D),XP(e)
- R(k);N_GUARD::R1(L)
- B(a);N_PINS(B)::S(B)
- S(j);N_GUARD::QAR2(M),XP(i)
- P(g);OGATE::P(H),XP(g)
- Refutation
- S(j);
- Try
- Q(M);
- Threat
- QAR2(M),XR(k)
- Vars
- B(a);CHECK,XS(B)::B(C)+K(F),XB(a)
- R(k);N_GUARD,XQ(M)::R1(L)
- R(k);N_GUARD::R1(L),XR(k)
- R(k);N_GUARD::R1(L)
- Refutation
- S(j);
- Try
- Q(M);XP(d)
- Threat
- B(C)+K(F),XP(c)
- Vars
- B(a);CHECK,XS(B)::B(C)+K(F),XB(a)
- R(k);N_GUARD::R1(L),XR(k)
- P(e);OGATEB::R(D),XP(e)
- R(k);N_GUARD::R1(L)
- B(a);N_PINS(B)::S(B)
- Refutation
- S(j);
- Try
- Q(M);
- Vars
- B(a);CHECK,XS(B)::B(C)+K(F),XB(a)
- R(k);N_GUARD::R1(L),XR(k)
- P(e);OGATEB::R(D),XP(e)
- R(k);N_GUARD::R1(L)
- B(a);N_PINS(B)::S(B)
- S(j);N_GUARD::QAR2(M),XP(i)
- P(g);OGATE::P(H),XP(g)
- Refutation
- S(j);
- Try
- Q(M);XS(j)
- Threat
- QAB1(M)
- Vars
- B(a);CHECK,XS(B)::B(C)+K(F),XB(a)
- P(e);OGATEB::R(D),XP(e)
- Refutation
- B(l);XQ(M)
- Try
- Q(M);XB(l)
- Threat
- QAR2(M),XR(k)
- Vars
- B(a);CHECK,XS(B)::B(C)+K(F),XB(a)
- R(k);N_GUARD,XQ(M)::R1(L)
- R(k);N_GUARD::R1(L),XR(k)
- R(k);N_GUARD::R1(L)
- Refutation
- S(j);
- Try
- P(E);
- Vars
- P(f);CHECK,OGATE,XP(E)::QAB(M),XP(f)
- R(k);N_GUARD::R1(L),XR(k)
- P(e);OGATEB::R(D),XP(e)
- S(j);OGATE::QAB1(M)
- R(k);N_GUARD::R1(L)
- B(a);N_PINS(B)::S(B)
- P(g);OGATE::P(H),XP(g)
- Refutation
- B(a);CHECK,XS(B)
- Try
- Actual
- R(D);
- Vars
- B(a);CHECK,XS(B)::B(C)+K(F),XB(a)
- R(k);N_GUARD::R1(L),XR(k)
- R(k);N_GUARD::R1(L)
- B(a);N_PINS(B)::S(B)
- S(j);OGATE::QAB1(M)
- P(g);OGATE::P(H),XP(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).