MESON Chess Problem Database
Problem Display
PID: 150298 (KbBnb3/2p5/1pk2N2/1N1n1P2/P2Rq3/B3p3/2P1P1R1/7Q w - - 0 1)
Caine, Walter Edmund
The Referee, 1925
(First published on Sun Jul 19 1925)
#2
12 + 9
| 15239 | Valois Notebooks | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Qxg2
- 2.Rc4#
- 1...Qf3
- 2.Rc4#
- 1...Qxf5
- 2.Rc4#
- 1...Qxd4
- 2.Sxd4#
- 1...Qe5
- 2.Rc4#
- 1...Qe6
- 2.Rc4#
- 1...Ba7
- 2.Sxa7#
- 1...Bh5
- 2.Bd7#
- 1...Bg6
- 2.Bd7#
- 1...Bd7
- 2.Bxd7#
- 1...Bf7
- 2.Bd7#
- 1...Se6
- 2.Bb7#
- 1...Sb7
- 2.Bxb7#
- 1...Sf7
- 2.Bb7#
- 1...Qxg2
- Tries
- 1.Rg1?
- 1...Qxh1
- 2.Rc4#
- 1...Qxc2
- 2.Qxd5#
- 1...Qxf5
- 2.Rc4#
- 1...Qxd4
- 2.Sxd4#
- 1...Sb4
- 2.Rc4#
- 1...Qg2
- 2.Rc4#
- 1...Qd3
- 2.Qxd5#
- 1...Qf3
- 2.Rc4#
- 1...Qf4
- 2.Qxd5#
- 1...Qg4
- 2.Qxd5#
- 1...Qh4
- 2.Qxd5#
- 1...Qe5
- 2.Rc4#
- 1...Qe6
- 2.Rc4#
- 1...Qe7
- 2.Qxd5#
- 1...Ba7
- 2.Sxa7#
- 1...Bh5
- 2.Bd7#
- 1...Bg6
- 2.Bd7#
- 1...Bd7
- 2.Bxd7#
- 1...Bf7
- 2.Bd7#
- 1...Sc3
- 2.Rc4#
- 1...Sf4
- 2.Rc4#
- 1...Se7
- 2.Rc4#
- 1...Se6
- 2.Bb7#
- 1...Sb7
- 2.Bxb7#
- 1...Sf7
- 2.Bb7#
- 1...Sxf6!
- 1...Qxh1
- 1.Rh2?
- 1...Qxh1
- 2.Rc4#
- 1...Qxc2
- 2.Qxd5#
- 1...Qxf5
- 2.Rc4#
- 1...Qxd4
- 2.Sxd4#
- 1...Sb4
- 2.Rc4#
- 1...Qg2
- 2.Rc4#
- 1...Qd3
- 2.Qxd5#
- 1...Qf3
- 2.Rc4#
- 1...Qf4
- 2.Qxd5#
- 1...Qg4
- 2.Qxd5#
- 1...Qh4
- 2.Qxd5#
- 1...Qe5
- 2.Rc4#
- 1...Qe6
- 2.Rc4#
- 1...Qe7
- 2.Qxd5#
- 1...Ba7
- 2.Sxa7#
- 1...Bh5
- 2.Bd7#
- 1...Bg6
- 2.Bd7#
- 1...Bd7
- 2.Bxd7#
- 1...Bf7
- 2.Bd7#
- 1...Sc3
- 2.Rc4#
- 1...Sf4
- 2.Rc4#
- 1...Se7
- 2.Rc4#
- 1...Se6
- 2.Bb7#
- 1...Sb7
- 2.Bxb7#
- 1...Sf7
- 2.Bb7#
- 1...Sxf6!
- 1...Qxh1
- 1.Rg3?
- 1...Qxh1
- 2.Rc4#
- 1...Qxc2
- 2.Qxd5#
- 1...Qxf5
- 2.Rc4#
- 1...Qxd4
- 2.Sxd4#
- 1...Sb4
- 2.Rc4#
- 1...Qg2
- 2.Rc4#
- 1...Qd3
- 2.Qxd5#
- 1...Qf3
- 2.Rc4#
- 1...Qf4
- 2.Qxd5#
- 1...Qg4
- 2.Qxd5#
- 1...Qh4
- 2.Qxd5#
- 1...Qe5
- 2.Rc4#
- 1...Qe6
- 2.Rc4#
- 1...Qe7
- 2.Qxd5#
- 1...Ba7
- 2.Sxa7#
- 1...Bh5
- 2.Bd7#
- 1...Bg6
- 2.Bd7#
- 1...Bd7
- 2.Bxd7#
- 1...Bf7
- 2.Bd7#
- 1...Sc3
- 2.Rc4#
- 1...Sf4
- 2.Rc4#
- 1...Se7
- 2.Rc4#
- 1...Se6
- 2.Bb7#
- 1...Sb7
- 2.Bxb7#
- 1...Sf7
- 2.Bb7#
- 1...Sxf6!
- 1...Qxh1
- 1.Rg4?
- 1...Qxh1
- 2.Rc4#
- 1...Qxc2
- 2.Qxd5#
- 1...Qxf5
- 2.Rc4#
- 1...Qxd4
- 2.Sxd4#
- 1...Qxg4
- 2.Qxd5#
- 1...Sb4
- 2.Rc4#
- 1...Qg2
- 2.Rc4#
- 1...Qd3
- 2.Qxd5#
- 1...Qf3
- 2.Rc4#
- 1...Qf4
- 2.Qxd5#
- 1...Qe5
- 2.Rc4#
- 1...Qe6
- 2.Rc4#
- 1...Qe7
- 2.Qxd5#
- 1...Ba7
- 2.Sxa7#
- 1...Bh5
- 2.Bd7#
- 1...Bg6
- 2.Bd7#
- 1...Bd7
- 2.Bxd7#
- 1...Bf7
- 2.Bd7#
- 1...Sc3
- 2.Rc4#
- 1...Sf4
- 2.Rc4#
- 1...Se7
- 2.Rc4#
- 1...Se6
- 2.Bb7#
- 1...Sb7
- 2.Bxb7#
- 1...Sf7
- 2.Bb7#
- 1...Sxf6!
- 1...Qxh1
- 1.Rg5?
- 1...Qxh1
- 2.Rc4#
- 1...Qxc2
- 2.Qxd5#
- 1...Qxf5
- 2.Rc4#
- 1...Qxd4
- 2.Sxd4#
- 1...Sb4
- 2.Rc4#
- 1...Qg2
- 2.Rc4#
- 1...Qd3
- 2.Qxd5#
- 1...Qf3
- 2.Rc4#
- 1...Qf4
- 2.Qxd5#
- 1...Qg4
- 2.Qxd5#
- 1...Qh4
- 2.Qxd5#
- 1...Qe5
- 2.Rc4#
- 1...Qe6
- 2.Rc4#
- 1...Qe7
- 2.Qxd5#
- 1...Ba7
- 2.Sxa7#
- 1...Bh5
- 2.Bd7#
- 1...Bg6
- 2.Bd7#
- 1...Bd7
- 2.Bxd7#
- 1...Bf7
- 2.Bd7#
- 1...Sc3
- 2.Rc4#
- 1...Sf4
- 2.Rc4#
- 1...Se7
- 2.Rc4#
- 1...Se6
- 2.Bb7#
- 1...Sb7
- 2.Bxb7#
- 1...Sf7
- 2.Bb7#
- 1...Sxf6!
- 1...Qxh1
- 1.Rg7?
- 1...Qxh1
- 2.Rc4#
- 1...Qxc2
- 2.Qxd5#
- 1...Qxf5
- 2.Rc4#
- 1...Qxd4
- 2.Sxd4#
- 1...Sb4
- 2.Rc4#
- 1...Qg2
- 2.Rc4#
- 1...Qd3
- 2.Qxd5#
- 1...Qf3
- 2.Rc4#
- 1...Qf4
- 2.Qxd5#
- 1...Qg4
- 2.Qxd5#
- 1...Qh4
- 2.Qxd5#
- 1...Qe5
- 2.Rc4#
- 1...Qe6
- 2.Rc4#
- 1...Qe7
- 2.Qxd5#
- 1...Ba7
- 2.Sxa7#
- 1...Bh5
- 2.Bd7#
- 1...Bg6
- 2.Bd7#
- 1...Bd7
- 2.Bxd7#
- 1...Bf7
- 2.Bd7#
- 1...Sc3
- 2.Rc4#
- 1...Sf4
- 2.Rc4#
- 1...Se7
- 2.Rc4#
- 1...Se6
- 2.Bb7#
- 1...Sb7
- 2.Bxb7#
- 1...Sf7
- 2.Bb7#
- 1...Sxf6!
- 1...Qxh1
- 1.Rg8?
- 1...Qxh1
- 2.Rc4#
- 1...Qxc2
- 2.Qxd5#
- 1...Qxf5
- 2.Rc4#
- 1...Qxd4
- 2.Sxd4#
- 1...Sb4
- 2.Rc4#
- 1...Qg2
- 2.Rc4#
- 1...Qd3
- 2.Qxd5#
- 1...Qf3
- 2.Rc4#
- 1...Qf4
- 2.Qxd5#
- 1...Qg4
- 2.Qxd5#
- 1...Qh4
- 2.Qxd5#
- 1...Qe5
- 2.Rc4#
- 1...Qe6
- 2.Rc4#
- 1...Qe7
- 2.Qxd5#
- 1...Ba7
- 2.Sxa7#
- 1...Bh5
- 2.Bd7#
- 1...Bg6
- 2.Bd7#
- 1...Bd7
- 2.Bxd7#
- 1...Bf7
- 2.Bd7#
- 1...Sc3
- 2.Rc4#
- 1...Sf4
- 2.Rc4#
- 1...Se7
- 2.Rc4#
- 1...Se6
- 2.Bb7#
- 1...Sb7
- 2.Bxb7#
- 1...Sf7
- 2.Bb7#
- 1...Sxf6!
- 1...Qxh1
- 1.Rxe4?
- threat
- 2.Sd4#
- 2.Rc4#
- 1...Sb4
- 2.Rc4#
- 1...Se6
- 2.Bb7#
- 2.Rxe6#
- 1...Sb7
- 2.Sd4#
- 2.Bxb7#
- 1...Sxf6!
- threat
- 1.Rg1?
- Keys
- 1.Rg6!
- 1...Qxh1
- 2.Rc4#
- 1...Qxc2
- 2.Qxd5#
- 1...Qxf5
- 2.Rc4#
- 1...Qxd4
- 2.Sxd4#
- 1...Bxg6
- 2.Bd7#
- 1...Sxf6
- 2.Qxe4#
- 1...Sb4
- 2.Rc4#
- 1...Qg2
- 2.Rc4#
- 1...Qd3
- 2.Qxd5#
- 1...Qf3
- 2.Rc4#
- 1...Qf4
- 2.Qxd5#
- 1...Qg4
- 2.Qxd5#
- 1...Qh4
- 2.Qxd5#
- 1...Qe5
- 2.Rc4#
- 1...Qe6
- 2.Rc4#
- 1...Qe7
- 2.Qxd5#
- 1...Ba7
- 2.Sxa7#
- 1...Bd7
- 2.Bxd7#
- 1...Bf7
- 2.Bd7#
- 1...Sc3
- 2.Rc4#
- 1...Sf4
- 2.Rc4#
- 1...Se7
- 2.Rc4#
- 1...Se6
- 2.Bb7#
- 1...Sb7
- 2.Bxb7#
- 1...Sf7
- 2.Bb7#
- 1...Qxh1
- 1.Rg6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 12
- REMOVED MATES = 1
- Sets
- Q(b);N_GUARD,XR(D)::R(G)
- Q(b);N_GUARD::R(G)
- Q(b);N_GUARD,XP(I)::R(G)
- Q(b);XR(G)::S(H),XQ(b)
- B(g);N_GUARD::S(H),XB(g)
- B(i);N_GUARD::B(L)
- B(i);N_GUARD::B(L),XB(i)
- S(h);N_GUARD::B(L)
- S(h);N_GUARD::B(L),XS(h)
- Tries
- Try
- R(D);
- Vars
- Q(b);N_GUARD,XQ(A)::R(G)
- Q(b);OGATE,P_SPINS(c),XP(B)::QAB1(A),XS(c)
- Q(b);N_GUARD,P_SPINS(c),XP(I)::R(G)
- Q(b);P_SPINS(c),XR(G)::S(H),XQ(b)
- S(c);P_SPINQ(b)::R(G)
- Q(b);N_GUARD::R(G)
- Q(b);OGATE,P_SPINS(c)::QAB1(A),XS(c)
- Q(b);N_GUARD,P_SPINS(c)::R(G)
- B(g);N_GUARD::S(H),XB(g)
- B(i);N_GUARD::B(L)
- B(i);N_GUARD::B(L),XB(i)
- S(h);N_GUARD::B(L)
- S(h);N_GUARD::B(L),XS(h)
- Refutation
- S(c);P_SPINQ(b),XS(J)
- Try
- R(D);
- Vars
- Q(b);N_GUARD,XQ(A)::R(G)
- Q(b);OGATE,P_SPINS(c),XP(B)::QAB1(A),XS(c)
- Q(b);N_GUARD,P_SPINS(c),XP(I)::R(G)
- Q(b);P_SPINS(c),XR(G)::S(H),XQ(b)
- S(c);P_SPINQ(b)::R(G)
- Q(b);N_GUARD::R(G)
- Q(b);OGATE,P_SPINS(c)::QAB1(A),XS(c)
- Q(b);N_GUARD,P_SPINS(c)::R(G)
- B(g);N_GUARD::S(H),XB(g)
- B(i);N_GUARD::B(L)
- B(i);N_GUARD::B(L),XB(i)
- S(h);N_GUARD::B(L)
- S(h);N_GUARD::B(L),XS(h)
- Refutation
- S(c);P_SPINQ(b),XS(J)
- Try
- R(D);
- Vars
- Q(b);N_GUARD,XQ(A)::R(G)
- Q(b);OGATE,P_SPINS(c),XP(B)::QAB1(A),XS(c)
- Q(b);N_GUARD,P_SPINS(c),XP(I)::R(G)
- Q(b);P_SPINS(c),XR(G)::S(H),XQ(b)
- S(c);P_SPINQ(b)::R(G)
- Q(b);N_GUARD::R(G)
- Q(b);OGATE,P_SPINS(c)::QAB1(A),XS(c)
- Q(b);N_GUARD,P_SPINS(c)::R(G)
- B(g);N_GUARD::S(H),XB(g)
- B(i);N_GUARD::B(L)
- B(i);N_GUARD::B(L),XB(i)
- S(h);N_GUARD::B(L)
- S(h);N_GUARD::B(L),XS(h)
- Refutation
- S(c);P_SPINQ(b),XS(J)
- Try
- R(D);
- Vars
- Q(b);N_GUARD,XQ(A)::R(G)
- Q(b);OGATE,P_SPINS(c),XP(B)::QAB1(A),XS(c)
- Q(b);N_GUARD,P_SPINS(c),XP(I)::R(G)
- Q(b);P_SPINS(c),XR(G)::S(H),XQ(b)
- Q(b);OGATE,P_SPINS(c),XR(D)::QAB1(A),XS(c)
- S(c);P_SPINQ(b)::R(G)
- Q(b);N_GUARD::R(G)
- Q(b);OGATE,P_SPINS(c)::QAB1(A),XS(c)
- Q(b);N_GUARD,P_SPINS(c)::R(G)
- B(g);N_GUARD::S(H),XB(g)
- B(i);N_GUARD::B(L)
- B(i);N_GUARD::B(L),XB(i)
- S(h);N_GUARD::B(L)
- S(h);N_GUARD::B(L),XS(h)
- Refutation
- S(c);P_SPINQ(b),XS(J)
- Try
- R(D);
- Vars
- Q(b);N_GUARD,XQ(A)::R(G)
- Q(b);OGATE,P_SPINS(c),XP(B)::QAB1(A),XS(c)
- Q(b);N_GUARD,P_SPINS(c),XP(I)::R(G)
- Q(b);P_SPINS(c),XR(G)::S(H),XQ(b)
- S(c);P_SPINQ(b)::R(G)
- Q(b);N_GUARD::R(G)
- Q(b);OGATE,P_SPINS(c)::QAB1(A),XS(c)
- Q(b);N_GUARD,P_SPINS(c)::R(G)
- B(g);N_GUARD::S(H),XB(g)
- B(i);N_GUARD::B(L)
- B(i);N_GUARD::B(L),XB(i)
- S(h);N_GUARD::B(L)
- S(h);N_GUARD::B(L),XS(h)
- Refutation
- S(c);P_SPINQ(b),XS(J)
- Try
- R(D);
- Vars
- Q(b);N_GUARD,XQ(A)::R(G)
- Q(b);OGATE,P_SPINS(c),XP(B)::QAB1(A),XS(c)
- Q(b);N_GUARD,P_SPINS(c),XP(I)::R(G)
- Q(b);P_SPINS(c),XR(G)::S(H),XQ(b)
- S(c);P_SPINQ(b)::R(G)
- Q(b);N_GUARD::R(G)
- Q(b);OGATE,P_SPINS(c)::QAB1(A),XS(c)
- Q(b);N_GUARD,P_SPINS(c)::R(G)
- B(g);N_GUARD::S(H),XB(g)
- B(i);N_GUARD::B(L)
- B(i);N_GUARD::B(L),XB(i)
- S(h);N_GUARD::B(L)
- S(h);N_GUARD::B(L),XS(h)
- Refutation
- S(c);P_SPINQ(b),XS(J)
- Try
- R(D);
- Vars
- Q(b);N_GUARD,XQ(A)::R(G)
- Q(b);OGATE,P_SPINS(c),XP(B)::QAB1(A),XS(c)
- Q(b);N_GUARD,P_SPINS(c),XP(I)::R(G)
- Q(b);P_SPINS(c),XR(G)::S(H),XQ(b)
- S(c);P_SPINQ(b)::R(G)
- Q(b);N_GUARD::R(G)
- Q(b);OGATE,P_SPINS(c)::QAB1(A),XS(c)
- Q(b);N_GUARD,P_SPINS(c)::R(G)
- B(g);N_GUARD::S(H),XB(g)
- B(i);N_GUARD::B(L)
- B(i);N_GUARD::B(L),XB(i)
- S(h);N_GUARD::B(L)
- S(h);N_GUARD::B(L),XS(h)
- Refutation
- S(c);P_SPINQ(b),XS(J)
- Try
- R(G);XQ(b)
- Threat
- DUALS(2)
- Vars
- S(c);::R(G)
- Refutation
- S(c);XS(J)
- Try
- Actual
- R(D);
- Vars
- Q(b);N_GUARD,XQ(A)::R(G)
- Q(b);OGATE,P_SPINS(c),XP(B)::QAB1(A),XS(c)
- Q(b);N_GUARD,P_SPINS(c),XP(I)::R(G)
- Q(b);P_SPINS(c),XR(G)::S(H),XQ(b)
- B(i);N_GUARD,XR(D)::B(L)
- S(c);OGATEB,P_SPINQ(b),P_SPINS(c),XS(J)::QAB(A),XQ(b)
- S(c);P_SPINQ(b)::R(G)
- Q(b);N_GUARD::R(G)
- Q(b);OGATE,P_SPINS(c)::QAB1(A),XS(c)
- Q(b);N_GUARD,P_SPINS(c)::R(G)
- B(g);N_GUARD::S(H),XB(g)
- B(i);N_GUARD::B(L),XB(i)
- B(i);N_GUARD::B(L)
- S(h);N_GUARD::B(L)
- S(h);N_GUARD::B(L),XS(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).