MESON Chess Problem Database
Problem Display
PID: 269414 (2r5/8/r7/1R6/kB1NQ3/1R6/2N1p3/Kn6 w - - 0 1)
Boswell, Edward
Caine, Walter Edmund
Sunday Referee, 1930
(First published on Sun Oct 26 1930)
#2
7 + 5
| 5949 | Vaasa | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Ra5
- 2.Rxa5#
- 1...Rb6
- 2.Ra5#
- 1...Rac6
- 2.Ra5#
- 1...Rd6
- 2.Ra5#
- 1...Re6
- 2.Ra5#
- 1...Rf6
- 2.Ra5#
- 1...Rg6
- 2.Ra5#
- 1...Rh6
- 2.Ra5#
- 1...Sd2
- 2.Ra3#
- 1...Sa3
- 2.Rxa3#
- 1...Sc3
- 2.Ra3#
- 1...Ra5
- Tries
- 1.Be1?
- threat
- 2.Sc6#
- 2.R3b4#
- 1...Rxc2
- 2.Sxc2#
- 1...Rac6
- 2.Sxc6#
- 2.R3b4#
- 2.Ra5#
- 1...Rd6
- 2.R3b4#
- 2.Ra5#
- 1...Re6
- 2.R3b4#
- 2.Ra5#
- 1...Rc3
- 2.R3b4#
- 1...Rc5
- 2.R3b4#
- 1...Rcc6
- 2.Sxc6#
- 2.R3b4#
- 1...Rd8
- 2.R3b4#
- 1...Re8
- 2.Se6#
- 2.R3b4#
- 1...Sd2
- 2.Ra3#
- 2.R3b4#
- 1...Sa3
- 2.Rxa3#
- 2.R3b4#
- 1...Sc3
- 2.Ra3#
- 2.R3b4#
- 1...Rc4!
- threat
- 1.Bd2?
- threat
- 2.Sc6#
- 2.R3b4#
- 1...Rxc2
- 2.Sxc2#
- 1...Sxd2
- 2.Ra3#
- 2.R3b4#
- 1...e1Q
- 2.R3b4#
- 1...e1R
- 2.R3b4#
- 1...Rac6
- 2.Sxc6#
- 2.R3b4#
- 2.Ra5#
- 1...Rd6
- 2.R3b4#
- 2.Ra5#
- 1...Re6
- 2.R3b4#
- 2.Ra5#
- 1...Rc3
- 2.R3b4#
- 1...Rc5
- 2.R3b4#
- 1...Rcc6
- 2.Sxc6#
- 2.R3b4#
- 1...Rd8
- 2.R3b4#
- 1...Re8
- 2.Se6#
- 2.R3b4#
- 1...Sa3
- 2.Rxa3#
- 2.R3b4#
- 1...Sc3
- 2.Ra3#
- 2.R3b4#
- 1...Rc4!
- threat
- 1.Bc3?
- threat
- 2.Sc6#
- 2.R3b4#
- 1...Rxc3
- 2.R3b4#
- 1...Sxc3
- 2.Ra3#
- 2.R3b4#
- 1...e1Q
- 2.R3b4#
- 1...e1R
- 2.R3b4#
- 1...Rac6
- 2.Sxc6#
- 2.R3b4#
- 2.Ra5#
- 1...Rd6
- 2.R3b4#
- 2.Ra5#
- 1...Re6
- 2.R3b4#
- 2.Ra5#
- 1...Rc5
- 2.R3b4#
- 1...Rcc6
- 2.Sxc6#
- 2.R3b4#
- 1...Rd8
- 2.R3b4#
- 1...Re8
- 2.Se6#
- 2.R3b4#
- 1...Sd2
- 2.Ra3#
- 2.R3b4#
- 1...Sa3
- 2.Rxa3#
- 2.R3b4#
- 1...Rc4!
- threat
- 1.Qc6?
- threat
- 2.Ra5#
- 2.Qxa6#
- 1...Raxc6
- 2.Ra5#
- 1...Ra5
- 2.Rxa5#
- 1...Rb6
- 2.Ra5#
- 1...Ra7
- 2.Ra5#
- 1...Raa8
- 2.Ra5#
- 1...Rca8
- 2.Ra5#
- 2.Rb6#
- 1...Rcxc6!
- threat
- 1.Be1?
- Keys
- 1.Sc6!
- threat
- 2.Be1#
- 2.Bd2#
- 2.Ba3#
- 2.Bc3#
- 2.Ba5#
- 2.Bc5#
- 2.Bd6#
- 2.Be7#
- 2.Bf8#
- 1...Kxb3+
- 2.Ba5#
- 1...Kxb5+
- 2.Ba3#
- 1...Raxc6
- 2.Bc5#
- 1...Rcxc6
- 2.Bc5#
- 1...e1Q
- 2.Bxe1#
- 1...e1S
- 2.Bxe1#
- 2.Bd2#
- 2.Ba3#
- 2.Bc3#
- 2.Ba5#
- 2.Bc5#
- 2.Bd6#
- 2.Be7#
- 2.Bf8#
- 1...e1B
- 2.Bxe1#
- 2.Bd2#
- 2.Bc3#
- 1...e1R
- 2.Bxe1#
- 1...Ra5
- 2.Be1#
- 2.Bd2#
- 2.Ba3#
- 2.Bc3#
- 2.Bxa5#
- 2.Bc5#
- 2.Bd6#
- 2.Be7#
- 2.Bf8#
- 1...Rd8
- 2.Bd6#
- 1...Re8
- 2.Be7#
- 1...Rf8
- 2.Be1#
- 2.Bd2#
- 2.Ba3#
- 2.Bc3#
- 2.Ba5#
- 2.Bc5#
- 2.Bd6#
- 2.Be7#
- 2.Bxf8#
- 1...Sd2
- 2.Bxd2#
- 1...Sa3
- 2.Bxa3#
- 1...Sc3
- 2.Bxc3#
- threat
- 1.Sc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 7
- REMOVED MATES = 7
- Sets
- R(d);N_GUARD::R1(G),XR(d)
- R(d);N_GUARD::R1(G)
- S(a);N_GUARD::R1(C)
- S(a);N_GUARD::R1(C),XS(a)
- Tries
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(e);XS(B)::QAR(F)+S(E),XR(e)
- R(e);::R1(C)
- Refutation
- R(e);
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(e);XS(B)::QAR(F)+S(E),XR(e)
- P(b);::R1(C)
- R(e);::R1(C)
- Refutation
- R(e);
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(e);XB(D)::R1(C)
- P(b);::R1(C)
- R(e);::R1(C)
- Refutation
- R(e);
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- R(d);XQ(F)::R1(G)
- R(d);::QAB(F)+R(G),DCHECK,XR(d)
- R(d);::QAB(F)+R(G),DCHECK
- Refutation
- R(e);XQ(F)
- Try
- Actual
- S(E);
- Threat
- DUALS(9)
- Vars
- K(c);CHECK,S_FLIGHT,XR(C)::R(G)+B(D)
- K(c);CHECK,S_FLIGHT,XR(G)::R(C)+B(D)
- R(d);XS(E)::QAR(F)+B(D)
- R(e);XS(E)::QAR(F)+B(D)
- P(b);::QAR(F)+B(D),XQ(b)
- P(b);::QAR(F)+B(D),XR(b)
- R(e);::QAR(F)+B(D)
- S(a);::QAR(F)+B(D),XS(a)
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