MESON Chess Problem Database
Problem Display
PID: 226664 (2n2B2/1n1N4/p1B5/rq6/kr6/3RP3/P2RK3/3N4 w - - 0 1)
Caine, Walter Edmund
Sunday Chronicle, 1945
(First published on Sun Sep 30 1945)
#2
9 + 7
| 15239 | Valois Notebooks | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Sc3#
- 1...Rb2
- 2.Sxb2#
- 2.Sc3#
- 1...Rb3
- 2.axb3#
- 1...Rc4
- 2.Sb2#
- 2.Ra3#
- 1...Rd4
- 2.Sb2#
- 2.Sc3#
- 1...Re4
- 2.Sb2#
- 2.Sc3#
- 1...Rf4
- 2.Sb2#
- 2.Sc3#
- 1...Rg4
- 2.Sb2#
- 2.Sc3#
- 1...Rh4
- 2.Sb2#
- 2.Sc3#
- 1...Sc5
- 2.Sxc5#
- 1...Sbd6
- 2.Sc5#
- 1...Sd8
- 2.Sc5#
- 1...Sb6
- 2.Sxb6#
- 1...Scd6
- 2.Sb6#
- 1...Sa7
- 2.Sb6#
- 1...Se7
- 2.Sb6#
- 1...Rb1
- Tries
- 1.Ke1?
- 1...Rb1
- 2.Ra3#
- 1...Rb2
- 2.Sxb2#
- 2.Sc3#
- 2.Ra3#
- 1...Rb3
- 2.axb3#
- 1...Rc4
- 2.Sb2#
- 2.Ra3#
- 1...Rd4
- 2.Sb2#
- 2.Sc3#
- 2.Ra3#
- 2.Rxd4#
- 1...Re4
- 2.Sb2#
- 2.Sc3#
- 2.Ra3#
- 1...Rf4
- 2.Sb2#
- 2.Sc3#
- 2.Ra3#
- 1...Rg4
- 2.Sb2#
- 2.Sc3#
- 2.Ra3#
- 1...Rh4
- 2.Sb2#
- 2.Sc3#
- 2.Ra3#
- 1...Sc5
- 2.Sxc5#
- 1...Sbd6
- 2.Sc5#
- 1...Sd8
- 2.Sc5#
- 1...Sb6
- 2.Sxb6#
- 1...Scd6
- 2.Sb6#
- 1...Sa7
- 2.Sb6#
- 1...Se7
- 2.Sb6#
- 1...Qxc6!
- 1...Rb1
- 1.Bd6?
- 1...Sbxd6
- 2.Sc5#
- 1...Scxd6
- 2.Sb6#
- 1...Sc5
- 2.Sxc5#
- 1...Rb1
- 2.Sc3#
- 1...Rb2
- 2.Sxb2#
- 2.Sc3#
- 1...Rb3
- 2.axb3#
- 1...Rc4
- 2.Sb2#
- 2.Ra3#
- 1...Rd4
- 2.Sb2#
- 2.Sc3#
- 1...Re4
- 2.Sb2#
- 2.Sc3#
- 1...Rf4
- 2.Sb2#
- 2.Sc3#
- 1...Rg4
- 2.Sb2#
- 2.Sc3#
- 1...Rh4
- 2.Sb2#
- 2.Sc3#
- 1...Sd8
- 2.Sc5#
- 1...Sb6
- 2.Sxb6#
- 1...Sa7
- 2.Sb6#
- 1...Se7
- 2.Sb6#
- 1...Qxc6!
- 1...Sbxd6
- 1.Be7?
- 1...Sxe7
- 2.Sb6#
- 1...Sc5
- 2.Sxc5#
- 1...Rb1
- 2.Sc3#
- 1...Rb2
- 2.Sxb2#
- 2.Sc3#
- 1...Rb3
- 2.axb3#
- 1...Rc4
- 2.Sb2#
- 2.Ra3#
- 1...Rd4
- 2.Sb2#
- 2.Sc3#
- 1...Re4
- 2.Sb2#
- 2.Sc3#
- 1...Rf4
- 2.Sb2#
- 2.Sc3#
- 1...Rg4
- 2.Sb2#
- 2.Sc3#
- 1...Rh4
- 2.Sb2#
- 2.Sc3#
- 1...Sbd6
- 2.Sc5#
- 1...Sd8
- 2.Sc5#
- 1...Sb6
- 2.Sxb6#
- 1...Scd6
- 2.Sb6#
- 1...Sa7
- 2.Sb6#
- 1...Qxc6!
- 1...Sxe7
- 1.Rc2?
- 1...Sc5
- 2.Sxc5#
- 1...Rb1
- 2.Sc3#
- 1...Rb2
- 2.Sxb2#
- 2.Sc3#
- 1...Rb3
- 2.axb3#
- 1...Rc4
- 2.Sb2#
- 2.Rxc4#
- 2.Ra3#
- 1...Rd4
- 2.Sb2#
- 2.Sc3#
- 1...Re4
- 2.Sb2#
- 2.Sc3#
- 1...Rf4
- 2.Sb2#
- 2.Sc3#
- 1...Rg4
- 2.Sb2#
- 2.Sc3#
- 1...Rh4
- 2.Sb2#
- 2.Sc3#
- 1...Sbd6
- 2.Sc5#
- 1...Sd8
- 2.Sc5#
- 1...Sb6
- 2.Sxb6#
- 1...Scd6
- 2.Sb6#
- 1...Sa7
- 2.Sb6#
- 1...Se7
- 2.Sb6#
- 1...Qxc6!
- 1...Sc5
- 1.Ke1?
- Keys
- 1.Rb2!
- threat
- 2.Rxb4#
- 1...Rxb2+
- 2.Sxb2#
- 1...Sc5
- 2.Sxc5#
- 1...Rb3
- 2.axb3#
- 1...Rc4
- 2.Ra3#
- 1...Rd4
- 2.Sc3#
- 1...Re4
- 2.Sc3#
- 1...Rf4
- 2.Sc3#
- 1...Rg4
- 2.Sc3#
- 1...Rh4
- 2.Sc3#
- 1...Sbd6
- 2.Sc5#
- 1...Scd6
- 2.Sb6#
- 1...Se7
- 2.Sb6#
- threat
- 1.Rb2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 4
- Sets
- R(b);::S(A)
- R(b);OGATE::P(B),XR(b)
- S(f);N_GUARD::S(H),XS(f)
- S(f);N_GUARD::S(H)
- S(g);N_GUARD::S(H),XS(g)
- S(g);N_GUARD::S(H)
- Tries
- Try
- K(D);N_SPINR(E),P-FLIGHT
- Vars
- R(b);P_PINS(A)::R1(E)
- R(b);OGATE::P(B),XR(b)
- S(f);N_GUARD::S(H),XS(f)
- S(f);N_GUARD::S(H)
- S(g);N_GUARD::S(H),XS(g)
- S(g);N_GUARD::S(H)
- Refutation
- Q(d);N_SPINQ(d),XB(G)
- Try
- B(I);
- Vars
- S(f);N_GUARD,XB(I)::S(H)
- S(g);N_GUARD,XB(I)::S(H)
- S(f);N_GUARD::S(H),XS(f)
- R(b);::S(A)
- R(b);OGATE::P(B),XR(b)
- S(f);N_GUARD::S(H)
- S(g);N_GUARD::S(H),XS(g)
- S(g);N_GUARD::S(H)
- Refutation
- Q(d);N_PINR(E),N_SPINQ(d),XB(G)
- Try
- B(I);
- Vars
- S(g);N_GUARD,XB(I)::S(H)
- S(f);N_GUARD::S(H),XS(f)
- R(b);::S(A)
- R(b);OGATE::P(B),XR(b)
- S(f);N_GUARD::S(H)
- S(g);N_GUARD::S(H),XS(g)
- S(g);N_GUARD::S(H)
- Refutation
- Q(d);N_PINR(E),N_SPINQ(d),XB(G)
- Try
- R(C);
- Vars
- S(f);N_GUARD::S(H),XS(f)
- R(b);::S(A)
- R(b);OGATE::P(B),XR(b)
- S(f);N_GUARD::S(H)
- S(g);N_GUARD::S(H),XS(g)
- S(g);N_GUARD::S(H)
- Refutation
- Q(d);N_PINR(E),N_SPINQ(d),XB(G)
- Try
- Actual
- R(C);
- Threat
- R1(C),XR(b)
- Vars
- R(b);CHECK,XR(C)::S(A),XR(b)
- S(f);N_GUARD::S(H),XS(f)
- R(b);OGATE::P(B),XR(b)
- R(b);N_PINR(E)::R1(E)
- R(b);::S(A)
- R(b);P_PINP(F)::S(A)
- R(b);SBLOCK::S(A)
- S(f);N_GUARD::S(H)
- S(g);N_GUARD::S(H)
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