MESON Chess Problem Database
Problem Display
PID: 147996 (n6B/1b1BKn2/4R3/3k1p2/N5N1/1r1P1r2/1P1R3p/Q7 w - - 0 1)
Allison, Christopher John
4th Prize, BCF 083. Ty., 1956-1957
#2
10 + 8
| 14869 | British Championship Solving Ty. | 2013 |
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Rbxd3
- 2.Qa2#
- 1...Rf1
- 2.Se3#
- 1...Rf2
- 2.Se3#
- 1...Rfxd3
- 2.Se3#
- 1...Re3
- 2.Sxe3#
- 1...Rf4
- 2.Se3#
- 1...Ba6
- 2.Bc6#
- 1...Bc6
- 2.Bxc6#
- 1...Bc8
- 2.Bc6#
- 1...Se5
- 2.Rd6#
- 1...Sg5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Sh6
- 2.Rd6#
- 1...Sd8
- 2.Rd6#
- 1...Sxh8
- 2.Rd6#
- 1...Rbxd3
- Tries
- 1.Re4?
- threat
- 2.Sf6#
- 2.Rd4#
- 1...Rbxd3
- 2.Sf6#
- 1...Rfxd3
- 2.Sf6#
- 1...Sxh8
- 2.Sf6#
- 1...fxg4
- 2.Rd4#
- 1...Rb4
- 2.Sf6#
- 1...Rb6
- 2.Rd4#
- 1...Re3
- 2.Sxe3#
- 2.Sf6#
- 1...Rf4
- 2.Se3#
- 2.Sf6#
- 1...Se5
- 2.Sf6#
- 1...fxe4!
- threat
- 1.Qc1?
- threat
- 2.Qc4#
- 2.Qc5#
- 1...Rbxd3
- 2.Qc5#
- 1...Rfxd3
- 2.Se3#
- 2.Qc5#
- 1...Se5
- 2.Rd6#
- 2.Qc5#
- 1...Rb4
- 2.Qc5#
- 1...Rb5
- 2.Qc4#
- 1...Rf4
- 2.Se3#
- 2.Qc5#
- 1...Ba6
- 2.Bc6#
- 2.Qc5#
- 2.Qc6#
- 1...Sd6
- 2.Rxd6#
- 2.Qc5#
- 1...Sb6
- 2.Qc5#
- 1...Rc3!
- threat
- 1.Qd1?
- threat
- 2.Qxb3#
- 2.Qxf3#
- 1...Rxb2
- 2.Qxf3#
- 1...Rbxd3
- 2.Qb3#
- 1...Rfxd3
- 2.Se3#
- 2.Qxb3#
- 1...Sxh8
- 2.Rd6#
- 1...fxg4
- 2.Qxb3#
- 1...Se5
- 2.Rd6#
- 1...h1Q
- 2.Qxb3#
- 1...h1B
- 2.Qxb3#
- 1...Rc3
- 2.Qxf3#
- 1...Ra3
- 2.Qxf3#
- 1...Rb5
- 2.Qxf3#
- 1...Rb6
- 2.Qxf3#
- 1...Rf1
- 2.Se3#
- 2.Qxb3#
- 1...Rf2
- 2.Se3#
- 2.Qxb3#
- 1...Re3
- 2.Sxe3#
- 2.Qxb3#
- 1...Rg3
- 2.Qxb3#
- 1...Rh3
- 2.Qxb3#
- 1...Rf4
- 2.Se3#
- 1...Ba6
- 2.Bc6#
- 2.Qxf3#
- 1...Sg5
- 2.Rd6#
- 2.Qxb3#
- 1...Sd6
- 2.Rxd6#
- 1...Sb6
- 2.Qxf3#
- 1...Rb4!
- threat
- 1.Qh1?
- threat
- 2.Se3#
- 2.Qxf3#
- 1...Rxd3
- 2.Se3#
- 1...Sxh8
- 2.Rd6#
- 1...Se5
- 2.Rd6#
- 1...Rb4
- 2.Se3#
- 1...Sg5
- 2.Se3#
- 2.Rd6#
- 1...Sd6
- 2.Se3#
- 2.Rxd6#
- 1...f4
- 2.Qxf3#
- 1...fxg4!
- threat
- 1.Qa2?
- threat
- 2.Qxb3#
- 1...Sxh8
- 2.Rd6#
- 1...Se5
- 2.Rd6#
- 1...Rf4
- 2.Se3#
- 1...Ba6
- 2.Bc6#
- 1...Sd6
- 2.Rxd6#
- 1...Sb6!
- threat
- 1.Re4?
- Keys
- 1.Rc6!
- threat
- 2.Rc5#
- 1...Re3+
- 2.Sxe3#
- 1...Rbxd3
- 2.Sc3#
- 1...Rfxd3
- 2.Qh1#
- 1...Bxc6
- 2.Be6#
- 1...Sxh8
- 2.Rd6#
- 1...Se5
- 2.Rd6#
- 1...Rc3
- 2.Sxc3#
- 1...Rb5
- 2.Sc3#
- threat
- 1.Rc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- R(b);OGATEB,P_SPINR(b),XP(D)::QAB(A)
- R(c);N_GUARD::S(F)
- R(c);N_GUARD,P_SPINR(c),XP(D)::S(F)
- R(c);N_GUARD,P_PINR(G)::S(F),XR(c)
- B(f);N_GUARD::B(H)
- B(f);N_GUARD::B(H),XB(f)
- S(g);N_GUARD::R1(G)
- S(g);N_GUARD::R1(G),XS(g)
- S(g);N_GUARD,XB(J)::R1(G)
- Tries
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- R(b);P_SPINR(b),XP(D)::S(F)
- R(c);P_SPINR(c),XP(D)::S(F)
- S(g);XB(J)::S(F)
- P(e);XS(F)::R1(G)
- R(b);::S(F)
- R(b);::R1(G)
- S(g);::S(F)
- Refutation
- P(e);XR(G)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(b);P_SPINR(b),XP(D)::QAR1(A)
- R(b);::QAR1(A)
- R(b);::QAB1(A)
- S(h);::QAR1(A)
- Refutation
- R(b);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(b);XP(B)::QAB(A),XR(c)
- R(b);P_SPINR(b),XP(D)::QAB(A)
- S(g);N_GUARD,XB(J)::R1(G)
- P(e);XS(F)::QAB(A),XR(b)
- S(g);N_GUARD::R1(G)
- P(a);::QAB(A),XR(b)
- R(b);::QAB(A),XR(c)
- R(c);::QAB(A),XR(b)
- R(c);N_GUARD::S(F)
- S(g);N_GUARD::R1(G),XS(g)
- S(h);::QAB(A),XR(c)
- Refutation
- R(b);
- Try
- Q(A);P_PINR(c)
- Threat
- DUALS(2)
- Vars
- R(b);N_SPINR(c),P_SPINR(b),XP(D)::S(F)
- S(g);N_GUARD,XB(J)::R1(G)
- S(g);N_GUARD::R1(G)
- R(b);::S(F)
- P(e);::QAB(A),XR(c)
- Refutation
- P(e);XS(F)
- Try
- Q(A);P_PINR(b)
- Threat
- QAB(A),XR(b)
- Vars
- S(g);N_GUARD,XB(J)::R1(G)
- S(g);N_GUARD::R1(G)
- R(c);N_GUARD::S(F)
- B(f);N_GUARD::B(H)
- S(g);N_GUARD::R1(G),XS(g)
- Refutation
- S(h);
- Try
- Actual
- R(G);
- Threat
- R1(G)
- Vars
- R(c);CHECK,N_GUARD::S(F),XR(c)
- R(b);N_GUARD,P_SPINR(b),XP(D)::S(E)
- R(c);OGATEB,P_SPINR(c),XP(D)::QAB(A)
- B(f);SBLOCK,XR(G)::B(H)
- S(g);N_GUARD,XB(J)::R1(G)
- S(g);N_GUARD::R1(G)
- R(b);N_GUARD::S(E),XR(b)
- R(b);N_GUARD::S(E)
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