MESON Chess Problem Database
Problem Display
PID: 166504 (B3NN2/1r1R4/pb3Rnr/2k2p2/K3nQ2/1Pp4q/3p4/7b w - - 0 1)
Alvey, George Clarence Vincent
Western Daily Mercury, 1909
#2
8 + 12
| 56 | The Problemist | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.Qe3#
- 1...Qg2
- 2.Qe3#
- 1...Qg4
- 2.Qe3#
- 1...Qh2
- 2.Qe3#
- 1...Qe3
- 2.Qxe3#
- 1...Qh4
- 2.Qe3#
- 1...Qh5
- 2.Qe3#
- 1...Ra7
- 2.Se6#
- 2.Rc6#
- 2.Rd5#
- 1...Rc7
- 2.Se6#
- 2.Rd5#
- 1...Rxd7
- 2.Se6#
- 1...Rb8
- 2.Se6#
- 2.Rc6#
- 2.Rd5#
- 1...Bf3
- 2.Qe3#
- 1...Sf2
- 2.Qd6#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 2.b4#
- 1...Sg3
- 2.Qe3#
- 2.Qd6#
- 2.Qf2#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 2.b4#
- 1...Sg5
- 2.Qd6#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 2.b4#
- 1...Sd6
- 2.Qxd6#
- 1...Sxf6
- 2.Qd6#
- 2.Qc4#
- 1...Sh4
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sxf8
- 2.Qe5#
- 1...Sh8
- 2.Qe5#
- 1...Qf1
- Tries
- 1.Bxb7?
- threat
- 2.Se6#
- 2.Rc6#
- 2.Rd5#
- 1...Sxf6
- 2.Se6#
- 2.Qd6#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 2.b4#
- 1...Sxf8
- 2.Rd5#
- 2.Qe5#
- 1...d1Q
- 2.Se6#
- 2.Rc6#
- 1...d1R
- 2.Se6#
- 2.Rc6#
- 1...Qd3
- 2.Se6#
- 2.Rc6#
- 1...Ba5
- 2.Rc6#
- 2.Rd5#
- 1...Ba7
- 2.Rc6#
- 2.Rd5#
- 2.Qc7#
- 1...Bc7
- 2.Rc6#
- 2.Rd5#
- 2.Qxc7#
- 1...Bd8
- 2.Rc6#
- 2.Rd5#
- 1...Sf2
- 2.Se6#
- 2.Qd6#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 2.b4#
- 1...Sg3
- 2.Se6#
- 2.Qe3#
- 2.Qd6#
- 2.Qf2#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 2.b4#
- 1...Sg5
- 2.Qd6#
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 2.b4#
- 1...Sd6
- 2.Se6#
- 2.Qxd6#
- 2.Qb4#
- 2.b4#
- 1...Sh4
- 2.Se6#
- 2.Rd5#
- 2.Qe5#
- 1...Se5
- 2.Se6#
- 2.Rd5#
- 2.Qxe5#
- 1...Se7
- 2.Se6#
- 1...Sh8
- 2.Se6#
- 2.Rd5#
- 2.Qe5#
- 1...Sxf4!
- threat
- 1.Rdd6?
- threat
- 2.Se6#
- 1...Sxd6
- 2.Qxd6#
- 1...Sxf8
- 2.Qe5#
- 1...Re7
- 2.Rd5#
- 1...Sg5
- 2.Qb4#
- 2.Qc4#
- 2.Qd4#
- 2.b4#
- 1...Sxf4!
- threat
- 1.Qc7+?
- 1...Rxc7
- 2.Se6#
- 2.Rd5#
- 1...Bxc7!
- 1...Rxc7
- 1.Qf2+?
- 1...Qe3
- 2.Qxe3#
- 1...Sxf2!
- 1...Qe3
- 1.Qxf5+?
- 1...Se5
- 2.Qxe5#
- 1...Qxf5!
- 1...Se5
- 1.Bxb7?
- Keys
- 1.Sd6!
- threat
- 2.Sxb7#
- 1...Kd4
- 2.Sxb7#
- 1...Kd5
- 2.Sxe4#
- 1...Kc6
- 2.Sxe4#
- 1...Rxd7
- 2.Se6#
- 1...Sxd6
- 2.Qxd6#
- 1...Sxf6
- 2.Qc4#
- 1...Ra7
- 2.Se6#
- 1...Rc7
- 2.Se6#
- 1...Rb8
- 2.Se6#
- 1...Sf2
- 2.Qc4#
- 1...Sg3
- 2.Qc4#
- 1...Sg5
- 2.Qc4#
- threat
- 1.Sd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 12
- Sets
- Q(d);N_GUARD::QAB(C)
- Q(d);N_GUARD::QAB(C),XQ(d)
- R(l);XR(E)::S(H)
- B(a);S_CUTQ(d)::QAB(C)
- S(e);N_GUARD::QAB1(C),XS(e)
- S(j);N_GUARD::QAR2(C)
- S(j);N_GUARD::QAR2(C),XS(j)
- S(j);N_GUARD,XS(H)::QAR2(C)
- Tries
- Try
- B(F);XR(l)
- Threat
- DUALS(3)
- Vars
- S(j);::S(H)
- Refutation
- S(j);XQ(C)
- Try
- R(E);
- Threat
- S(H)
- Vars
- S(e);OGATE,XR(E)::QAB1(C),XS(e)
- S(j);N_GUARD,XS(H)::QAR2(C)
- R(l);::R1(E)
- Refutation
- S(j);XQ(C)
- Try
- Q(C);CHECK
- Refutation
- B(i);XQ(C)
- Try
- Q(C);CHECK
- Vars
- Q(d);N_GUARD,P_SPINQ(d)::QAB(C),XQ(d)
- Refutation
- S(e);XQ(C)
- Try
- Q(C);CHECK,XP(g)
- Vars
- S(j);N_GUARD,P_SPINS(j)::QAR2(C),XS(j)
- Refutation
- Q(d);XQ(C)
- Try
- Actual
- S(G);
- Threat
- S(G),XR(l)
- Vars
- K(f);P_SPINS(e),S_FLIGHT::R(E)+S(G),XR(l)
- K(f);P-FLIGHT,P_SPINR(l)::R(E)+S(G),XS(e)
- K(f);P-FLIGHT,P_SPINR(l)::R(D)+S(G),XS(e)
- R(l);XR(E)::S(H)
- S(e);OGATE,XS(G)::QAB1(C),XS(e)
- S(e);OGATE,XR(D)::QAR1(C)
- R(l);::S(H)
- S(e);OGATE::QAR1(C)
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