MESON Chess Problem Database
Problem Display
PID: 52265 (8/4p3/4Kn2/5R2/1RNkpP2/Q1n2qp1/6p1/B5N1 w - - 0 1)
Alvey, George Clarence Vincent
British Chess Magazine, 1922
#2
8 + 8
| 5293 | A selection of chess problems by G. C. Alvey | 2004 |
| 15148 | Sadier Collection | 2015 |
SOLUTION
- SOUND
- Sets
- 1...Kd3
- 2.Qxc3#
- 1...Qd1
- 2.Qxc3#
- 1...Qe2
- 2.Qxc3#
- 1...Qg4
- 2.Qxc3#
- 1...Qh5
- 2.Qxc3#
- 1...Qf1
- 2.Qxc3#
- 1...Qf2
- 2.Qxc3#
- 1...Qd3
- 2.Qa7#
- 1...Qe3
- 2.Sb2#
- 1...Qxf4
- 2.Qxc3#
- 1...Sg4
- 2.Rd5#
- 1...Sd5
- 2.Rxd5#
- 1...Sh5
- 2.Rd5#
- 1...Sd7
- 2.Rd5#
- 1...Sh7
- 2.Rd5#
- 1...Se8
- 2.Rd5#
- 1...Sg8
- 2.Rd5#
- 1...e3
- 2.Sb2#
- 1...Kd3
- Tries
- 1.Se2+?
- 1...Qxe2
- 2.Qxc3#
- 1...Kd3!
- 1...Qxe2
- 1.Sd2+?
- 1...Kd3
- 2.Qxc3#
- 1...Ke3!
- 1...Kd3
- 1.Se3+?
- 1...Kd3
- 2.Qxc3#
- 1...Kxe3!
- 1...Kd3
- 1.Sa5+?
- 1...Kd3
- 2.Qxc3#
- 1...Ke3!
- 1...Kd3
- 1.Sb6+?
- 1...Kd3
- 2.Qxc3#
- 1...Ke3!
- 1...Kd3
- 1.Sd6+?
- 1...Kd3
- 2.Qxc3#
- 1...Ke3!
- 1...Kd3
- 1.Rfb5?
- 1...Kd3
- 2.Qxc3#
- 1...Qxf4
- 2.Qxc3#
- 1...e3
- 2.Sb2#
- 2.Se5#
- 1...Qd1
- 2.Qxc3#
- 1...Qe2
- 2.Qxc3#
- 1...Qh5
- 2.Qxc3#
- 1...Qf1
- 2.Qxc3#
- 1...Qf2
- 2.Qxc3#
- 1...Qd3
- 2.Qa7#
- 1...Qe3
- 2.Sb2#
- 2.Se5#
- 1...Sg4
- 2.Rd5#
- 1...Sd5
- 2.Rxd5#
- 1...Sh5
- 2.Rd5#
- 1...Sd7
- 2.Rd5#
- 1...Sh7
- 2.Rd5#
- 1...Se8
- 2.Rd5#
- 1...Sg8
- 2.Rd5#
- 1...Qg4+!
- 1...Kd3
- 1.Re5?
- 1...Kd3
- 2.Qxc3#
- 1...Qxf4
- 2.Qxc3#
- 1...Sd5
- 2.Rxd5#
- 1...Qd1
- 2.Qxc3#
- 1...Qe2
- 2.Qxc3#
- 1...Qh5
- 2.Qxc3#
- 1...Qf1
- 2.Qxc3#
- 1...Qf2
- 2.Qxc3#
- 1...Qd3
- 2.Qa7#
- 1...Qe3
- 2.Sb2#
- 1...Sg4
- 2.Rd5#
- 1...Sh5
- 2.Rd5#
- 1...Sd7
- 2.Rd5#
- 1...Sh7
- 2.Rd5#
- 1...Se8
- 2.Rd5#
- 1...Sg8
- 2.Rd5#
- 1...e3
- 2.Sb2#
- 2.Qxc3#
- 1...Qg4+!
- 1...Kd3
- 1.Rg5?
- 1...Kd3
- 2.Qxc3#
- 1...Qxf4
- 2.Qxc3#
- 1...Sd5
- 2.Rxd5#
- 1...e3
- 2.Sb2#
- 1...Qd1
- 2.Qxc3#
- 1...Qe2
- 2.Qxc3#
- 1...Qh5
- 2.Qxc3#
- 1...Qf1
- 2.Qxc3#
- 1...Qf2
- 2.Qxc3#
- 1...Qd3
- 2.Qa7#
- 1...Qe3
- 2.Sb2#
- 1...Sg4
- 2.Rd5#
- 1...Sh5
- 2.Rd5#
- 1...Sd7
- 2.Rd5#
- 1...Sh7
- 2.Rd5#
- 1...Se8
- 2.Rd5#
- 1...Sg8
- 2.Rd5#
- 1...Qg4+!
- 1...Kd3
- 1.Qc1?
- threat
- 2.Sb2#
- 1...Kd3
- 2.Sb2#
- 2.Se5#
- 2.Qd2#
- 2.Qxc3#
- 1...Sd5
- 2.Rxd5#
- 1...Qe2
- 2.Qxc3#
- 1...Qf1
- 2.Qe3#
- 2.Qxc3#
- 1...Qd3!
- threat
- 1.Qb3?
- 1...Kd3
- 2.Qxc3#
- 1...Qxf4
- 2.Qxc3#
- 1...Sd5
- 2.Rxd5#
- 1...e3
- 2.Sb2#
- 1...Qd1
- 2.Qxd1#
- 2.Qxc3#
- 1...Qe2
- 2.Qxc3#
- 1...Qg4
- 2.Qxc3#
- 1...Qh5
- 2.Qxc3#
- 1...Qf1
- 2.Qxc3#
- 1...Qf2
- 2.Qxc3#
- 1...Qe3
- 2.Sb2#
- 1...Sg4
- 2.Rd5#
- 1...Sh5
- 2.Rd5#
- 1...Sd7
- 2.Rd5#
- 1...Sh7
- 2.Rd5#
- 1...Se8
- 2.Rd5#
- 1...Sg8
- 2.Rd5#
- 1...Qd3!
- 1...Kd3
- 1.Se2+?
- Keys
- 1.Ra4!
- 1...Kd3
- 2.Qxc3#
- 1...Qxf4
- 2.Qxc3#
- 1...e3
- 2.Se5#
- 1...Qd1
- 2.Qxc3#
- 1...Qe2
- 2.Qxc3#
- 1...Qg4
- 2.Qxc3#
- 1...Qh5
- 2.Qxc3#
- 1...Qf1
- 2.Qxc3#
- 1...Qf2
- 2.Qxc3#
- 1...Qd3
- 2.Qc5#
- 1...Qe3
- 2.Se5#
- 1...Sg4
- 2.Rd5#
- 1...Sd5
- 2.Rxd5#
- 1...Sh5
- 2.Rd5#
- 1...Sd7
- 2.Rd5#
- 1...Sh7
- 2.Rd5#
- 1...Se8
- 2.Rd5#
- 1...Sg8
- 2.Rd5#
- 1...Kd3
- 1.Ra4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(e);P-FLIGHT::QAR1(C),XS(b)
- Q(c);N_GUARD::QAB1(C),XS(b)
- Q(c);N_GUARD,P_PINR(G)::QAB1(C),XS(b)
- Q(c);SBLOCK::QAB(C)
- Q(c);SBLOCK::R(D)+S(E)
- Q(c);N_GUARD,XP(F)::QAB1(C),XS(b)
- S(g);N_GUARD::R1(G)
- S(g);N_GUARD::R1(G),XS(g)
- P(f);SBLOCK::R(D)+S(E)
- Tries
- Try
- S(B);CHECK
- Vars
- Q(c);XS(B)::QAB1(C),XS(b)
- Refutation
- K(e);P-FLIGHT
- Try
- S(E);CHECK
- Vars
- K(e);P-FLIGHT::QAR1(C),XS(b)
- Refutation
- K(e);S_FLIGHT
- Try
- S(E);CHECK
- Vars
- K(e);P-FLIGHT::QAR1(C),XS(b)
- Refutation
- K(e);S_FLIGHT,XS(E)
- Try
- S(E);CHECK
- Vars
- K(e);P-FLIGHT::QAR1(C),XS(b)
- Refutation
- K(e);S_FLIGHT
- Try
- S(E);CHECK
- Vars
- K(e);P-FLIGHT::QAR1(C),XS(b)
- Refutation
- K(e);S_FLIGHT
- Try
- S(E);CHECK
- Vars
- K(e);P-FLIGHT::QAR1(C),XS(b)
- Refutation
- K(e);S_FLIGHT
- Try
- R(G);
- Vars
- K(e);P-FLIGHT::QAR1(C),XS(b)
- Q(c);N_GUARD,XP(F)::QAB1(C),XS(b)
- Q(c);N_GUARD::QAB1(C),XS(b)
- Q(c);SBLOCK::QAB(C)
- S(g);N_GUARD::R1(G)
- S(g);N_GUARD::R1(G),XS(g)
- Refutation
- Q(c);CHECK
- Try
- R(G);
- Vars
- K(e);P-FLIGHT::QAR1(C),XS(b)
- Q(c);N_GUARD,XP(F)::QAB1(C),XS(b)
- S(g);N_GUARD::R1(G),XS(g)
- Q(c);N_GUARD::QAB1(C),XS(b)
- Q(c);SBLOCK::QAB(C)
- Q(c);SBLOCK::R(D)+S(E)
- S(g);N_GUARD::R1(G)
- Refutation
- Q(c);CHECK
- Try
- R(G);
- Vars
- K(e);P-FLIGHT::QAR1(C),XS(b)
- Q(c);N_GUARD,XP(F)::QAB1(C),XS(b)
- S(g);N_GUARD::R1(G),XS(g)
- P(f);SBLOCK::R(D)+S(E)
- Q(c);N_GUARD::QAB1(C),XS(b)
- Q(c);SBLOCK::QAB(C)
- Q(c);SBLOCK::R(D)+S(E)
- S(g);N_GUARD::R1(G)
- Refutation
- Q(c);CHECK
- Try
- Q(C);
- Threat
- R(D)+S(E)
- Vars
- S(g);N_GUARD::R1(G),XS(g)
- Q(c);N_GUARD::QAB1(C),XS(b)
- Refutation
- Q(c);
- Try
- Q(C);
- Vars
- K(e);P-FLIGHT::QAR1(C),XS(b)
- Q(c);N_GUARD,XP(F)::QAB1(C),XS(b)
- S(g);N_GUARD::R1(G),XS(g)
- P(f);SBLOCK::R(D)+S(E)
- Q(c);N_GUARD::QAB1(C),XS(b)
- Q(c);N_GUARD,P_PINR(G)::QAB1(C),XS(b)
- Q(c);SBLOCK::R(D)+S(E)
- S(g);N_GUARD::R1(G)
- Refutation
- Q(c);
- Try
- Actual
- R(D);
- Vars
- K(e);P-FLIGHT::QAR1(C),XS(b)
- Q(c);N_GUARD,XP(F)::QAB1(C),XS(b)
- P(f);SBLOCK::R(D)+S(E)
- Q(c);N_GUARD::QAB1(C),XS(b)
- Q(c);N_GUARD,P_PINR(G)::QAB1(C),XS(b)
- Q(c);SBLOCK::QAB1(C)
- Q(c);SBLOCK::R(D)+S(E)
- S(g);N_GUARD::R1(G)
- S(g);N_GUARD::R1(G),XS(g)
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