MESON Chess Problem Database
Problem Display
PID: 149346 (8/8/3p3p/pp1P3P/k6K/2Q4R/r7/n7 w - - 0 1)
Dawson, Thomas Rayner
Chess Amateur (The), 1921
#2
5 + 7
| 15256 | TRD Scrapbook | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Rb2
- 2.Qa3#
- 1...Rc2
- 2.Qa3#
- 1...Rd2
- 2.Qa3#
- 1...Re2
- 2.Qa3#
- 1...Rf2
- 2.Qa3#
- 1...Rg2
- 2.Qa3#
- 1...Rh2
- 2.Qa3#
- 1...Ra3
- 2.Qxa3#
- 1...Sc2
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...b4
- 2.Qc6#
- 1...Rb2
- Tries
- 1.Kg4?
- 1...Sb3
- 2.Qxb3#
- 1...b4
- 2.Qc6#
- 1...Rb2
- 2.Qa3#
- 1...Rc2
- 2.Qa3#
- 1...Rd2
- 2.Qa3#
- 1...Re2
- 2.Qa3#
- 1...Rf2
- 2.Qa3#
- 1...Rh2
- 2.Qa3#
- 1...Ra3
- 2.Qxa3#
- 1...Sc2
- 2.Qb3#
- 1...Rg2+!
- 1...Sb3
- 1.Rd3?
- 1...Sb3
- 2.Qxb3#
- 1...b4
- 2.Qc6#
- 1...Rb2
- 2.Qa3#
- 1...Rc2
- 2.Qa3#
- 1...Rd2
- 2.Qa3#
- 1...Re2
- 2.Qa3#
- 1...Rf2
- 2.Qa3#
- 1...Rg2
- 2.Qa3#
- 1...Ra3
- 2.Qxa3#
- 1...Sc2
- 2.Qb3#
- 1...Rh2+!
- 1...Sb3
- 1.Re3?
- 1...Sb3
- 2.Qxb3#
- 1...b4
- 2.Qc6#
- 1...Rb2
- 2.Qa3#
- 1...Rc2
- 2.Qa3#
- 1...Rd2
- 2.Qa3#
- 1...Re2
- 2.Qa3#
- 1...Rf2
- 2.Qa3#
- 1...Rg2
- 2.Qa3#
- 1...Ra3
- 2.Qxa3#
- 1...Sc2
- 2.Qb3#
- 1...Rh2+!
- 1...Sb3
- 1.Rf3?
- 1...Sb3
- 2.Qxb3#
- 1...b4
- 2.Qc6#
- 1...Rb2
- 2.Qa3#
- 1...Rc2
- 2.Qa3#
- 1...Rd2
- 2.Qa3#
- 1...Re2
- 2.Qa3#
- 1...Rf2
- 2.Qa3#
- 1...Rg2
- 2.Qa3#
- 1...Ra3
- 2.Qxa3#
- 1...Sc2
- 2.Qb3#
- 1...Rh2+!
- 1...Sb3
- 1.Rg3?
- 1...Sb3
- 2.Qxb3#
- 1...b4
- 2.Qc6#
- 1...Rb2
- 2.Qa3#
- 1...Rc2
- 2.Qa3#
- 1...Rd2
- 2.Qa3#
- 1...Re2
- 2.Qa3#
- 1...Rf2
- 2.Qa3#
- 1...Rg2
- 2.Qa3#
- 1...Ra3
- 2.Qxa3#
- 1...Sc2
- 2.Qb3#
- 1...Rh2+!
- 1...Sb3
- 1.Qd3?
- 1...Kb4
- 2.Qd4#
- 1...Sb3
- 2.Qxb3#
- 1...Rb2
- 2.Qa3#
- 1...Rc2
- 2.Qa3#
- 1...Rd2
- 2.Qa3#
- 1...Re2
- 2.Qa3#
- 1...Rf2
- 2.Qa3#
- 1...Rg2
- 2.Qa3#
- 1...Rh2
- 2.Qa3#
- 1...Ra3
- 2.Qxa3#
- 1...Sc2
- 2.Qb3#
- 1...b4!
- 1...Kb4
- 1.Qc4+?
- 1...b4
- 2.Qc6#
- 1...bxc4!
- 1...b4
- 1.Kg4?
- Keys
- 1.Qe3!
- 1...Kb4
- 2.Qd4#
- 1...Sb3
- 2.Qxb3#
- 1...b4
- 2.Qe8#
- 1...Rb2
- 2.Qa3#
- 1...Rc2
- 2.Qa3#
- 1...Rd2
- 2.Qa3#
- 1...Re2
- 2.Qa3#
- 1...Rf2
- 2.Qa3#
- 1...Rg2
- 2.Qa3#
- 1...Rh2
- 2.Qa3#
- 1...Ra3
- 2.Qxa3#
- 1...Sc2
- 2.Qb3#
- 1...Kb4
- 1.Qe3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD::QAR1(A)
- R(b);N_GUARD,P_PINR(B)::QAR1(A)
- R(b);N_GUARD::QAR1(A),XR(b)
- S(a);N_GUARD::QAB1(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- P(e);OGATEB,SBLOCK::QAB(A)
- Tries
- Try
- K(C);P-FLIGHT
- Vars
- S(a);N_GUARD::QAB1(A),XS(a)
- P(e);OGATEB,SBLOCK::QAB(A)
- R(b);N_GUARD::QAR1(A)
- R(b);N_GUARD::QAR1(A),XR(b)
- S(a);N_GUARD::QAB1(A)
- Refutation
- R(b);CHECK
- Try
- R(B);
- Vars
- S(a);N_GUARD::QAB1(A),XS(a)
- P(e);OGATEB,SBLOCK::QAB(A)
- R(b);N_GUARD::QAR1(A)
- R(b);N_GUARD::QAR1(A),XR(b)
- S(a);N_GUARD::QAB1(A)
- Refutation
- R(b);CHECK
- Try
- R(B);
- Vars
- S(a);N_GUARD::QAB1(A),XS(a)
- P(e);OGATEB,SBLOCK::QAB(A)
- R(b);N_GUARD::QAR1(A)
- R(b);N_GUARD::QAR1(A),XR(b)
- S(a);N_GUARD::QAB1(A)
- Refutation
- R(b);CHECK
- Try
- R(B);
- Vars
- S(a);N_GUARD::QAB1(A),XS(a)
- P(e);OGATEB,SBLOCK::QAB(A)
- R(b);N_GUARD::QAR1(A)
- R(b);N_GUARD::QAR1(A),XR(b)
- S(a);N_GUARD::QAB1(A)
- Refutation
- R(b);CHECK
- Try
- R(B);
- Vars
- S(a);N_GUARD::QAB1(A),XS(a)
- P(e);OGATEB,SBLOCK::QAB(A)
- R(b);N_GUARD::QAR1(A)
- R(b);N_GUARD::QAR1(A),XR(b)
- S(a);N_GUARD::QAB1(A)
- Refutation
- R(b);CHECK
- Try
- Q(A);
- Vars
- K(c);P-FLIGHT::QAR2(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- R(b);N_GUARD::QAR1(A)
- R(b);N_GUARD,P_PINR(B)::QAR1(A)
- R(b);N_GUARD::QAR1(A),XR(b)
- S(a);N_GUARD::QAB1(A)
- Refutation
- P(e);
- Try
- Q(A);CHECK
- Vars
- P(e);OGATEB,P_SPINP(e),SBLOCK::QAB(A)
- Refutation
- P(e);XQ(A)
- Try
- Actual
- Q(A);
- Vars
- K(c);P-FLIGHT::QAR2(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- P(e);OGATEB,SBLOCK::QAB(A)
- R(b);N_GUARD::QAR1(A)
- R(b);N_GUARD,P_PINR(B)::QAR1(A)
- R(b);N_GUARD::QAR1(A),XR(b)
- S(a);N_GUARD::QAB1(A)
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