MESON Chess Problem Database
Problem Display
PID: 3080 (4n3/7N/1p5Q/1Prpk1p1/p2N4/B4Pp1/8/3RK2R w K - 0 1)
Dawson, Thomas Rayner
Source?, 1918
#2
9 + 8
| 2681 | All Change Here! | 1919 |
SOLUTION
- SOUND
- Sets
- 1...Kf4
- 2.Qxg5#
- 1...Rc1
- 2.Qxg5#
- 1...Rc2
- 2.Qxg5#
- 1...Rc3
- 2.Qxg5#
- 1...Rc4
- 2.Qxg5#
- 1...Rxb5
- 2.Qxg5#
- 1...Rc6
- 2.Qxg5#
- 1...Rc7
- 2.Qxg5#
- 1...Rc8
- 2.Qxg5#
- 1...Sd6
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- 1...Sc7
- 2.Qf6#
- 1...Sg7
- 2.Qf6#
- 1...g2
- 2.Qh2#
- 1...g4
- 2.Rh5#
- 1...Kf4
- Tries
- 1.Kf1?
- 1...Kf4
- 2.Qxg5#
- 1...Rxb5
- 2.Qxg5#
- 1...Sf6
- 2.Qxf6#
- 1...Rc1
- 2.Qxg5#
- 1...Rc2
- 2.Qxg5#
- 1...Rc3
- 2.Qxg5#
- 1...Rc4
- 2.Qxg5#
- 1...Rc6
- 2.Qxg5#
- 1...Rc7
- 2.Qxg5#
- 1...Rc8
- 2.Qxg5#
- 1...Sd6
- 2.Qf6#
- 1...Sc7
- 2.Qf6#
- 1...Sg7
- 2.Qf6#
- 1...g4
- 2.Rh5#
- 1...g2+!
- 1...Kf4
- 1.Ke2?
- 1...Kf4
- 2.Qxg5#
- 1...Rxb5
- 2.Qxg5#
- 1...Sf6
- 2.Qxf6#
- 1...Rc1
- 2.Qxg5#
- 1...Rc3
- 2.Qxg5#
- 1...Rc4
- 2.Qxg5#
- 1...Rc6
- 2.Qxg5#
- 1...Rc7
- 2.Qxg5#
- 1...Rc8
- 2.Qxg5#
- 1...Sd6
- 2.Qf6#
- 1...Sc7
- 2.Qf6#
- 1...Sg7
- 2.Qf6#
- 1...g2
- 2.Qh2#
- 1...g4
- 2.Rh5#
- 1...Rc2+!
- 1...Kf4
- 1.Bb4?
- 1...Kf4
- 2.Qxg5#
- 1...Rxb5
- 2.Qxg5#
- 1...Sf6
- 2.Qxf6#
- 1...Rc1
- 2.Qxg5#
- 1...Rc2
- 2.Qxg5#
- 1...Rc3
- 2.Qxg5#
- 1...Rc4
- 2.Qxg5#
- 1...Rc6
- 2.Qxg5#
- 1...Rc7
- 2.Qxg5#
- 1...Rc8
- 2.Qxg5#
- 1...Sd6
- 2.Qf6#
- 1...Sc7
- 2.Qf6#
- 1...Sg7
- 2.Qf6#
- 1...g2
- 2.Qh2#
- 1...g4
- 2.Rh5#
- 1...a3!
- 1...Kf4
- 1.Bxc5?
- threat
- 2.Qxg5#
- 1...Kf4
- 2.Qxg5#
- 1...Sd6
- 2.Bxd6#
- 2.Qxd6#
- 2.Qf6#
- 1...Sg7
- 2.Bd6#
- 2.Qd6#
- 2.Qf6#
- 1...g4
- 2.Rh5#
- 2.Qe3#
- 2.Qg5#
- 1...bxc5!
- threat
- 1.Rd2?
- 1...Kf4
- 2.Qxg5#
- 1...Rxb5
- 2.Qxg5#
- 1...Sf6
- 2.Qxf6#
- 1...Rc2
- 2.Qxg5#
- 1...Rc3
- 2.Qxg5#
- 1...Rc4
- 2.Qxg5#
- 1...Rc6
- 2.Qxg5#
- 1...Rc7
- 2.Qxg5#
- 1...Rc8
- 2.Qxg5#
- 1...Sd6
- 2.Qf6#
- 1...Sc7
- 2.Qf6#
- 1...Sg7
- 2.Qf6#
- 1...g2
- 2.Qh2#
- 1...g4
- 2.Rh5#
- 1...Rc1+!
- 1...Kf4
- 1.Rd3?
- 1...Kf4
- 2.Qxg5#
- 1...Rxb5
- 2.Qxg5#
- 1...Sf6
- 2.Qxf6#
- 1...Rc2
- 2.Qxg5#
- 1...Rc3
- 2.Qxg5#
- 1...Rc4
- 2.Qxg5#
- 1...Rc6
- 2.Qxg5#
- 1...Rc7
- 2.Qxg5#
- 1...Rc8
- 2.Qxg5#
- 1...Sd6
- 2.Qf6#
- 1...Sc7
- 2.Qf6#
- 1...Sg7
- 2.Qf6#
- 1...g2
- 2.Qh2#
- 1...g4
- 2.Rh5#
- 1...Rc1+!
- 1...Kf4
- 1.Rf1?
- 1...Kf4
- 2.Qxg5#
- 1...Rxb5
- 2.Qxg5#
- 1...Sf6
- 2.Qxf6#
- 1...Rc1
- 2.Qxg5#
- 1...Rc2
- 2.Qxg5#
- 1...Rc3
- 2.Qxg5#
- 1...Rc4
- 2.Qxg5#
- 1...Rc6
- 2.Qxg5#
- 1...Rc7
- 2.Qxg5#
- 1...Rc8
- 2.Qxg5#
- 1...Sd6
- 2.Qf6#
- 1...Sc7
- 2.Qf6#
- 1...Sg7
- 2.Qf6#
- 1...g2
- 2.Qh2#
- 1...g4!
- 1...Kf4
- 1.Rg1?
- 1...Kf4
- 2.Qxg5#
- 1...Rxb5
- 2.Qxg5#
- 1...Sf6
- 2.Qxf6#
- 1...Rc1
- 2.Qxg5#
- 1...Rc2
- 2.Qxg5#
- 1...Rc3
- 2.Qxg5#
- 1...Rc4
- 2.Qxg5#
- 1...Rc6
- 2.Qxg5#
- 1...Rc7
- 2.Qxg5#
- 1...Rc8
- 2.Qxg5#
- 1...Sd6
- 2.Qf6#
- 1...Sc7
- 2.Qf6#
- 1...Sg7
- 2.Qf6#
- 1...g2
- 2.Qh2#
- 1...g4!
- 1...Kf4
- 1.Rh2?
- 1...Kf4
- 2.Qxg5#
- 1...Rxb5
- 2.Qxg5#
- 1...gxh2
- 2.Qxh2#
- 1...Sf6
- 2.Qxf6#
- 1...g4
- 2.Re2#
- 2.Rh5#
- 1...Rc1
- 2.Qxg5#
- 1...Rc2
- 2.Qxg5#
- 1...Rc3
- 2.Qxg5#
- 1...Rc4
- 2.Qxg5#
- 1...Rc6
- 2.Qxg5#
- 1...Rc7
- 2.Qxg5#
- 1...Rc8
- 2.Qxg5#
- 1...Sd6
- 2.Qf6#
- 1...Sc7
- 2.Qf6#
- 1...Sg7
- 2.Qf6#
- 1...g2!
- 1...Kf4
- 1.Rh3?
- 1...Kf4
- 2.Qxg5#
- 1...Rxb5
- 2.Qxg5#
- 1...Sf6
- 2.Qxf6#
- 1...g4
- 2.Rh5#
- 1...Rc1
- 2.Qxg5#
- 1...Rc2
- 2.Qxg5#
- 1...Rc3
- 2.Qxg5#
- 1...Rc4
- 2.Qxg5#
- 1...Rc6
- 2.Qxg5#
- 1...Rc7
- 2.Qxg5#
- 1...Rc8
- 2.Qxg5#
- 1...Sd6
- 2.Qf6#
- 1...Sc7
- 2.Qf6#
- 1...Sg7
- 2.Qf6#
- 1...g2!
- 1...Kf4
- 1.Rh4?
- threat
- 2.Qe6#
- 1...Sf6
- 2.Qxf6#
- 1...g4
- 2.Rh5#
- 1...Rc6
- 2.Qxg5#
- 1...Sc7
- 2.Qf6#
- 1...Sg7
- 2.Qf6#
- 1...gxh4!
- threat
- 1.Rh5?
- 1...Kf4
- 2.Qxg5#
- 1...Rxb5
- 2.Qxg5#
- 1...Sf6
- 2.Qxf6#
- 1...Rc1
- 2.Qxg5#
- 1...Rc2
- 2.Qxg5#
- 1...Rc3
- 2.Qxg5#
- 1...Rc4
- 2.Qxg5#
- 1...Rc6
- 2.Qxg5#
- 1...Rc7
- 2.Qxg5#
- 1...Rc8
- 2.Qxg5#
- 1...Sd6
- 2.Qf6#
- 1...Sc7
- 2.Qf6#
- 1...Sg7
- 2.Qf6#
- 1...g2!
- 1...Kf4
- 1.Qf8?
- 1...Rxb5
- 2.Qf5#
- 1...Sf6
- 2.Qxf6#
- 1...Rc1
- 2.Qf5#
- 1...Rc2
- 2.Qf5#
- 1...Rc3
- 2.Qf5#
- 1...Rc4
- 2.Qf5#
- 1...Rc6
- 2.Qf5#
- 1...Rc7
- 2.Qf5#
- 1...Rc8
- 2.Qf5#
- 1...Sd6
- 2.Qf6#
- 1...Sc7
- 2.Qf6#
- 1...Sg7
- 2.Qf6#
- 1...g4
- 2.Rh5#
- 1...g2!
- 1...Rxb5
- 1.Kf1?
- Keys
- 1.0-0!
- 1...Kf4
- 2.Qxg5#
- 1...Rxb5
- 2.Qxg5#
- 1...Sf6
- 2.Qxf6#
- 1...g2
- 2.Qh2#
- 1...Rc1
- 2.Qxg5#
- 1...Rc2
- 2.Qxg5#
- 1...Rc3
- 2.Qxg5#
- 1...Rc4
- 2.Qxg5#
- 1...Rc6
- 2.Qxg5#
- 1...Rc7
- 2.Qxg5#
- 1...Rc8
- 2.Qxg5#
- 1...Sd6
- 2.Qf6#
- 1...Sc7
- 2.Qf6#
- 1...Sg7
- 2.Qf6#
- 1...g4
- 2.Rfe1#
- 1...Kf4
- 1.0-0!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(e);P_SPINP(f),S_FLIGHT::QAB1(H),XP(f)
- R(c);P_PINR(A)::QAR2(H),XP(f)
- R(c);::QAR2(H),XP(f)
- R(c);XP(G)::QAR2(H),XP(f)
- S(h);N_GUARD::QAB1(H)
- S(h);N_GUARD::QAB1(H),XS(h)
- P(a);OGATEB::QAB(H)
- P(f);OGATEB::R(C)
- Tries
- Try
- K(B);P-FLIGHT
- Vars
- K(e);P_SPINP(f),S_FLIGHT::QAB1(H),XP(f)
- R(c);XP(G)::QAR2(H),XP(f)
- S(h);N_GUARD::QAB1(H),XS(h)
- R(c);P_PINR(A)::QAR2(H),XP(f)
- R(c);::QAR2(H),XP(f)
- S(h);N_GUARD::QAB1(H)
- P(f);OGATEB::R(C)
- Refutation
- P(a);CHECK
- Try
- K(B);P-FLIGHT
- Vars
- K(e);P_SPINP(f),S_FLIGHT::QAB1(H),XP(f)
- R(c);XP(G)::QAR2(H),XP(f)
- S(h);N_GUARD::QAB1(H),XS(h)
- R(c);::QAR2(H),XP(f)
- S(h);N_GUARD::QAB1(H)
- P(a);OGATEB::QAB(H)
- P(f);OGATEB::R(C)
- Refutation
- R(c);CHECK
- Try
- B(D);
- Vars
- K(e);P_SPINP(f),S_FLIGHT::QAB1(H),XP(f)
- R(c);XP(G)::QAR2(H),XP(f)
- S(h);N_GUARD::QAB1(H),XS(h)
- R(c);P_PINR(A)::QAR2(H),XP(f)
- R(c);::QAR2(H),XP(f)
- S(h);N_GUARD::QAB1(H)
- P(a);OGATEB::QAB(H)
- P(f);OGATEB::R(C)
- Refutation
- P(b);
- Try
- B(D);XR(c)
- Threat
- QAR2(H),XP(f)
- Vars
- K(e);P_SPINP(f),S_FLIGHT::QAB1(H),XP(f)
- Refutation
- P(g);XB(D)
- Try
- R(A);
- Vars
- K(e);P_SPINP(f),S_FLIGHT::QAB1(H),XP(f)
- R(c);XP(G)::QAR2(H),XP(f)
- S(h);N_GUARD::QAB1(H),XS(h)
- R(c);::QAR2(H),XP(f)
- S(h);N_GUARD::QAB1(H)
- P(a);OGATEB::QAB(H)
- P(f);OGATEB::R(C)
- Refutation
- R(c);CHECK
- Try
- R(A);
- Vars
- K(e);P_SPINP(f),S_FLIGHT::QAB1(H),XP(f)
- R(c);XP(G)::QAR2(H),XP(f)
- S(h);N_GUARD::QAB1(H),XS(h)
- R(c);::QAR2(H),XP(f)
- S(h);N_GUARD::QAB1(H)
- P(a);OGATEB::QAB(H)
- P(f);OGATEB::R(C)
- Refutation
- R(c);CHECK
- Try
- R(C);
- Vars
- K(e);P_SPINP(f),S_FLIGHT::QAB1(H),XP(f)
- R(c);XP(G)::QAR2(H),XP(f)
- S(h);N_GUARD::QAB1(H),XS(h)
- R(c);P_PINR(A)::QAR2(H),XP(f)
- R(c);::QAR2(H),XP(f)
- S(h);N_GUARD::QAB1(H)
- P(a);OGATEB::QAB(H)
- Refutation
- P(f);
- Try
- R(C);
- Vars
- K(e);P_SPINP(f),S_FLIGHT::QAB1(H),XP(f)
- R(c);XP(G)::QAR2(H),XP(f)
- S(h);N_GUARD::QAB1(H),XS(h)
- R(c);P_PINR(A)::QAR2(H),XP(f)
- R(c);::QAR2(H),XP(f)
- S(h);N_GUARD::QAB1(H)
- P(a);OGATEB::QAB(H)
- Refutation
- P(f);
- Try
- R(C);
- Vars
- K(e);P_SPINP(f),S_FLIGHT::QAB1(H),XP(f)
- R(c);XP(G)::QAR2(H),XP(f)
- P(a);OGATE,XR(C)::QAB(H),XP(a)
- S(h);N_GUARD::QAB1(H),XS(h)
- R(c);P_PINR(A)::QAR2(H),XP(f)
- R(c);::QAR2(H),XP(f)
- S(h);N_GUARD::QAB1(H)
- Refutation
- P(a);
- Try
- R(C);
- Vars
- K(e);P_SPINP(f),S_FLIGHT::QAB1(H),XP(f)
- R(c);XP(G)::QAR2(H),XP(f)
- S(h);N_GUARD::QAB1(H),XS(h)
- P(f);OGATEB::R(C)
- R(c);P_PINR(A)::QAR2(H),XP(f)
- R(c);::QAR2(H),XP(f)
- S(h);N_GUARD::QAB1(H)
- Refutation
- P(a);
- Try
- R(C);
- Threat
- QAR1(H)
- Vars
- S(h);N_GUARD::QAB1(H),XS(h)
- P(f);OGATEB::R(C)
- R(c);::QAR2(H),XP(f)
- S(h);N_GUARD::QAB1(H)
- Refutation
- P(f);XR(C)
- Try
- R(C);P_PINP(f)
- Vars
- K(e);S_FLIGHT::QAB1(H),XP(f)
- R(c);XP(G)::QAR2(H),XP(f)
- S(h);N_GUARD::QAB1(H),XS(h)
- R(c);P_PINR(A)::QAR2(H),XP(f)
- R(c);::QAR2(H),XP(f)
- S(h);N_GUARD::QAB1(H)
- Refutation
- P(a);
- Try
- Q(H);
- Vars
- R(c);XP(G)::QAR1(H)
- S(h);N_GUARD::QAB1(H),XS(h)
- R(c);P_PINR(A)::QAR1(H)
- R(c);::QAR1(H)
- S(h);N_GUARD::QAB1(H)
- P(f);OGATEB::R(C)
- Refutation
- P(a);
- Try
- Actual
- K(B);0-0
- Vars
- K(e);P_SPINP(f),S_FLIGHT::QAB1(H),XP(f)
- R(c);XP(G)::QAR2(H),XP(f)
- S(h);N_GUARD::QAB1(H),XS(h)
- P(a);OGATEB::QAB(H)
- R(c);::QAR2(H),XP(f)
- S(h);N_GUARD::QAB1(H)
- P(f);::R(C)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).