MESON Chess Problem Database
Problem Display
PID: 4817 (8/6p1/nQ3p2/K7/5B2/N1k5/1R2P3/1rr1b3 w - - 0 1)
Shinkman, William Anthony
American Chess Monthly, 1892
#2
6 + 7
| 2638 | White to Play | 1913 |
| 2681 | All Change Here! | 1919 |
| 3925 | The Golden Argosy | 1929 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Rb3#
- 1...Rxb2
- 2.Qe3#
- 1...Rd1
- 2.Rc2#
- 1...Rc2
- 2.Rxc2#
- 1...Bd2
- 2.Bxd2#
- 1...Bf2
- 2.Bd2#
- 1...Bg3
- 2.Bd2#
- 1...Bh4
- 2.Bd2#
- 1...Sb4
- 2.Qxb4#
- 1...Sc5
- 2.Qb4#
- 1...Sc7
- 2.Qb4#
- 1...Sb8
- 2.Qb4#
- 1...f5
- 2.Be5#
- 1...g5
- 2.Qxf6#
- 1...g6
- 2.Qxf6#
- 1...Ra1
- Tries
- 1.Ka4?
- 1...Rxb2
- 2.Qe3#
- 1...Sb4
- 2.Qxb4#
- 1...Ra1
- 2.Rb3#
- 1...Rd1
- 2.Rc2#
- 1...Rc2
- 2.Rxc2#
- 1...Bd2
- 2.Bxd2#
- 1...Bf2
- 2.Bd2#
- 1...Bg3
- 2.Bd2#
- 1...Bh4
- 2.Bd2#
- 1...Sc7
- 2.Qb4#
- 1...Sb8
- 2.Qb4#
- 1...f5
- 2.Be5#
- 1...g5
- 2.Qxf6#
- 1...g6
- 2.Qxf6#
- 1...Sc5+!
- 1...Rxb2
- 1.Bxc1?
- threat
- 2.Rc2#
- 2.Qe3#
- 1...Rxb2
- 2.Qe3#
- 2.Qxb2#
- 1...Sc5
- 2.Qxc5#
- 2.Qb4#
- 1...Bd2
- 2.Bxd2#
- 2.Rc2#
- 1...Bf2
- 2.Bd2#
- 2.Rc2#
- 1...Sb4
- 2.Qc5#
- 2.Qxb4#
- 1...Rxc1!
- threat
- 1.Be3?
- threat
- 2.Bd4#
- 2.Qd4#
- 2.Qb3#
- 1...Sb4
- 2.Bd4#
- 2.Qd4#
- 2.Qxb4#
- 1...Rd1
- 2.Rc2#
- 2.Qb3#
- 1...Rc2
- 2.Rxc2#
- 2.Qd4#
- 2.Qb3#
- 1...Bf2
- 2.Bd2#
- 2.Qd4#
- 2.Qb3#
- 1...Sc5
- 2.Qb4#
- 1...Rxb2!
- threat
- 1.Rxb1?
- threat
- 2.Rxc1#
- 2.Rb3#
- 2.Qe3#
- 2.Qb2#
- 1...Sc5
- 2.Qxc5#
- 2.Qb2#
- 2.Qb4#
- 1...Rd1
- 2.Rb3#
- 2.Qb2#
- 1...Rc2
- 2.Rb3#
- 2.Qe3#
- 1...Bd2
- 2.Rb3#
- 2.Qb2#
- 1...Bf2
- 2.Rxc1#
- 2.Rb3#
- 2.Qb2#
- 1...Sb4
- 2.Qc5#
- 2.Qxb4#
- 1...Rxb1!
- threat
- 1.Ka4?
- Keys
- 1.Bh6!
- 1...Rxb2
- 2.Qe3#
- 1...gxh6
- 2.Qxf6#
- 1...Sb4
- 2.Qxb4#
- 1...Sc5
- 2.Qb4#
- 1...Ra1
- 2.Rb3#
- 1...Rd1
- 2.Rc2#
- 1...Rc2
- 2.Rxc2#
- 1...Bd2
- 2.Bxd2#
- 1...Bf2
- 2.Bd2#
- 1...Bg3
- 2.Bd2#
- 1...Bh4
- 2.Bd2#
- 1...Sc7
- 2.Qb4#
- 1...Sb8
- 2.Qb4#
- 1...f5
- 2.Bxg7#
- 1...g5
- 2.Qxf6#
- 1...g6
- 2.Qxf6#
- 1...Rxb2
- 1.Bh6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD,P_PINS(C)::R1(A)
- R(a);SBLOCK,XR(A)::QAR2(F)
- R(b);N_GUARD::R1(A)
- R(b);N_GUARD::R1(A),XR(b)
- B(c);N_GUARD::B(D),XB(c)
- B(c);N_GUARD::B(D)
- S(e);N_GUARD::QAB1(F),XS(e)
- S(e);N_GUARD::QAB1(F)
- P(f);N_GUARD::B(D)
- P(g);N_GUARD::QAB(F),XP(f)
- Tries
- Try
- K(E);P-FLIGHT
- Vars
- R(a);SBLOCK,XR(A)::QAR2(F)
- S(e);N_GUARD::QAB1(F),XS(e)
- R(a);N_GUARD,P_PINS(C)::R1(A)
- R(b);N_GUARD::R1(A)
- R(b);N_GUARD::R1(A),XR(b)
- B(c);N_GUARD::B(D),XB(c)
- B(c);N_GUARD::B(D)
- S(e);N_GUARD::QAB1(F)
- P(f);N_GUARD::B(D)
- P(g);N_GUARD::QAB(F),XP(f)
- Refutation
- S(e);CHECK
- Try
- B(D);XR(b)
- Threat
- DUALS(2)
- Refutation
- R(a);XB(D)
- Try
- B(D);
- Threat
- DUALS(3)
- Vars
- S(e);N_GUARD::QAB1(F)
- Refutation
- R(a);XR(A)
- Try
- R(A);XR(a)
- Threat
- DUALS(4)
- Refutation
- R(b);XR(A)
- Try
- Actual
- B(D);
- Vars
- R(a);SBLOCK,XR(A)::QAR2(F)
- P(g);N_GUARD,XB(D)::QAB(F),XP(f)
- S(e);N_GUARD::QAB1(F),XS(e)
- S(e);N_GUARD::QAB1(F)
- R(a);N_GUARD,P_PINS(C)::R1(A)
- R(b);N_GUARD::R1(A)
- R(b);N_GUARD::R1(A),XR(b)
- B(c);N_GUARD::B(D),XB(c)
- B(c);N_GUARD::B(D)
- P(f);OGATEB::B(D),XP(g)
- P(g);N_GUARD::QAB(F),XP(f)
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).