MESON Chess Problem Database
Problem Display
PID: 223419 (r1N5/4p3/3nK3/kpQ5/8/4P3/r7/1R6 w - - 0 1)
Loyd, Sam
New York Turf, Field and Farm, 1886
#2
5 + 6
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Ka4
- 2.Qb4#
- 1...Ka6
- 2.Qb6#
- 1...Ra1
- 2.Rxa1#
- 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...Ra4
- 2.Qb6#
- 1...Ra6
- 2.Qb4#
- 1...Ra7
- 2.Qxa7#
- 1...Rb8
- 2.Qa7#
- 1...Rxc8
- 2.Qa7#
- 1...Sc4
- 2.Qxb5#
- 1...Se4
- 2.Qxb5#
- 1...Sf5
- 2.Qxb5#
- 1...Sb7
- 2.Qxb5#
- 1...Sf7
- 2.Qxb5#
- 1...Sxc8
- 2.Qxb5#
- 1...Se8
- 2.Qxb5#
- 1...Ka4
- Tries
- 1.Rb2?
- threat
- 2.Rxa2#
- 1...Ka4
- 2.Qb4#
- 1...Ka6
- 2.Qb6#
- 1...Rxb2
- 2.Qa3#
- 1...Ra3
- 2.Qxa3#
- 1...Ra4
- 2.Qb6#
- 1...Sc4
- 2.Qxb5#
- 1...Ra1!
- threat
- 1.Rb3?
- 1...Ka4
- 2.Qb4#
- 1...Ka6
- 2.Qb6#
- 1...Rxc8
- 2.Qa7#
- 1...Sxc8
- 2.Qxb5#
- 1...Rb2
- 2.Ra3#
- 2.Qa3#
- 1...Rc2
- 2.Ra3#
- 2.Qa3#
- 1...Rd2
- 2.Ra3#
- 2.Qa3#
- 1...Re2
- 2.Ra3#
- 2.Qa3#
- 1...Rf2
- 2.Ra3#
- 2.Qa3#
- 1...Rg2
- 2.Ra3#
- 2.Qa3#
- 1...Rh2
- 2.Ra3#
- 2.Qa3#
- 1...Ra3
- 2.Rxa3#
- 2.Qxa3#
- 1...Ra4
- 2.Qb6#
- 1...Ra6
- 2.Qb4#
- 1...Ra7
- 2.Qxa7#
- 1...Rb8
- 2.Qa7#
- 1...Sc4
- 2.Qxb5#
- 1...Se4
- 2.Qxb5#
- 1...Sf5
- 2.Qxb5#
- 1...Sb7
- 2.Qxb5#
- 1...Sf7
- 2.Qxb5#
- 1...Se8
- 2.Qxb5#
- 1...Ra1!
- 1...Ka4
- 1.Rxb5+?
- 1...Ka4
- 2.Sb6#
- 2.Qb4#
- 1...Ka6
- 2.Rb6#
- 2.Qb6#
- 2.Qc6#
- 1...Sxb5!
- 1...Ka4
- 1.Qc7+?
- 1...Ka6
- 2.Qb6#
- 1...Ka4!
- 1...Ka6
- 1.Rb2?
- Keys
- 1.e4!
- 1...Ka4
- 2.Qb4#
- 1...Ka6
- 2.Qb6#
- 1...Rxc8
- 2.Qa7#
- 1...Sxe4
- 2.Qxb5#
- 1...Sxc8
- 2.Qxb5#
- 1...Rb2
- 2.Qa3#
- 1...Ra1
- 2.Rxa1#
- 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...Ra4
- 2.Qb6#
- 1...Ra6
- 2.Qb4#
- 1...Ra7
- 2.Qxa7#
- 1...Rb8
- 2.Qa7#
- 1...Sc4
- 2.Qxb5#
- 1...Sf5
- 2.Qxb5#
- 1...Sb7
- 2.Qxb5#
- 1...Sf7
- 2.Qxb5#
- 1...Se8
- 2.Qxb5#
- 1...Ka4
- 1.e4!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(b);N_SPINP(c),P-FLIGHT::QAR1(C)
- R(a);OGATEB::R(A),XR(a)
- R(a);N_GUARD::QAR2(C)
- R(a);N_GUARD,P_PINP(B)::QAR2(C)
- R(a);N_GUARD::QAR2(C),XR(a)
- R(a);SBLOCK::QAB1(C)
- R(f);SBLOCK::QAB1(C)
- R(f);N_GUARD::QAR2(C),XR(f)
- R(f);N_GUARD::QAR2(C)
- R(f);N_GUARD,XS(E)::QAR2(C)
- S(d);N_GUARD::QAR1(C),XP(c)
- S(d);N_GUARD,XS(E)::QAR1(C),XP(c)
- Tries
- Try
- R(A);
- Threat
- R(A),XR(a)
- Vars
- K(b);N_SPINP(c),P-FLIGHT::QAR1(C)
- R(a);N_GUARD,XR(A)::QAR2(C)
- R(a);N_GUARD::QAR2(C),XR(a)
- R(a);SBLOCK::QAB1(C)
- S(d);N_GUARD::QAR1(C),XP(c)
- Refutation
- R(a);
- Try
- R(A);
- Vars
- K(b);N_SPINP(c),P-FLIGHT::QAR1(C)
- R(f);N_GUARD,XS(E)::QAR2(C)
- S(d);N_GUARD,XS(E)::QAR1(C),XP(c)
- R(a);SBLOCK::QAB1(C)
- R(f);SBLOCK::QAB1(C)
- R(f);N_GUARD::QAR2(C),XR(f)
- R(f);N_GUARD::QAR2(C)
- S(d);N_GUARD::QAR1(C),XP(c)
- Refutation
- R(a);
- Try
- R(A);CHECK,XP(c)
- Refutation
- S(d);P_SPINS(d),XR(A)
- Try
- Q(C);CHECK,N_PINP(c)
- Vars
- K(b);P-FLIGHT::QAR1(C)
- Refutation
- K(b);P-FLIGHT
- Try
- Actual
- P(B);
- Vars
- K(b);N_SPINP(c),P-FLIGHT::QAR1(C)
- R(f);N_GUARD,XS(E)::QAR2(C)
- S(d);N_GUARD,XP(B)::QAR1(C),XP(c)
- S(d);N_GUARD,XS(E)::QAR1(C),XP(c)
- R(a);N_GUARD::QAR2(C)
- R(a);OGATEB::R(A),XR(a)
- R(a);N_GUARD,P_PINP(B)::QAR2(C)
- R(a);N_GUARD::QAR2(C),XR(a)
- R(a);SBLOCK::QAB1(C)
- R(f);SBLOCK::QAB1(C)
- R(f);N_GUARD::QAR2(C),XR(f)
- R(f);N_GUARD::QAR2(C)
- S(d);N_GUARD::QAR1(C),XP(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).