MESON Chess Problem Database
Problem Display
PID: 158431 (2r5/1RpR2p1/6p1/r1kP2K1/2P5/3P4/1Q2n3/8 w - - 0 1)
Arguelles Ferrer, Antonio Fernandez
L'Echiquier, 1930
#2
7 + 7
| 15148 | Sadier Collection | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Rb5#
- 1...Ra2
- 2.Rb5#
- 1...Ra3
- 2.Rb5#
- 1...Ra4
- 2.Rb5#
- 1...Rb5
- 2.Rxb5#
- 1...Ra6
- 2.Rb5#
- 1...Ra7
- 2.Rb5#
- 1...Raa8
- 2.Rb5#
- 1...Rca8
- 2.Rbxc7#
- 1...Rb8
- 2.Rbxc7#
- 1...Rd8
- 2.Rbxc7#
- 1...Re8
- 2.Rbxc7#
- 1...Rf8
- 2.Rbxc7#
- 1...Rg8
- 2.Rbxc7#
- 1...Rh8
- 2.Rbxc7#
- 1...Sc1
- 2.Qf2#
- 1...Sg1
- 2.Qf2#
- 1...Sc3
- 2.Qf2#
- 1...Sg3
- 2.Qf2#
- 1...Sd4
- 2.Qb4#
- 1...Sf4
- 2.Qf2#
- 1...c6
- 2.Qb6#
- 1...Ra1
- Tries
- 1.Kg4?
- 1...Sc3
- 2.Qf2#
- 1...Ra1
- 2.Rb5#
- 1...Ra2
- 2.Rb5#
- 1...Ra3
- 2.Rb5#
- 1...Ra4
- 2.Rb5#
- 1...Rb5
- 2.Rxb5#
- 1...Ra6
- 2.Rb5#
- 1...Ra7
- 2.Rb5#
- 1...Raa8
- 2.Rb5#
- 1...Rca8
- 2.Rbxc7#
- 1...Rb8
- 2.Rbxc7#
- 1...Rd8
- 2.Rbxc7#
- 1...Re8
- 2.Rbxc7#
- 1...Rf8
- 2.Rbxc7#
- 1...Rg8
- 2.Rbxc7#
- 1...Rh8
- 2.Rbxc7#
- 1...Sc1
- 2.Qf2#
- 1...Sg1
- 2.Qf2#
- 1...Sg3
- 2.Qf2#
- 1...Sd4
- 2.Qb4#
- 1...Sf4
- 2.Qf2#
- 1...c6
- 2.Qb6#
- 1...g5!
- 1...Sc3
- 1.Rdxc7+?
- 1...Rxc7
- 2.Qb6#
- 1...Kd6!
- 1...Rxc7
- 1.Rd8?
- 1...Sc3
- 2.Qf2#
- 1...Rca8
- 2.Rxc7#
- 1...Ra1
- 2.Rb5#
- 1...Ra2
- 2.Rb5#
- 1...Ra3
- 2.Rb5#
- 1...Ra4
- 2.Rb5#
- 1...Rb5
- 2.Rxb5#
- 1...Ra6
- 2.Rb5#
- 1...Ra7
- 2.Rb5#
- 1...Raa8
- 2.Rb5#
- 1...Rb8
- 2.Rxc7#
- 1...Sc1
- 2.Qf2#
- 1...Sg1
- 2.Qf2#
- 1...Sg3
- 2.Qf2#
- 1...Sd4
- 2.Qb4#
- 1...Sf4
- 2.Qf2#
- 1...c6
- 2.Qb6#
- 1...Rxd8!
- 1...Sc3
- 1.d4+?
- 1...Sxd4
- 2.Qb4#
- 1...Kxc4!
- 1...Sxd4
- 1.Kg4?
- Keys
- 1.Qe5!
- 1...Rb5
- 2.Rxb5#
- 1...Rca8
- 2.Rdxc7#
- 1...Ra1
- 2.Rb5#
- 1...Ra2
- 2.Rb5#
- 1...Ra3
- 2.Rb5#
- 1...Ra4
- 2.Rb5#
- 1...Ra6
- 2.Rb5#
- 1...Ra7
- 2.Rb5#
- 1...Raa8
- 2.Rb5#
- 1...Rb8
- 2.Rdxc7#
- 1...Rd8
- 2.Rdxc7#
- 1...Re8
- 2.Rdxc7#
- 1...Rf8
- 2.Rdxc7#
- 1...Rg8
- 2.Rdxc7#
- 1...Rh8
- 2.Rdxc7#
- 1...Sc1
- 2.Qe3#
- 1...Sg1
- 2.Qe3#
- 1...Sc3
- 2.Qe3#
- 1...Sg3
- 2.Qe3#
- 1...Sd4
- 2.Qe7#
- 1...Sf4
- 2.Qe3#
- 1...c6
- 2.d6#
- 1...Rb5
- 1.Qe5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 14
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD::R1(F)
- R(b);N_GUARD::R1(F),XR(b)
- R(g);N_GUARD::R(F),XP(e)
- S(a);OGATE::QAB(A)
- S(a);SBLOCK::QAB1(A)
- P(e);N_GUARD::QAB1(A)
- Tries
- Try
- K(E);P-FLIGHT
- Vars
- S(a);OGATE::QAB(A)
- R(b);N_GUARD::R1(F)
- R(b);N_GUARD,P_PINP(C)::R1(F)
- R(b);N_GUARD::R1(F),XR(b)
- R(g);N_GUARD::R(F),XP(e)
- S(a);SBLOCK::QAB1(A)
- P(e);N_GUARD::QAB1(A)
- Refutation
- P(d);
- Try
- R(G);CHECK,XP(e)
- Vars
- R(g);XR(G)::QAB1(A)
- Refutation
- K(c);P_PINP(D),S_FLIGHT
- Try
- R(G);
- Vars
- S(a);OGATE::QAB(A)
- R(g);N_GUARD::R(F),XP(e)
- R(b);N_GUARD::R1(F)
- R(b);N_GUARD::R1(F),XR(b)
- S(a);SBLOCK::QAB1(A)
- P(e);N_GUARD::QAB1(A)
- Refutation
- R(g);XR(G)
- Try
- P(B);CHECK
- Vars
- S(a);SBLOCK,XP(B)::QAB1(A)
- Refutation
- K(c);P-FLIGHT,P_PINP(D),XP(C)
- Try
- Actual
- Q(A);
- Vars
- R(b);N_GUARD::R1(F),XR(b)
- R(g);N_GUARD::R(G),XP(e)
- R(b);N_GUARD::R1(F)
- S(a);N_GUARD::QAB(A)
- S(a);SBLOCK::QAB(A)
- P(e);SBLOCK::QAR(A)+P(D)
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).