MESON Chess Problem Database
Problem Display
PID: 50709 (8/5n2/1RB1R3/2n2p2/r2k1P1K/Np4B1/3PP3/N5b1 w - - 0 1)
Cleaver, HH
Chess Amateur (The), 1907
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Rxa3
- 2.Rb4#
- 1...Rb4
- 2.Rxb4#
- 1...Rc4
- 2.Sb5#
- 1...Ra5
- 2.Rb4#
- 1...Ra6
- 2.Rb4#
- 1...Ra7
- 2.Rb4#
- 1...Ra8
- 2.Rb4#
- 1...Bf2
- 2.Bxf2#
- 1...Bh2
- 2.Bf2#
- 1...Sd3
- 2.Sxb3#
- 1...Se4
- 2.Sxb3#
- 1...Sa6
- 2.Sxb3#
- 1...Sxe6
- 2.Sxb3#
- 1...Sb7
- 2.Sxb3#
- 1...Sd7
- 2.Sxb3#
- 1...Se5
- 2.Rd6#
- 1...Sg5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Sh6
- 2.Rd6#
- 1...Sd8
- 2.Rd6#
- 1...Sh8
- 2.Rd6#
- 1...b2
- 2.S1c2#
- 1...Rxa3
- Tries
- 1.Kh5?
- 1...Rxa3
- 2.Rb4#
- 1...Sxe6
- 2.Sxb3#
- 1...Sd3
- 2.Sxb3#
- 1...Se4
- 2.Sxb3#
- 1...Sa6
- 2.Sxb3#
- 1...Sb7
- 2.Sxb3#
- 1...Sd7
- 2.Sxb3#
- 1...Rb4
- 2.Rxb4#
- 1...Rc4
- 2.Sb5#
- 1...Ra5
- 2.Rb4#
- 1...Ra6
- 2.Rb4#
- 1...Ra7
- 2.Rb4#
- 1...Ra8
- 2.Rb4#
- 1...Bf2
- 2.Bxf2#
- 1...Bh2
- 2.Bf2#
- 1...Se5
- 2.Rd6#
- 1...Sg5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Sh6
- 2.Rd6#
- 1...Sd8
- 2.Rd6#
- 1...Sh8
- 2.Rd6#
- 1...b2
- 2.S1c2#
- 1...Be3!
- 1...Rxa3
- 1.Rb7?
- 1...Rxa3
- 2.Rb4#
- 1...Sxe6
- 2.Sxb3#
- 1...Sxb7
- 2.Sxb3#
- 1...Sd3
- 2.Sxb3#
- 1...Se4
- 2.Sxb3#
- 1...Sa6
- 2.Sxb3#
- 1...Sd7
- 2.Sxb3#
- 1...Rb4
- 2.Rxb4#
- 1...Rc4
- 2.Sb5#
- 1...Ra5
- 2.Rb4#
- 1...Ra6
- 2.Rb4#
- 1...Ra7
- 2.Rb4#
- 1...Ra8
- 2.Rb4#
- 1...Bf2
- 2.Bxf2#
- 1...Bh2
- 2.Bf2#
- 1...Se5
- 2.Rd6#
- 1...Sg5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Sh6
- 2.Rd6#
- 1...Sd8
- 2.Rd6#
- 1...Sh8
- 2.Rd6#
- 1...b2
- 2.S1c2#
- 1...Be3!
- 1...Rxa3
- 1.Rb8?
- 1...Rxa3
- 2.Rb4#
- 1...Sxe6
- 2.Sxb3#
- 1...Sd3
- 2.Sxb3#
- 1...Se4
- 2.Sxb3#
- 1...Sa6
- 2.Sxb3#
- 1...Sb7
- 2.Sxb3#
- 1...Sd7
- 2.Sxb3#
- 1...Rb4
- 2.Rxb4#
- 1...Rc4
- 2.Sb5#
- 1...Ra5
- 2.Rb4#
- 1...Ra6
- 2.Rb4#
- 1...Ra7
- 2.Rb4#
- 1...Ra8
- 2.Rb4#
- 1...Bf2
- 2.Bxf2#
- 1...Bh2
- 2.Bf2#
- 1...Se5
- 2.Rd6#
- 1...Sg5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Sh6
- 2.Rd6#
- 1...Sd8
- 2.Rd6#
- 1...Sh8
- 2.Rd6#
- 1...b2
- 2.S1c2#
- 1...Be3!
- 1...Rxa3
- 1.Re4+?
- 1...Sxe4
- 2.Sxb3#
- 1...fxe4!
- 1...Sxe4
- 1.Rf6?
- 1...Rxa3
- 2.Rb4#
- 1...Sd3
- 2.Sxb3#
- 1...Se4
- 2.Sxb3#
- 1...Sa6
- 2.Sxb3#
- 1...Se6
- 2.Sxb3#
- 1...Sb7
- 2.Sxb3#
- 1...Sd7
- 2.Sxb3#
- 1...Rb4
- 2.Rxb4#
- 1...Rc4
- 2.Sb5#
- 1...Ra5
- 2.Rb4#
- 1...Ra6
- 2.Rb4#
- 1...Ra7
- 2.Rb4#
- 1...Ra8
- 2.Rb4#
- 1...Bf2
- 2.Bxf2#
- 1...Bh2
- 2.Bf2#
- 1...Se5
- 2.Rd6#
- 1...Sg5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Sh6
- 2.Rd6#
- 1...Sd8
- 2.Rd6#
- 1...Sh8
- 2.Rd6#
- 1...b2
- 2.S1c2#
- 1...Be3!
- 1...Rxa3
- 1.Rg6?
- 1...Rxa3
- 2.Rb4#
- 1...Sd3
- 2.Sxb3#
- 1...Se4
- 2.Sxb3#
- 1...Sa6
- 2.Sxb3#
- 1...Se6
- 2.Sxb3#
- 1...Sb7
- 2.Sxb3#
- 1...Sd7
- 2.Sxb3#
- 1...Rb4
- 2.Rxb4#
- 1...Rc4
- 2.Sb5#
- 1...Ra5
- 2.Rb4#
- 1...Ra6
- 2.Rb4#
- 1...Ra7
- 2.Rb4#
- 1...Ra8
- 2.Rb4#
- 1...Bf2
- 2.Bxf2#
- 1...Bh2
- 2.Bf2#
- 1...Se5
- 2.Rd6#
- 1...Sg5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Sh6
- 2.Rd6#
- 1...Sd8
- 2.Rd6#
- 1...Sh8
- 2.Rd6#
- 1...b2
- 2.S1c2#
- 1...Be3!
- 1...Rxa3
- 1.Kh5?
- Keys
- 1.Be1!
- 1...Bf2+
- 2.Bxf2#
- 1...Rxa3
- 2.Rb4#
- 1...Sxe6
- 2.Sxb3#
- 1...Sd3
- 2.Sxb3#
- 1...Se4
- 2.Sxb3#
- 1...Sa6
- 2.Sxb3#
- 1...Sb7
- 2.Sxb3#
- 1...Sd7
- 2.Sxb3#
- 1...Be3
- 2.dxe3#
- 1...Rb4
- 2.Rxb4#
- 1...Rc4
- 2.Sb5#
- 1...Ra5
- 2.Rb4#
- 1...Ra6
- 2.Rb4#
- 1...Ra7
- 2.Rb4#
- 1...Ra8
- 2.Rb4#
- 1...Bh2
- 2.Bf2#
- 1...Se5
- 2.Rd6#
- 1...Sg5
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Sh6
- 2.Rd6#
- 1...Sd8
- 2.Rd6#
- 1...Sh8
- 2.Rd6#
- 1...b2
- 2.S1c2#
- 1...Bf2+
- 1.Be1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(c);N_GUARD,XS(D)::R(H)
- R(c);N_GUARD::R(H),XR(c)
- R(c);SBLOCK::S(D)
- R(c);N_GUARD::R(H)
- B(a);N_GUARD,P_PINB(E)::B(E),XB(a)
- B(a);N_GUARD::B(E)
- S(e);N_GUARD::S(A),XP(b)
- S(e);N_GUARD,XR(J)::S(A),XP(b)
- S(g);N_GUARD::R(J)
- S(g);N_GUARD::R(J),XS(g)
- P(b);N_GUARD::S(A)
- Tries
- Try
- K(G);P-FLIGHT
- Vars
- R(c);N_GUARD,XS(D)::R(H)
- S(e);N_GUARD,XR(J)::S(A),XP(b)
- S(e);N_GUARD::S(A),XP(b)
- R(c);N_GUARD::R(H),XR(c)
- R(c);SBLOCK::S(D)
- R(c);N_GUARD::R(H)
- B(a);N_GUARD::B(E),XB(a)
- B(a);N_GUARD::B(E)
- S(g);N_GUARD::R(J)
- S(g);N_GUARD::R(J),XS(g)
- P(b);N_GUARD::S(A)
- Refutation
- B(a);
- Try
- R(H);
- Vars
- R(c);N_GUARD,XS(D)::R(H)
- S(e);N_GUARD,XR(J)::S(A),XP(b)
- S(e);N_GUARD,XR(H)::S(A),XP(b)
- S(e);N_GUARD::S(A),XP(b)
- R(c);N_GUARD::R(H),XR(c)
- R(c);SBLOCK::S(D)
- R(c);N_GUARD::R(H)
- B(a);N_GUARD,P_PINB(E)::B(E),XB(a)
- B(a);N_GUARD::B(E)
- S(g);N_GUARD::R(J)
- S(g);N_GUARD::R(J),XS(g)
- P(b);N_GUARD::S(A)
- Refutation
- B(a);
- Try
- R(H);
- Vars
- R(c);N_GUARD,XS(D)::R(H)
- S(e);N_GUARD,XR(J)::S(A),XP(b)
- S(e);N_GUARD::S(A),XP(b)
- R(c);N_GUARD::R(H),XR(c)
- R(c);SBLOCK::S(D)
- R(c);N_GUARD::R(H)
- B(a);N_GUARD,P_PINB(E)::B(E),XB(a)
- B(a);N_GUARD::B(E)
- S(g);N_GUARD::R(J)
- S(g);N_GUARD::R(J),XS(g)
- P(b);N_GUARD::S(A)
- Refutation
- B(a);
- Try
- R(J);CHECK
- Vars
- S(e);XR(J)::S(A),XP(b)
- Refutation
- P(f);XR(J)
- Try
- R(J);
- Vars
- R(c);N_GUARD,XS(D)::R(H)
- S(e);N_GUARD::S(A),XP(b)
- R(c);N_GUARD::R(H),XR(c)
- R(c);SBLOCK::S(D)
- R(c);N_GUARD::R(H)
- B(a);N_GUARD,P_PINB(E)::B(E),XB(a)
- B(a);N_GUARD::B(E)
- S(g);N_GUARD::R(J)
- S(g);N_GUARD::R(J),XS(g)
- P(b);N_GUARD::S(A)
- Refutation
- B(a);
- Try
- R(J);
- Vars
- R(c);N_GUARD,XS(D)::R(H)
- S(e);N_GUARD::S(A),XP(b)
- R(c);N_GUARD::R(H),XR(c)
- R(c);SBLOCK::S(D)
- R(c);N_GUARD::R(H)
- B(a);N_GUARD,P_PINB(E)::B(E),XB(a)
- B(a);N_GUARD::B(E)
- S(g);N_GUARD::R(J)
- S(g);N_GUARD::R(J),XS(g)
- P(b);N_GUARD::S(A)
- Refutation
- B(a);
- Try
- Actual
- B(E);
- Vars
- B(a);CHECK,N_GUARD::B(E),XB(a)
- R(c);N_GUARD,XS(D)::R(H)
- S(e);N_GUARD,XR(J)::S(A),XP(b)
- S(e);N_GUARD::S(A),XP(b)
- B(a);OGATE::P(B),XB(a)
- R(c);N_GUARD::R(H),XR(c)
- R(c);SBLOCK::S(D)
- R(c);N_GUARD::R(H)
- B(a);N_GUARD::B(E)
- S(g);N_GUARD::R(J)
- S(g);N_GUARD::R(J),XS(g)
- P(b);N_GUARD::S(A)
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).