MESON Chess Problem Database
Problem Display
PID: 71228 (8/8/3P4/1Q1PkNKb/3rP1R1/N1n5/1B6/b6B w - - 0 1)
Martin, Godefroy Jose
Il Due Mosse, 1955
#2
10 + 5
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Sc4#
- 1...Rd2
- 2.Sc4#
- 1...Rd3
- 2.Sc4#
- 1...Rc4
- 2.Sxc4#
- 1...Rxe4
- 2.Rxe4#
- 1...Rxd5
- 2.Qxd5#
- 1...Bxg4
- 2.Qe8#
- 1...Be8
- 2.Qxe8#
- 1...Sb1
- 2.Sc4#
- 1...Sd1
- 2.Sc4#
- 1...Sa2
- 2.Sc4#
- 1...Se2
- 2.Sc4#
- 1...Sa4
- 2.Sc4#
- 1...Sxe4+
- 2.Rxe4#
- 1...Sxb5
- 2.Sc4#
- 1...Sxd5
- 2.Qxd5#
- 1...Rd1
- Tries
- 1.Qd3?
- threat
- 2.Qg3#
- 2.Qxd4#
- 1...Sxe4+
- 2.Qxe4#
- 1...Rxd3
- 2.Sc4#
- 1...Rxe4
- 2.Rxe4#
- 2.Qxe4#
- 1...Rxd5
- 2.Qxd5#
- 1...Ra4
- 2.Qg3#
- 1...Rb4
- 2.Qg3#
- 1...Rc4
- 2.Sxc4#
- 2.Qg3#
- 1...Se2
- 2.Sc4#
- 1...Sb5
- 2.Sc4#
- 2.Qg3#
- 1...Sxd5!
- threat
- 1.Qb7?
- threat
- 2.Qe7#
- 2.Qg7#
- 1...Sxe4+
- 2.Rxe4#
- 1...Rxe4
- 2.Rxe4#
- 1...Rxd5
- 2.Qxd5#
- 2.Qe7#
- 1...Sxd5
- 2.Qxd5#
- 1...Bf7!
- threat
- 1.d7?
- threat
- 2.Qb8#
- 1...Sxe4+
- 2.Rxe4#
- 1...Rxe4
- 2.Rxe4#
- 1...Rxd5
- 2.Qxd5#
- 1...Sxb5
- 2.Sc4#
- 1...Sxd5
- 2.Qxd5#
- 1...Rc4
- 2.Sxc4#
- 1...Rb4!
- threat
- 1.Qd3?
- Keys
- 1.Qe2!
- threat
- 2.Qh2#
- 1...Sxe4+
- 2.Qxe4#
- 1...Rxe4
- 2.Qxe4#
- 1...Rxd5
- 2.exd5#
- 1...Sxe2
- 2.Sc4#
- 1...Sxd5
- 2.exd5#
- 1...Rd2
- 2.Sc4#
- 1...Rd3
- 2.Sc4#
- threat
- 1.Qe2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 0
- REMOVED MATES = 9
- Sets
- R(c);N_GUARD,P_SPINS(b)::S(C)
- R(c);N_GUARD,P_SPINS(b)::S(C),XR(c)
- R(c);OGATE,P_SPINS(b),XP(D)::R1(E),XR(c)
- R(c);OGATE,P_SPINR(c),P_SPINS(b),XP(G)::QAR1(F),XR(c)
- B(e);N_GUARD,XR(E)::QAR(F)
- B(e);N_GUARD::QAR(F),XB(e)
- S(b);P_SPINR(c)::S(C)
- S(b);CHECK,OGATE,P_SPINR(c),XP(D)::R1(E),XS(b)
- S(b);P_SPINR(c),XQ(F)::S(C)
- S(b);OGATE,P_SPINR(c),P_SPINS(b),XP(G)::QAR1(F),XS(b)
- Tries
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- S(b);CHECK,OGATE,P_SPINR(c),XP(D)::QAR1(F),XS(b)
- R(c);N_GUARD,P_SPINS(b),XQ(F)::S(C)
- R(c);OGATE,P_SPINS(b),XP(G)::QAR1(F),XR(c)
- R(c);P_SPINS(b)::QAB(F)
- S(b);P_SPINR(c)::S(C)
- Refutation
- S(b);P_SPINR(c),XP(G)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- S(b);CHECK,OGATE,P_SPINR(c),XP(D)::R1(E),XS(b)
- R(c);OGATE,P_SPINS(b),XP(D)::R1(E),XR(c)
- S(b);OGATE,P_SPINR(c),XP(G)::QAR1(F),XS(b)
- Refutation
- B(e);
- Try
- P(J);
- Threat
- QAB(F)
- Vars
- S(b);CHECK,OGATE,P_SPINR(c),XP(D)::R1(E),XS(b)
- R(c);OGATE,P_SPINS(b),XP(D)::R1(E),XR(c)
- R(c);OGATE,P_SPINR(c),P_SPINS(b),XP(G)::QAR1(F),XR(c)
- S(b);P_SPINR(c),XQ(F)::S(C)
- S(b);OGATE,P_SPINR(c),P_SPINS(b),XP(G)::QAR1(F),XS(b)
- R(c);N_GUARD,P_SPINS(b)::S(C),XR(c)
- Refutation
- R(c);P_SPINS(b)
- Try
- Actual
- Q(F);
- Threat
- QAB(F)
- Vars
- S(b);CHECK,OGATE,P_SPINR(c),P_SPINS(b),XP(D)::QAR1(F),XS(b)
- R(c);OGATE,P_SPINR(c),P_SPINS(b),XP(D)::QAR1(F),XR(c)
- R(c);OGATE,P_SPINS(b),XP(G)::QAR(F)+P(D),XR(c)
- S(b);P_SPINR(c),XQ(F)::S(C)
- S(b);OGATE,P_SPINR(c),XP(G)::QAR(F)+P(D),XS(b)
- R(c);N_GUARD,P_SPINS(b)::S(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).