MESON Chess Problem Database
Problem Display
PID: 55450 (6n1/2KNBN2/R6P/R1p2k1r/4p3/2r1Q1nP/4P1P1/8 w - - 0 1)
Mansfield, Comins
1st HM., Ferrari MT (Sinfonie Scacchistiche), 1974-1975
#2
11 + 7
| 4054 | Complete Mansfield/III | 1999 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Qf2#
- 1...Rc2
- 2.Qf2#
- 1...Ra3
- 2.Rxc5#
- 1...Rb3
- 2.Rxc5#
- 1...Rc4
- 2.Qf2#
- 1...Rxh3
- 2.Qg5#
- 1...Rh4
- 2.Qg5#
- 1...Rg5
- 2.Qxg5#
- 1...Rxh6
- 2.Qg5#
- 1...Sf1
- 2.g4#
- 1...Sh1
- 2.g4#
- 1...Sxe2
- 2.g4#
- 1...Sf6
- 2.Rxf6#
- 1...Sxh6
- 2.Rf6#
- 1...Sxe7
- 2.Rf6#
- 1...Rc1
- Tries
- 1.Sxc5?
- 1...Rxc5+
- 2.Rxc5#
- 1...Rxe3
- 2.Sd3#
- 1...Rxh3
- 2.Qg5#
- 1...Rxh6
- 2.Qg5#
- 1...Sxe2
- 2.Qxe4#
- 2.g4#
- 1...Sxh6
- 2.Rf6#
- 1...Sf6
- 2.Rxf6#
- 1...Rc1
- 2.Qf2#
- 1...Rc2
- 2.Qf2#
- 1...Ra3
- 2.Sa4#
- 1...Rb3
- 2.Sxb3#
- 1...Rd3
- 2.Sxd3#
- 1...Rc4
- 2.Qf2#
- 1...Rh4
- 2.Qg5#
- 1...Rg5
- 2.Qxg5#
- 1...Sf1
- 2.Qxe4#
- 2.g4#
- 1...Sh1
- 2.Qxe4#
- 2.g4#
- 1...Sxe7!
- 1...Rxc5+
- 1.Sd6+?
- 1...Kg6
- 2.Sf8#
- 1...Ke6!
- 1...Kg6
- 1.Bg5?
- threat
- 2.Qf4#
- 1...Rxe3
- 2.Rxc5#
- 1...Rxg5
- 2.Qxg5#
- 1...Sxe2
- 2.g4#
- 1...Sf6
- 2.Rxf6#
- 1...Rh4!
- threat
- 1.Qxg3?
- threat
- 2.Qe5#
- 2.Qg4#
- 1...Rxh3
- 2.Qg5#
- 1...Sxh6
- 2.Rf6#
- 2.Qe5#
- 1...Rh4
- 2.Qe5#
- 2.Qg5#
- 1...Rg5
- 2.Qe5#
- 2.Qxg5#
- 1...Sf6
- 2.Rxf6#
- 1...Rxg3!
- threat
- 1.Sxc5?
- Keys
- 1.Bxc5!
- 1...Rxc5+
- 2.Rxc5#
- 1...Rxe3
- 2.Bxe3#
- 1...Rxh3
- 2.Qg5#
- 1...Rxh6
- 2.Qg5#
- 1...Sxe2
- 2.g4#
- 1...Sxh6
- 2.Rf6#
- 1...Sf6
- 2.Rxf6#
- 1...Rd3
- 2.Bd4#
- 1...Rc1
- 2.Qf2#
- 1...Rc2
- 2.Qf2#
- 1...Ra3
- 2.Bxa3#
- 1...Rb3
- 2.Bb4#
- 1...Rc4
- 2.Qf2#
- 1...Rh4
- 2.Qg5#
- 1...Rg5
- 2.Qxg5#
- 1...Sf1
- 2.g4#
- 1...Sh1
- 2.g4#
- 1...Se7
- 2.Rf6#
- 1...Rxc5+
- 1.Bxc5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD::QAR(C)
- R(a);N_GUARD::R(E),XP(d)
- R(f);N_GUARD,XP(D)::QAR1(C)
- R(f);N_GUARD::QAR1(C)
- R(f);N_GUARD::QAR1(C),XR(f)
- R(f);N_GUARD,XP(G)::QAR1(C)
- S(b);OGATE::P(B)
- S(b);OGATE,XP(A)::P(B)
- S(g);N_GUARD::R1(F),XS(g)
- S(g);N_GUARD,XP(G)::R1(F)
- S(g);N_GUARD,XB(J)::R1(F)
- Tries
- Try
- S(I);P_SPINS(I),XP(d)
- Vars
- R(a);CHECK,OGATE,P_SPINR(a),XS(I)::R(E),XR(a)
- R(a);N_PINS(I),XQ(C)::R(E)+S(I)
- R(f);N_GUARD,XP(D)::QAR1(C)
- R(f);N_GUARD,XP(G)::QAR1(C)
- S(g);N_GUARD,XP(G)::R1(F)
- S(g);N_GUARD::R1(F),XS(g)
- R(a);N_GUARD::QAR(C)
- R(a);N_PINS(I)::R(E)+S(I)
- R(a);N_PINS(I)::R(E)+S(I),XR(a)
- R(f);N_GUARD::QAR1(C)
- R(f);N_GUARD::QAR1(C),XR(f)
- Refutation
- S(g);XB(J)
- Try
- S(K);CHECK
- Vars
- K(e);N_SPINP(d),S_FLIGHT::S(I)
- Refutation
- K(e);N_SPINP(d),P_SPINP(c),S_FLIGHT
- Try
- B(J);
- Threat
- QAR1(C)
- Vars
- R(a);N_GUARD,XQ(C)::R(E),XP(d)
- R(f);OGATE,XB(J)::QAR1(C),XR(f)
- S(b);OGATE,XP(A)::P(B)
- S(g);N_GUARD::R1(F),XS(g)
- Refutation
- R(f);
- Try
- Q(C);XS(b)
- Threat
- DUALS(2)
- Vars
- R(f);N_GUARD,XP(D)::QAR1(C)
- S(g);N_GUARD::R1(F),XS(g)
- Refutation
- R(a);XQ(C)
- Try
- Actual
- B(J);P_SPINB(J),XP(d)
- Vars
- R(a);CHECK,OGATE,P_SPINR(a),XB(J)::R(E),XR(a)
- R(a);N_PINB(J),XQ(C)::R(E)+B(J),XR(a)
- R(f);N_GUARD,XP(D)::QAR1(C)
- R(f);N_GUARD,XP(G)::QAR1(C)
- S(b);XP(A)::P(B)
- S(g);N_GUARD,XP(G)::R1(F)
- S(g);N_GUARD::R1(F),XS(g)
- R(a);N_PINB(J)::R(E)+B(J)
- R(a);N_GUARD::QAR(C)
- R(a);N_PINB(J)::R(E)+B(J),XR(a)
- R(f);N_GUARD::QAR1(C)
- R(f);N_GUARD::QAR1(C),XR(f)
- S(b);::P(B)
- S(g);N_GUARD::R1(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).