MESON Chess Problem Database
Problem Display
PID: 53861 (3N4/b1R2p2/r2BRK2/2p1P3/p1Bk4/N4Q2/1P6/4rb2 w - - 0 1)
Santiago, Joao Baptista
Het Belgisch Schaakbord (L'Echiquier Belge), 1951
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qf4#
- 1...Rb1
- 2.Qf4#
- 1...Rc1
- 2.Qf4#
- 1...Rd1
- 2.Qf4#
- 1...Re2
- 2.Qd3#
- 1...Re3
- 2.Qd5#
- 1...Re4
- 2.Qc3#
- 1...Rxe5
- 2.Bxe5#
- 1...Ra5
- 2.Sc6#
- 1...Rb6
- 2.Bxc5#
- 1...Rc6
- 2.Sxc6#
- 1...Rxd6
- 2.Rxd6#
- 1...Be2
- 2.Qf4#
- 1...Bg2
- 2.Qd3#
- 1...Bd3
- 2.Qxd3#
- 1...Bh3
- 2.Qd3#
- 1...Bxc4
- 2.Sc2#
- 1...Bb6
- 2.Sc6#
- 1...Bb8
- 2.Bxc5#
- 1...fxe6
- 2.Sxe6#
- 1...Ra1
- Tries
- 1.Kf5?
- threat
- 2.Qc3#
- 1...Rxe5+
- 2.Bxe5#
- 1...Bd3+
- 2.Qxd3#
- 1...fxe6+
- 2.Sxe6#
- 1...Bxc4
- 2.Sc2#
- 1...Rc1
- 2.Qe4#
- 2.Qf2#
- 2.Qf4#
- 1...Re3
- 2.Qd5#
- 1...Bh3+!
- threat
- 1.Kxf7?
- 1...Rxe5
- 2.Bxe5#
- 1...Bxc4
- 2.Sc2#
- 1...Ra1
- 2.Qf4#
- 1...Rb1
- 2.Qf4#
- 1...Rc1
- 2.Qf4#
- 1...Rd1
- 2.Qf4#
- 1...Re2
- 2.Qd3#
- 1...Re3
- 2.Qd5#
- 1...Re4
- 2.Qc3#
- 1...Ra5
- 2.Sc6#
- 1...Rb6
- 2.Bxc5#
- 1...Rc6
- 2.Sxc6#
- 1...Be2
- 2.Qf4#
- 1...Bg2
- 2.Qd3#
- 1...Bd3
- 2.Qxd3#
- 1...Bh3
- 2.Qd3#
- 1...Bb6
- 2.Sc6#
- 1...Bb8
- 2.Bxc5#
- 1...Rxd6!
- 1...Rxe5
- 1.Rxa7?
- 1...Rxe5
- 2.Bxe5#
- 1...Rxd6
- 2.Rxd6#
- 1...Rxa7
- 2.Sc6#
- 1...Bxc4
- 2.Sc2#
- 1...fxe6
- 2.Sxe6#
- 1...Ra5
- 2.Sc6#
- 1...Ra1
- 2.Qf4#
- 1...Rb1
- 2.Qf4#
- 1...Rc1
- 2.Qf4#
- 1...Rd1
- 2.Qf4#
- 1...Re2
- 2.Qd3#
- 1...Re3
- 2.Qd5#
- 1...Re4
- 2.Qc3#
- 1...Rc6
- 2.Sxc6#
- 1...Be2
- 2.Qf4#
- 1...Bg2
- 2.Qd3#
- 1...Bd3
- 2.Qxd3#
- 1...Bh3
- 2.Qd3#
- 1...Rb6!
- 1...Rxe5
- 1.b3?
- threat
- 2.Sc2#
- 2.Sb5#
- 1...Bxc4
- 2.Sc2#
- 1...Re3
- 2.Sb5#
- 1...Bd3
- 2.Sb5#
- 2.Qxd3#
- 1...Rb6
- 2.Sc2#
- 2.Bxc5#
- 1...Rc1
- 2.Sb5#
- 1...Re2
- 2.Sb5#
- 2.Qd3#
- 1...Ra5
- 2.Sc2#
- 2.Sc6#
- 1...axb3!
- threat
- 1.Kf5?
- Keys
- 1.Rc8!
- 1...Rxe5
- 2.Bxe5#
- 1...Rxd6
- 2.Rxd6#
- 1...Bxc4
- 2.Sc2#
- 1...fxe6
- 2.Sxe6#
- 1...Rb6
- 2.Bxc5#
- 1...Ra1
- 2.Qf4#
- 1...Rb1
- 2.Qf4#
- 1...Rc1
- 2.Qf4#
- 1...Rd1
- 2.Qf4#
- 1...Re2
- 2.Qd3#
- 1...Re3
- 2.Qd5#
- 1...Re4
- 2.Qc3#
- 1...Ra5
- 2.Sc6#
- 1...Rc6
- 2.Sxc6#
- 1...Be2
- 2.Qf4#
- 1...Bg2
- 2.Qd3#
- 1...Bd3
- 2.Qxd3#
- 1...Bh3
- 2.Qd3#
- 1...Bb6
- 2.Sc6#
- 1...Bb8
- 2.Bxc5#
- 1...Rxe5
- 1.Rc8!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD::QAR2(C)
- R(a);S_CUTB(b)::QAR1(C)
- R(a);SBLOCK::QAR1(C)
- R(a);SBLOCK::QAB1(C)
- R(a);OGATE,XP(E)::B(F),XR(a)
- R(f);N_GUARD::S(J)
- R(f);S_CUTB(g)::B(F),XP(e)
- R(f);N_GUARD::S(J),XR(f)
- R(f);OGATE,P_PINR(G),XB(F)::R(G),XR(f)
- B(b);S_CUTR(a)::QAR2(C)
- B(b);N_GUARD::QAR1(C)
- B(b);N_GUARD::QAR1(C),XB(b)
- B(b);SBLOCK,XB(D)::S(B)
- B(g);S_CUTR(f)::S(J)
- B(g);N_GUARD::B(F),XP(e)
- P(h);XR(G)::S(J),XP(h)
- Tries
- Try
- K(H);P-FLIGHT
- Threat
- QAB1(C)
- Vars
- R(a);CHECK,OGATE,XP(E)::B(F),XR(a)
- B(b);CHECK,N_GUARD::QAR1(C),XB(b)
- P(h);CHECK,XR(G)::S(J),XP(h)
- B(b);SBLOCK,XB(D)::S(B)
- R(a);SBLOCK::QAR1(C)
- Refutation
- B(b);CHECK
- Try
- K(H);P-FLIGHT,XP(h)
- Vars
- R(a);OGATE,XP(E)::B(F),XR(a)
- B(b);P_PINR(G),SBLOCK,XB(D)::S(B)
- R(a);N_GUARD::QAR2(C)
- R(a);S_CUTB(b)::QAR1(C)
- R(a);SBLOCK::QAR1(C)
- R(a);SBLOCK::QAB1(C)
- R(f);N_GUARD::S(J)
- R(f);S_CUTB(g)::B(F),XP(e)
- R(f);N_GUARD::S(J),XR(f)
- B(b);S_CUTR(a)::QAR2(C)
- B(b);N_GUARD::QAR1(C)
- B(b);N_GUARD::QAR1(C),XB(b)
- B(g);S_CUTR(f)::S(J)
- B(g);N_GUARD::B(F),XP(e)
- Refutation
- R(f);XB(F)
- Try
- R(I);XB(g)
- Vars
- R(a);OGATE,XP(E)::B(F),XR(a)
- R(f);OGATE,P_PINR(G),XB(F)::R(G),XR(f)
- R(f);N_GUARD,XR(I)::S(J)
- B(b);SBLOCK,XB(D)::S(B)
- P(h);XR(G)::S(J),XP(h)
- R(f);N_GUARD::S(J)
- R(a);N_GUARD::QAR2(C)
- R(a);S_CUTB(b)::QAR1(C)
- R(a);SBLOCK::QAR1(C)
- R(a);SBLOCK::QAB1(C)
- R(f);N_GUARD::S(J),XR(f)
- B(b);S_CUTR(a)::QAR2(C)
- B(b);N_GUARD::QAR1(C)
- B(b);N_GUARD::QAR1(C),XB(b)
- Refutation
- R(f);
- Try
- P(A);
- Threat
- DUALS(2)
- Vars
- B(b);XB(D)::S(B)
- R(a);::S(B)
- Refutation
- P(c);XP(A)
- Try
- Actual
- R(I);
- Vars
- R(a);OGATE,XP(E)::B(F),XR(a)
- R(f);OGATE,P_PINR(G),XB(F)::R(G),XR(f)
- B(b);SBLOCK,XB(D)::S(B)
- P(h);XR(G)::S(J),XP(h)
- R(f);S_CUTB(g)::B(F),XP(e)
- R(a);N_GUARD::QAR2(C)
- R(a);S_CUTB(b)::QAR1(C)
- R(a);SBLOCK::QAR1(C)
- R(a);SBLOCK::QAB1(C)
- R(f);N_GUARD::S(J)
- R(f);N_GUARD::S(J),XR(f)
- B(b);S_CUTR(a)::QAR2(C)
- B(b);N_GUARD::QAR1(C)
- B(b);N_GUARD::QAR1(C),XB(b)
- B(g);S_CUTR(f)::S(J)
- B(g);N_GUARD::B(F),XP(e)
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).