MESON Chess Problem Database
Problem Display
PID: 70819 (8/B1p5/2K3p1/RP2kpP1/3N1p1n/3Pp3/3p3N/3B2Q1 w - - 0 1)
Servais, Albert
Parallele 50, 1952
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Sg2
- 2.Shf3#
- 1...Sf3
- 2.Shxf3#
- 1...e2
- 2.b6#
- 1...f3
- 2.Qxe3#
- 1...Sg2
- Tries
- 1.Kc5?
- 1...f3
- 2.Qxe3#
- 1...Sg2
- 2.Shf3#
- 1...Sf3
- 2.Shxf3#
- 1...c6
- 2.Bb8#
- 1...e2!
- 1...f3
- 1.Bc5?
- 1...f3
- 2.Qxe3#
- 1...Sg2
- 2.Shf3#
- 1...Sf3
- 2.Shxf3#
- 1...e2!
- 1...f3
- 1.Bb6?
- 1...f3
- 2.Qxe3#
- 1...Sg2
- 2.Shf3#
- 1...Sf3
- 2.Shxf3#
- 1...e2
- 2.Bxc7#
- 1...cxb6!
- 1...f3
- 1.Bb8?
- 1...f3
- 2.Qxe3#
- 1...Sg2
- 2.Shf3#
- 1...Sf3
- 2.Shxf3#
- 1...e2
- 2.Bxc7#
- 2.b6#
- 1...Kxd4!
- 1...f3
- 1.Ra1?
- 1...f3
- 2.Qxe3#
- 1...Sg2
- 2.Shf3#
- 1...Sf3
- 2.Shxf3#
- 1...e2!
- 1...f3
- 1.Ra2?
- 1...f3
- 2.Qxe3#
- 1...Sg2
- 2.Shf3#
- 1...Sf3
- 2.Shxf3#
- 1...e2!
- 1...f3
- 1.Ra3?
- 1...f3
- 2.Qxe3#
- 1...Sg2
- 2.Shf3#
- 1...Sf3
- 2.Shxf3#
- 1...e2!
- 1...f3
- 1.Ra4?
- 1...f3
- 2.Qxe3#
- 1...Sg2
- 2.Shf3#
- 1...Sf3
- 2.Shxf3#
- 1...e2!
- 1...f3
- 1.Ra6?
- 1...f3
- 2.Qxe3#
- 1...Sg2
- 2.Shf3#
- 1...Sf3
- 2.Shxf3#
- 1...e2!
- 1...f3
- 1.Qf2?
- 1...f3
- 2.Qxe3#
- 1...e2
- 2.Qxe2#
- 2.b6#
- 1...Sg2
- 2.Shf3#
- 1...Sf3
- 2.Shxf3#
- 1...exf2!
- 1...f3
- 1.Qf1?
- 1...e2
- 2.Qxe2#
- 1...Sg2
- 2.Shf3#
- 1...Sf3
- 2.Shxf3#
- 1...f3!
- 1...e2
- 1.Qh1?
- threat
- 2.Qd5#
- 1...Sg2
- 2.Shf3#
- 1...Sf3
- 2.Shxf3#
- 1...f3!
- threat
- 1.Qg2?
- threat
- 2.Qd5#
- 1...Sxg2
- 2.Shf3#
- 1...Sf3
- 2.Shxf3#
- 1...f3!
- threat
- 1.Kc5?
- Keys
- 1.Qg4!
- 1...fxg4
- 2.Sxg4#
- 1...e2
- 2.Qxe2#
- 1...Sg2
- 2.Shf3#
- 1...Sf3
- 2.Shxf3#
- 1...f3
- 2.b6#
- 1...fxg4
- 1.Qg4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- P(b);::R(F)+P(G)
- P(c);N_GUARD::QAR2(B),XP(b)
- Tries
- Try
- K(I);P-FLIGHT
- Vars
- P(c);N_GUARD::QAR2(B),XP(b)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- P(h);OGATEB::B(J)
- Refutation
- P(b);
- Try
- B(J);
- Vars
- P(c);N_GUARD::QAR2(B),XP(b)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- Refutation
- P(b);
- Try
- B(J);
- Vars
- P(c);N_GUARD::QAR2(B),XP(b)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- P(b);::B(J),XP(h)
- Refutation
- P(h);XB(J)
- Try
- B(J);P_PINP(h)
- Vars
- P(c);N_GUARD::QAR2(B),XP(b)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- Refutation
- K(e);N_SPINP(h),P_SPINP(b),S_FLIGHT,XS(E)
- Try
- R(F);
- Vars
- P(c);N_GUARD::QAR2(B),XP(b)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- Refutation
- P(b);
- Try
- R(F);
- Vars
- P(c);N_GUARD::QAR2(B),XP(b)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- Refutation
- P(b);
- Try
- R(F);
- Vars
- P(c);N_GUARD::QAR2(B),XP(b)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- Refutation
- P(b);
- Try
- R(F);
- Vars
- P(c);N_GUARD::QAR2(B),XP(b)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- Refutation
- P(b);
- Try
- R(F);
- Vars
- P(c);N_GUARD::QAR2(B),XP(b)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- Refutation
- P(b);
- Try
- Q(B);
- Vars
- P(c);N_GUARD::QAR2(B),XP(b)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- Refutation
- P(b);XQ(B)
- Try
- Q(B);
- Vars
- P(b);OGATEB::QAR(B),XP(b)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- Refutation
- P(c);
- Try
- Q(B);
- Threat
- QAR1(B)
- Vars
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- Refutation
- P(c);
- Try
- Q(B);
- Threat
- QAR1(B)
- Vars
- S(d);N_GUARD,XQ(B)::S(C)
- S(d);N_GUARD::S(C),XS(d)
- Refutation
- P(c);
- Try
- Actual
- Q(B);
- Vars
- P(f);XQ(B)::S(C),XP(f)
- P(b);OGATEB::QAR(B),XP(b)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- P(c);::R(F)+P(G)
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).