MESON Chess Problem Database
Problem Display
PID: 132102 (5rbq/1B1P1N2/4P3/rPP3R1/QPpk1B1p/7R/1P3n2/5K2 w - - 0 1)
Savournin, Jacques
Comm., Boyer MT, 1988
#2
13 + 8
SOLUTION
- SOUND
- Sets
- 1...Qe5
- 2.Bxe5#
- 1...Qh5
- 2.Be5#
- 1...Qh6
- 2.Be5#
- 1...Qh7
- 2.Be5#
- 1...Sd1
- 2.Qxd1#
- 1...Sh1
- 2.Qd1#
- 1...Sd3
- 2.Be3#
- 1...Sxh3
- 2.Qd1#
- 1...Se4
- 2.Rd5#
- 1...Sg4
- 2.Qd1#
- 1...c3
- 2.bxa5#
- 1...Qe5
- Tries
- 1.Ke2?
- threat
- 2.Be3#
- 1...Qe5+
- 2.Bxe5#
- 1...c3
- 2.bxa5#
- 1...Sd1
- 2.Qxd1#
- 1...Sg4
- 2.Qd1#
- 1...Qh5+!
- threat
- 1.Sd6?
- threat
- 2.Rd5#
- 1...Qe5
- 2.Bxe5#
- 1...Qh5
- 2.Be5#
- 1...Rf5
- 2.Sxf5#
- 1...Bxe6!
- threat
- 1.Bd2?
- threat
- 2.Bc3#
- 1...c3
- 2.bxa5#
- 1...Sd1
- 2.Rg4#
- 1...Se4
- 2.Rd5#
- 1...Sxh3!
- threat
- 1.Bg2?
- threat
- 2.Rd5#
- 1...c3
- 2.bxa5#
- 1...Qe5
- 2.Bxe5#
- 1...Qh5
- 2.Be5#
- 1...Se4!
- threat
- 1.Rc3?
- threat
- 2.Be3#
- 1...Qe5
- 2.Bxe5#
- 1...Sd1
- 2.Qxd1#
- 1...Sg4
- 2.Qd1#
- 1...Sd3!
- threat
- 1.Qd1+?
- 1...Sd3
- 2.Be3#
- 1...Sxd1!
- 1...Sd3
- 1.Qc2?
- threat
- 2.Be3#
- 2.Rd5#
- 2.Qxf2#
- 2.Qc3#
- 1...Sxh3
- 2.Rd5#
- 2.Qd1#
- 2.Qe4#
- 2.Qd2#
- 2.Qc3#
- 1...c3
- 2.Qxc3#
- 1...Sd3
- 2.Be3#
- 2.Qc3#
- 1...Qe5
- 2.Bxe5#
- 2.Qc3#
- 1...Qh5
- 2.Be3#
- 2.Be5#
- 2.Qxf2#
- 2.Qc3#
- 1...Ra3
- 2.Rd5#
- 1...Sd1
- 2.Rd5#
- 2.Qxd1#
- 2.Qe4#
- 2.Qd2#
- 1...Sh1
- 2.Be3#
- 2.Rd5#
- 2.Qd1#
- 2.Qe4#
- 2.Qd2#
- 2.Qc3#
- 1...Se4
- 2.Be3#
- 2.Rd5#
- 2.Qxe4#
- 1...Sg4
- 2.Rd5#
- 2.Qd1#
- 2.Qe4#
- 2.Qd2#
- 2.Qc3#
- 1...Ra1+!
- threat
- 1.Ke2?
- Keys
- 1.Se5!
- threat
- 2.Be3#
- 1...Qxe5
- 2.Bxe5#
- 1...Rxf4
- 2.d8Q#
- 2.d8R#
- 1...Sxh3
- 2.Qd1#
- 1...Rf5
- 2.d8Q#
- 2.d8R#
- 1...Sd1
- 2.Qxd1#
- 1...Sh1
- 2.Qd1#
- 1...Sd3
- 2.Sf3#
- 1...Se4
- 2.Sc6#
- 1...Sg4
- 2.Qd1#
- threat
- 1.Se5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 4
- Sets
- Q(h);N_GUARD::B(F),XQ(h)
- Q(h);N_GUARD::B(F)
- S(a);N_GUARD::QAR(D),XS(a)
- S(a);N_GUARD::QAR(D)
- S(a);SBLOCK::B(F)
- S(a);N_GUARD,XR(C)::QAR(D)
- S(a);SBLOCK::R1(I)
- P(b);::QAR(D)+P(E),XR(e)
- Tries
- Try
- K(A);S_FLIGHT
- Threat
- B(F)
- Vars
- Q(h);CHECK,N_GUARD::B(F),XQ(h)
- P(b);::QAR(D)+P(E),XR(e)
- S(a);N_GUARD::QAR(D),XS(a)
- S(a);N_GUARD::QAR(D)
- Refutation
- Q(h);CHECK
- Try
- S(M);
- Threat
- R1(I)
- Vars
- Q(h);N_GUARD::B(F),XQ(h)
- Q(h);N_GUARD::B(F)
- R(f);N_GUARD::S(M),XR(f)
- Refutation
- B(g);XP(J)
- Try
- B(F);
- Threat
- B(F)
- Vars
- P(b);::QAR(D)+P(E),XR(e)
- S(a);N_GUARD,P_PINS(M)::R(I)
- S(a);P_PINS(M),SBLOCK::R1(I)
- Refutation
- S(a);P_PINS(M),XR(C)
- Try
- B(K);
- Threat
- R1(I)
- Vars
- P(b);::QAR(D)+P(E),XR(e)
- Q(h);N_GUARD::B(F),XQ(h)
- Q(h);N_GUARD::B(F)
- Refutation
- S(a);
- Try
- R(C);
- Threat
- B(F)
- Vars
- Q(h);N_GUARD::B(F),XQ(h)
- S(a);N_GUARD::QAR(D),XS(a)
- S(a);N_GUARD::QAR(D)
- Refutation
- S(a);
- Try
- Q(D);CHECK
- Vars
- S(a);P_SPINS(a)::B(F)
- Refutation
- S(a);XQ(D)
- Try
- Q(D);
- Threat
- DUALS(4)
- Vars
- P(b);::QAB1(D),XP(b)
- R(e);::R1(I)
- Refutation
- R(e);CHECK
- Try
- Actual
- S(M);
- Threat
- B(F)
- Vars
- Q(h);OGATE,XS(M)::B(F),XQ(h)
- R(f);N_GUARD,XB(F)::P=Q
- S(a);N_GUARD,P_PINB(F),XR(C)::QAR(D)
- R(f);N_GUARD::P=Q
- S(a);N_GUARD,P_PINB(F)::QAR(D),XS(a)
- S(a);N_GUARD,P_PINB(F)::QAR(D)
- S(a);P_PINB(F),SBLOCK::S(M)
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).