MESON Chess Problem Database
Problem Display
PID: 174110 (3R2q1/8/1b2bQpN/p3r1p1/4N3/r3kpP1/4p3/1B2K3 w - - 0 1)
Muller, Dieter
Boletim da UBP, 1986
#2
7 + 11
SOLUTION
- SOUND
- Sets
- 1...Rc5
- 2.Qd4#
- 1...Rf5
- 2.Sg4#
- 1...Ba2
- 2.Sg4#
- 1...Bb3
- 2.Sg4#
- 1...Bc4
- 2.Sg4#
- 1...Bg4
- 2.Sxg4#
- 1...Bd5
- 2.Qxb6#
- 1...Bf5
- 2.Qxg5#
- 1...Bf7
- 2.Sg4#
- 1...f2+
- 2.Qxf2#
- 1...g4
- 2.Qf4#
- 1...Rc5
- Tries
- 1.Sxg5?
- threat
- 2.Qxe5#
- 2.Qxf3#
- 2.Qf4#
- 1...f2+
- 2.Qxf2#
- 1...Qxd8
- 2.Qxe5#
- 2.Qf4#
- 1...Rxg5
- 2.Qxg5#
- 2.Qf4#
- 1...Bxd8
- 2.Qxe5#
- 2.Qf4#
- 1...Bd5
- 2.Qf4#
- 2.Qxb6#
- 1...Bd7
- 2.Qxe5#
- 2.Qf4#
- 1...Qg7
- 2.Qxf3#
- 2.Qf4#
- 1...Qf7
- 2.Qxe5#
- 1...Qf8
- 2.Qxe5#
- 1...Qh8
- 2.Qxf3#
- 2.Qf4#
- 1...Ra4
- 2.Rd3#
- 2.Qxf3#
- 1...Re4
- 2.Qxf3#
- 1...Rb5
- 2.Qxf3#
- 2.Qf4#
- 1...Rc5
- 2.Qd4#
- 2.Qxf3#
- 2.Qf4#
- 1...Rd5
- 2.Qf4#
- 1...Rf5
- 2.Sg4#
- 1...Bd4
- 2.Qxf3#
- 2.Qf4#
- 1...Bc7
- 2.Qxf3#
- 2.Qf4#
- 1...Bg4
- 2.Sxg4#
- 2.Qxe5#
- 2.Qf4#
- 1...Bf5!
- threat
- 1.Rd3+?
- 1...Kxe4
- 2.Qxf3#
- 1...Rxd3!
- 1...Kxe4
- 1.Sxg5?
- Keys
- 1.Sd2!
- threat
- 2.Qxe5#
- 2.Qxf3#
- 1...f2+
- 2.Qxf2#
- 1...Qxd8
- 2.Qxe5#
- 1...Bxd8
- 2.Qxe5#
- 1...Bd5
- 2.Qxb6#
- 1...Bd7
- 2.Qxe5#
- 1...Qf7
- 2.Qxe5#
- 1...Qg7
- 2.Qxf3#
- 1...Qf8
- 2.Qxe5#
- 1...Qh8
- 2.Qxf3#
- 1...Ra4
- 2.Rd3#
- 2.Qxf3#
- 1...Re4
- 2.Qxf3#
- 1...Rb5
- 2.Qxf3#
- 1...Rc5
- 2.Qd4#
- 2.Qxf3#
- 1...Rd5
- 2.Sc4#
- 1...Rf5
- 2.Sg4#
- 1...Bd4
- 2.Qxf3#
- 1...Bc7
- 2.Qxf3#
- 1...Bg4
- 2.Sxg4#
- 2.Qxe5#
- 1...Bf5
- 2.Qxg5#
- 1...g4
- 2.Qxe5#
- 2.Qf4#
- threat
- 1.Sd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 12
- REMOVED MATES = 7
- Sets
- R(f);OGATE::QAB1(E)
- R(f);S_CUTB(i)::S(F)
- B(i);N_GUARD::S(F)
- B(i);N_GUARD::S(F),XB(i)
- B(i);OGATE::QAB(E),XB(h)
- B(i);S_CUTR(f)::QAB(E),XP(g)
- P(d);CHECK,OGATE::QAB1(E),XP(d)
- P(g);N_GUARD::QAB1(E)
- Tries
- Try
- S(D);XP(g)
- Threat
- DUALS(3)
- Vars
- P(d);CHECK,OGATE::QAB1(E),XP(d)
- Q(k);::QAR2(E),XR(f)
- R(f);::QAR1(E),XP(d)
- R(f);::QAB1(E)
- R(f);S_CUTB(i)::S(F)
- Refutation
- B(i);
- Try
- R(G);CHECK
- Vars
- K(c);P-FLIGHT,XS(D)::QAB1(E),XP(d)
- Refutation
- R(b);XR(G)
- Try
- Actual
- S(D);
- Threat
- DUALS(2)
- Vars
- P(d);CHECK,OGATE::QAB1(E),XP(d)
- Q(k);XR(G)::QAR2(E),XR(f)
- B(h);XR(G)::QAR2(E),XR(f)
- B(i);OGATE::QAB(E),XB(h)
- B(i);::QAR2(E),XR(f)
- Q(k);::QAR2(E),XR(f)
- Q(k);::QAR1(E),XP(d)
- R(f);::QAR1(E),XP(d)
- R(f);S_CUTB(i)::S(D)
- R(f);S_CUTB(i)::S(F)
- B(h);::QAR1(E),XP(d)
- B(i);S_CUTR(f)::QAB(E),XP(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).