MESON Chess Problem Database
Problem Display
PID: 17886 (3R4/rp2p2p/pN6/2k5/BRN1nn1q/K4Q2/1pp2p1B/1bb5 w - - 0 1)
Flad, Gunter
Schach, 1951
#2
8 + 14
SOLUTION
- SOUND
- Sets
- 1...Be3
- 2.Qxe3#
- 1...Sd2
- 2.Qe3#
- 1...Se2
- 2.Rd5#
- 1...Sg2
- 2.Rd5#
- 1...Sd3
- 2.Rd5#
- 1...Sh3
- 2.Rd5#
- 1...Sd5
- 2.Rxd5#
- 1...Sh5
- 2.Rd5#
- 1...Se6
- 2.Rd5#
- 2.Qf5#
- 1...Sg6
- 2.Rd5#
- 1...Be3
- Tries
- 1.Sd2?
- threat
- 2.Sb3#
- 2.Sxe4#
- 2.Qe3#
- 1...Sxd2
- 2.Qe3#
- 1...f1S
- 2.Sb3#
- 2.Sxe4#
- 1...Qg3
- 2.Sb3#
- 2.Sxe4#
- 1...Qf6
- 2.Sb3#
- 2.Sxe4#
- 1...Qh3
- 2.Sb3#
- 2.Sxe4#
- 1...Ba2
- 2.Sxe4#
- 2.Qe3#
- 1...Sc3
- 2.Sb3#
- 2.Qxc3#
- 2.Qe3#
- 1...Sg3
- 2.Sb3#
- 2.Qxf2#
- 2.Qc3#
- 2.Qe3#
- 1...Sg5
- 2.Sb3#
- 2.Qc3#
- 2.Qe3#
- 1...Sd6
- 2.Sb3#
- 2.Sd7#
- 2.Qe3#
- 1...Sf6
- 2.Sb3#
- 2.Qc3#
- 2.Qe3#
- 1...Se2
- 2.Sb3#
- 2.Rd5#
- 2.Rc8#
- 1...Sg2
- 2.Sb3#
- 2.Rd5#
- 2.Rc8#
- 1...Sd3
- 2.Sb3#
- 2.Rd5#
- 2.Rc8#
- 2.Qe3#
- 1...Sh3
- 2.Sb3#
- 2.Rd5#
- 2.Rc8#
- 2.Qe3#
- 1...Sd5
- 2.Sb3#
- 2.Sd7#
- 2.Rxd5#
- 1...Sh5
- 2.Sb3#
- 2.Rd5#
- 2.Rc8#
- 2.Qe3#
- 1...Se6
- 2.Sb3#
- 2.Rd5#
- 2.Qf5#
- 1...Sg6
- 2.Sb3#
- 2.Rd5#
- 2.Rc8#
- 2.Qe3#
- 1...Bxd2!
- threat
- 1.Sa5?
- threat
- 2.Sb3#
- 1...Sd2
- 2.Qe3#
- 1...Ba2!
- threat
- 1.Sd7+?
- 1...Kd4
- 2.Scb6#
- 1...Kd5!
- 1...Kd4
- 1.Rb5+?
- 1...Kc6
- 2.Rc8#
- 1...axb5!
- 1...Kc6
- 1.Qd3?
- threat
- 2.Sd7#
- 2.Rc8#
- 2.Qd4#
- 1...Sxd3
- 2.Rd5#
- 1...Qg3
- 2.Sd7#
- 2.Rc8#
- 1...Qf6
- 2.Sd7#
- 1...Qg4
- 2.Qd4#
- 1...Qh6
- 2.Sd7#
- 2.Qd4#
- 1...Ra8
- 2.Sd7#
- 2.Qd4#
- 1...Be3
- 2.Sd7#
- 2.Rc8#
- 2.Qxe3#
- 1...Sd6
- 2.Sd7#
- 1...Sf6
- 2.Rc8#
- 2.Qd4#
- 1...Se2
- 2.Sd7#
- 2.Rd5#
- 2.Rc8#
- 2.Qd5#
- 1...Sd5
- 2.Sd7#
- 2.Rxd5#
- 2.Qxd5#
- 1...Se6
- 2.Sd7#
- 2.Rd5#
- 2.Qd5#
- 1...e5
- 2.Sd7#
- 2.Rc8#
- 1...Qh3!
- threat
- 1.Sd2?
- Keys
- 1.Sd6!
- threat
- 2.Sxe4#
- 1...Sxd6
- 2.Sd7#
- 1...exd6
- 2.Rc8#
- 1...Sd2
- 2.Qe3#
- 1...Sc3
- 2.Qxc3#
- 1...Sg3
- 2.Qc3#
- 1...Sg5
- 2.Qc3#
- 1...Sf6
- 2.Qc3#
- 1...Se2
- 2.Rc8#
- 1...Sg2
- 2.Rc8#
- 1...Sd3
- 2.Rc8#
- 1...Sh3
- 2.Rc8#
- 1...Sd5
- 2.Sd7#
- 1...Sh5
- 2.Rc8#
- 1...Se6
- 2.Qf5#
- 1...Sg6
- 2.Rc8#
- threat
- 1.Sd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 7
- ADDED MATES = 7
- REMOVED MATES = 1
- Sets
- B(b);N_GUARD::QAB(C),XB(b)
- S(f);S_CUTB(b)::QAB(C)
- S(g);N_GUARD::R1(H)
- S(g);N_GUARD::R1(H),XS(g)
- Tries
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- S(f);XS(F)::QAB(C)
- Refutation
- B(b);XS(F)
- Try
- S(F);
- Threat
- S(F)
- Vars
- S(f);S_CUTB(b)::QAB(C)
- Refutation
- B(a);
- Try
- S(G);CHECK
- Vars
- K(i);S_FLIGHT::R(E)+S(F)
- Refutation
- K(i);P-FLIGHT,P_SPINS(f)
- Try
- R(E);CHECK
- Vars
- K(i);P-FLIGHT,P_SPINS(f)::R(H)
- Refutation
- P(j);P_PINB(D),XR(E)
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- S(g);N_GUARD,XQ(C)::R1(H)
- Q(h);::S(G)
- Q(h);::QAB1(C)
- S(f);::S(G)
- Refutation
- Q(h);P_PINQ(C)
- Try
- Actual
- S(F);
- Threat
- S(F),XS(f)
- Vars
- S(f);SBLOCK,XS(F)::S(G)
- P(m);SBLOCK,XS(F)::R(H)
- S(f);S_CUTB(b)::QAB(C)
- S(f);N_GUARD::QAR2(C),XS(f)
- S(f);N_GUARD::QAR2(C)
- S(g);::R(H)
- S(g);SBLOCK::S(G)
- S(g);OGATE::QAR(C)
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).