MESON Chess Problem Database
Problem Display
PID: 11358 (8/8/4p3/Kp4B1/8/pQ1R1n2/r1p1kpN1/5b1R w - - 0 1)
Sachsel, Robert
Chess, 1938
#2
6 + 9
SOLUTION
- SOUND
- Sets
- 1...Se1
- 2.Sf4#
- 2.Rd2#
- 1...Sg1
- 2.Rd2#
- 1...Sd2
- 2.Rxd2#
- 1...Sh2
- 2.Rd2#
- 1...Sd4
- 2.Rd2#
- 1...Sh4
- 2.Rd2#
- 1...Se5
- 2.Rd2#
- 1...c1S
- 2.Qd1#
- 1...c1B
- 2.Qd1#
- 1...Se1
- Tries
- 1.Rxf3?
- threat
- 2.Qd3#
- 1...Kd1
- 2.Qd3#
- 1...c1S!
- threat
- 1.Rd4?
- threat
- 2.Qd3#
- 2.Qe3#
- 2.Qxb5#
- 1...Sxg5
- 2.Qd3#
- 2.Qe3#
- 1...Sd2
- 2.Rxd2#
- 1...c1Q
- 2.Qd3#
- 1...c1S
- 2.Re4#
- 2.Qd1#
- 2.Qe3#
- 1...c1B
- 2.Qd1#
- 2.Qd3#
- 2.Qxb5#
- 1...c1R
- 2.Re4#
- 2.Qd3#
- 2.Qe3#
- 1...Rb2
- 2.Qd3#
- 2.Qe3#
- 1...Se1
- 2.Sf4#
- 2.Rd2#
- 2.Qe3#
- 1...Sg1
- 2.Rd2#
- 2.Qd3#
- 2.Qe3#
- 1...Sh2
- 2.Rd2#
- 2.Qd3#
- 2.Qe3#
- 1...Sh4
- 2.Rd2#
- 2.Qd3#
- 2.Qe3#
- 1...Se5
- 2.Rd2#
- 2.Qe3#
- 1...b4
- 2.Qc4#
- 2.Qd3#
- 2.Qe3#
- 1...Sxd4!
- threat
- 1.Rd6?
- threat
- 2.Qd3#
- 2.Qe3#
- 2.Qxb5#
- 1...Sxg5
- 2.Qd3#
- 2.Qe3#
- 1...Sd2
- 2.Rxd2#
- 1...c1Q
- 2.Qd3#
- 1...c1S
- 2.Qd1#
- 2.Qe3#
- 1...c1B
- 2.Qd1#
- 2.Qd3#
- 2.Qxb5#
- 1...c1R
- 2.Qd3#
- 2.Qe3#
- 1...Rb2
- 2.Qd3#
- 2.Qe3#
- 1...Se1
- 2.Sf4#
- 2.Rd2#
- 2.Qe3#
- 1...Sg1
- 2.Rd2#
- 2.Qd3#
- 2.Qe3#
- 1...Sh2
- 2.Rd2#
- 2.Qd3#
- 2.Qe3#
- 1...Sh4
- 2.Rd2#
- 2.Qd3#
- 2.Qe3#
- 1...Se5
- 2.Rd2#
- 2.Qe3#
- 1...b4
- 2.Qc4#
- 2.Qd3#
- 2.Qe3#
- 1...Sd4!
- threat
- 1.Rd7?
- threat
- 2.Qd3#
- 2.Qe3#
- 2.Qxb5#
- 1...Sxg5
- 2.Qd3#
- 2.Qe3#
- 1...Sd2
- 2.Rxd2#
- 1...c1Q
- 2.Qd3#
- 1...c1S
- 2.Qd1#
- 2.Qe3#
- 1...c1B
- 2.Qd1#
- 2.Qd3#
- 2.Qxb5#
- 1...c1R
- 2.Qd3#
- 2.Qe3#
- 1...Rb2
- 2.Qd3#
- 2.Qe3#
- 1...Se1
- 2.Sf4#
- 2.Rd2#
- 2.Qe3#
- 1...Sg1
- 2.Rd2#
- 2.Qd3#
- 2.Qe3#
- 1...Sh2
- 2.Rd2#
- 2.Qd3#
- 2.Qe3#
- 1...Sh4
- 2.Rd2#
- 2.Qd3#
- 2.Qe3#
- 1...Se5
- 2.Rd2#
- 2.Qe3#
- 1...b4
- 2.Qc4#
- 2.Qd3#
- 2.Qe3#
- 1...Sd4!
- threat
- 1.Rd8?
- threat
- 2.Qd3#
- 2.Qe3#
- 2.Qxb5#
- 1...Sxg5
- 2.Qd3#
- 2.Qe3#
- 1...Sd2
- 2.Rxd2#
- 1...c1Q
- 2.Qd3#
- 1...c1S
- 2.Qd1#
- 2.Qe3#
- 1...c1B
- 2.Qd1#
- 2.Qd3#
- 2.Qxb5#
- 1...c1R
- 2.Qd3#
- 2.Qe3#
- 1...Rb2
- 2.Qd3#
- 2.Qe3#
- 1...Se1
- 2.Sf4#
- 2.Rd2#
- 2.Qe3#
- 1...Sg1
- 2.Rd2#
- 2.Qd3#
- 2.Qe3#
- 1...Sh2
- 2.Rd2#
- 2.Qd3#
- 2.Qe3#
- 1...Sh4
- 2.Rd2#
- 2.Qd3#
- 2.Qe3#
- 1...Se5
- 2.Rd2#
- 2.Qe3#
- 1...b4
- 2.Qc4#
- 2.Qd3#
- 2.Qe3#
- 1...Sd4!
- threat
- 1.Qxc2+?
- 1...Sd2
- 2.Re3#
- 1...Rxc2!
- 1...Sd2
- 1.Qd5?
- threat
- 2.Re3#
- 2.Qxf3#
- 2.Qe4#
- 1...Bxg2
- 2.Re3#
- 2.Qe4#
- 1...Sxg5
- 2.Rd2#
- 2.Re3#
- 1...Sd2
- 2.Rxd2#
- 1...Sd4
- 2.Rd2#
- 2.Qe4#
- 1...c1Q
- 2.Qxf3#
- 1...c1B
- 2.Qxf3#
- 1...Se1
- 2.Sf4#
- 2.Rd2#
- 2.Re3#
- 2.Qe4#
- 1...Sg1
- 2.Rd2#
- 2.Re3#
- 2.Qe4#
- 1...Sh2
- 2.Rd2#
- 2.Re3#
- 2.Qe4#
- 1...Sh4
- 2.Rd2#
- 2.Re3#
- 2.Qe4#
- 1...Se5
- 2.Rd2#
- 2.Re3#
- 2.Qe4#
- 1...exd5!
- threat
- 1.Rxf3?
- Keys
- 1.Rd1!
- threat
- 2.Qd3#
- 1...Kxd1
- 2.Qxf3#
- 1...cxd1Q
- 2.Qe3#
- 1...cxd1S
- 2.Qxb5#
- 1...cxd1B
- 2.Qe3#
- 2.Qxb5#
- 1...cxd1R
- 2.Qe3#
- 1...c1S
- 2.Sf4#
- 1...Se1
- 2.Rd2#
- 1...Sd2
- 2.Rxd2#
- 1...Se5
- 2.Rd2#
- threat
- 1.Rd1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 5
- REMOVED MATES = 5
- Sets
- S(g);N_GUARD::R1(D)
- S(g);N_GUARD::R1(D),XS(g)
- P(c);OGATE::QAB1(C)
- Tries
- Try
- R(D);XS(g)
- Threat
- QAB1(C)
- Vars
- K(d);P_SPINB(a),P_SPINP(c),S_FLIGHT::QAR2(C)
- Refutation
- P(c);
- Try
- R(D);
- Threat
- DUALS(3)
- Vars
- S(g);N_GUARD::R1(D),XS(g)
- P(c);::QAB1(C)
- Refutation
- S(g);XR(D)
- Try
- R(D);
- Threat
- DUALS(3)
- Vars
- S(g);N_GUARD::R1(D),XS(g)
- P(c);::QAB1(C)
- Refutation
- S(g);
- Try
- R(D);
- Threat
- DUALS(3)
- Vars
- S(g);N_GUARD::R1(D),XS(g)
- P(c);::QAB1(C)
- Refutation
- S(g);
- Try
- R(D);
- Threat
- DUALS(3)
- Vars
- S(g);N_GUARD::R1(D),XS(g)
- P(c);::QAB1(C)
- Refutation
- S(g);
- Try
- Q(C);CHECK,XP(c)
- Vars
- S(g);P_SPINS(g)::R1(D)
- Refutation
- R(b);XQ(C)
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- S(g);N_GUARD::R1(D),XS(g)
- P(c);::QAB1(C),XS(g)
- Refutation
- P(i);XQ(C)
- Try
- Actual
- R(D);
- Threat
- QAB1(C)
- Vars
- K(d);P_SPINB(a),P_SPINP(c),S_FLIGHT,XR(D)::QAB(C),XS(g)
- P(c);SBLOCK,XR(D)::QAR1(C)
- P(c);SBLOCK,XR(D)::QAB(C),XP(h)
- P(c);::S(B)
- S(g);N_GUARD::R1(D)
- S(g);N_GUARD::R1(D),XS(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).