MESON Chess Problem Database
Problem Display
PID: 17169 (8/8/4n2B/3R4/B2nk3/3R1N2/5K1Q/8 w - - 0 1)
Michel, Francois
Chemnitzer Tageblatt, 1925
#2
7 + 3
SOLUTION
- SOUND
- Sets
- 1...Sc2
- 2.Sd2#
- 2.Qe5#
- 1...Se2
- 2.Sd2#
- 2.Qe5#
- 1...Sb3
- 2.Qe5#
- 1...Sb5
- 2.Sd2#
- 2.Qe5#
- 1...Sf5
- 2.Sd2#
- 2.Qe5#
- 1...Sc6
- 2.Sd2#
- 1...Sf4
- 2.R3xd4#
- 1...Sc5
- 2.R3xd4#
- 1...Sg5
- 2.R3xd4#
- 1...Sc7
- 2.R3xd4#
- 1...Sg7
- 2.R3xd4#
- 1...Sd8
- 2.R3xd4#
- 1...Sf8
- 2.R3xd4#
- 1...Sc2
- Tries
- 1.Sd2+?
- 1...Kxd3
- 2.Qg3#
- 2.Qh3#
- 1...Kxd5!
- 1...Kxd3
- 1.Bc2?
- threat
- 2.R3xd4#
- 2.Re5#
- 2.Qe5#
- 1...Sxc2
- 2.Sd2#
- 2.Qe5#
- 1...Sxf3
- 2.Rd1#
- 2.Rd2#
- 2.R3d4#
- 1...Se2
- 2.Sd2#
- 2.Rd1#
- 2.Rd2#
- 2.R3d4#
- 2.Re5#
- 2.Qe5#
- 1...Sb3
- 2.Rd1#
- 2.Rd2#
- 2.R3d4#
- 2.Re5#
- 2.Qe5#
- 1...Sb5
- 2.Sd2#
- 2.Rd1#
- 2.Rd2#
- 2.R3d4#
- 2.Re5#
- 2.Qe5#
- 1...Sf5
- 2.Sd2#
- 2.Rd1#
- 2.Rd2#
- 2.R3d4#
- 2.Re5#
- 2.Qe5#
- 1...Sc6
- 2.Sd2#
- 2.Rd1#
- 2.Rd2#
- 2.R3d4#
- 1...Sf4
- 2.R3xd4#
- 2.Re5#
- 1...Kxd5!
- threat
- 1.Bb3?
- threat
- 2.Re3#
- 1...Sxb3
- 2.Qe5#
- 1...Sc2
- 2.Sd2#
- 2.Qe5#
- 1...Sf5
- 2.Sd2#
- 2.Qe5#
- 1...Kxd3!
- threat
- 1.Bb5?
- threat
- 2.Re5#
- 2.Qe5#
- 1...Kxd5
- 2.Qe5#
- 1...Sxb5
- 2.Sd2#
- 2.Qe5#
- 1...Sc6
- 2.Sd2#
- 1...Sf4
- 2.R3xd4#
- 2.Re5#
- 1...Sxf3!
- threat
- 1.Bc6?
- threat
- 2.Re3#
- 1...Sxc6
- 2.Sd2#
- 1...Sc2
- 2.Sd2#
- 2.Qe5#
- 1...Sf5
- 2.Sd2#
- 2.R5d4#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 2.Qe5#
- 1...Kxd3!
- threat
- 1.Rd1?
- threat
- 2.Re5#
- 2.Qe5#
- 1...Sxf3
- 2.Bc2#
- 1...Sc6
- 2.Bc2#
- 1...Sf4
- 2.R1xd4#
- 2.Re5#
- 1...Kxd5!
- threat
- 1.Rd2?
- threat
- 2.Re5#
- 2.Qe5#
- 1...Sxf3
- 2.Bc2#
- 1...Sc6
- 2.Bc2#
- 1...Sf4
- 2.R2xd4#
- 2.Re5#
- 1...Kxd5!
- threat
- 1.Qg3?
- 1...Kxd3
- 2.Sd2#
- 1...Sxf3
- 2.Qxf3#
- 2.Qg6#
- 1...Sc2
- 2.Sd2#
- 2.Qe5#
- 2.Qg6#
- 1...Se2
- 2.Sd2#
- 2.Qe5#
- 2.Qg6#
- 1...Sb3
- 2.Qe5#
- 2.Qg6#
- 1...Sb5
- 2.Sd2#
- 2.Qe5#
- 2.Qg6#
- 1...Sf5
- 2.Sd2#
- 2.Qe5#
- 1...Sc6
- 2.Sd2#
- 2.Qg6#
- 1...Sf4
- 2.R3xd4#
- 1...Sc5
- 2.R3xd4#
- 1...Sg5
- 2.R3xd4#
- 1...Sc7
- 2.R3xd4#
- 1...Sg7
- 2.R3xd4#
- 1...Sd8
- 2.R3xd4#
- 1...Sf8
- 2.R3xd4#
- 1...Kxd5!
- 1...Kxd3
- 1.Qd6?
- threat
- 2.Re3#
- 1...Sc2
- 2.Sd2#
- 2.Re5#
- 2.Qe5#
- 2.Qxe6#
- 1...Sf5
- 2.Sd2#
- 2.Re5#
- 2.Qe5#
- 2.Qxe6#
- 1...Kxd3!
- threat
- 1.Qh3?
- 1...Kxd3
- 2.Sd2#
- 1...Sxf3
- 2.Qf5#
- 2.Qxf3#
- 1...Sg5
- 2.R3xd4#
- 2.R5xd4#
- 1...Sc2
- 2.Sd2#
- 2.Qf5#
- 2.Qxe6#
- 1...Se2
- 2.Sd2#
- 2.Qf5#
- 2.Qxe6#
- 1...Sb3
- 2.Qf5#
- 2.Qxe6#
- 1...Sb5
- 2.Sd2#
- 2.Qf5#
- 2.Qxe6#
- 1...Sf5
- 2.Sd2#
- 2.Qxf5#
- 1...Sc6
- 2.Sd2#
- 2.Qf5#
- 1...Sf4
- 2.R3xd4#
- 2.R5xd4#
- 1...Sc5
- 2.R3xd4#
- 2.R5xd4#
- 1...Sc7
- 2.R3xd4#
- 2.R5xd4#
- 1...Sg7
- 2.R3xd4#
- 2.R5xd4#
- 1...Sd8
- 2.R3xd4#
- 2.R5xd4#
- 1...Sf8
- 2.R3xd4#
- 2.R5xd4#
- 1...Kxd5!
- 1...Kxd3
- 1.Qh5?
- threat
- 2.Re3#
- 1...Sg5
- 2.R3xd4#
- 1...Sc2
- 2.Sd2#
- 2.Qg6#
- 2.Qe5#
- 2.Qf5#
- 1...Sf5
- 2.Sd2#
- 2.Qxf5#
- 1...Kxd3!
- threat
- 1.Sd2+?
- Keys
- 1.Qc7!
- 1...Kxd3
- 2.Bc2#
- 2.Qc2#
- 1...Kxd5
- 2.Qc6#
- 1...Sxf3
- 2.Qh7#
- 1...Sxc7
- 2.R3xd4#
- 1...Sc2
- 2.Sd2#
- 2.Qe5#
- 2.Qh7#
- 1...Se2
- 2.Sd2#
- 2.Qe5#
- 2.Qh7#
- 1...Sb3
- 2.Qe5#
- 2.Qh7#
- 1...Sb5
- 2.Sd2#
- 2.Qe5#
- 2.Qh7#
- 1...Sf5
- 2.Sd2#
- 2.Qe5#
- 1...Sc6
- 2.Sd2#
- 2.Qh7#
- 1...Sf4
- 2.R3xd4#
- 1...Sc5
- 2.R3xd4#
- 1...Sg5
- 2.R3xd4#
- 1...Sg7
- 2.R3xd4#
- 1...Sd8
- 2.R3xd4#
- 1...Sf8
- 2.R3xd4#
- 1...Kxd3
- 1.Qc7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- S(a);::QAR1(B)
- S(a);::S(D)
- S(c);N_GUARD::R1(C),XS(a)
- Tries
- Try
- S(D);CHECK
- Refutation
- K(b);P_SPINS(a),S_FLIGHT,XR(F)
- Try
- B(E);
- Threat
- DUALS(3)
- Refutation
- K(b);P_SPINS(a),S_FLIGHT,XR(F)
- Try
- B(E);
- Threat
- R1(C)
- Vars
- S(a);XB(E)::QAR1(B)
- Refutation
- K(b);P_SPINS(a),S_FLIGHT,XR(C)
- Try
- B(E);
- Threat
- DUALS(2)
- Vars
- K(b);P_SPINS(a),S_FLIGHT,XR(F)::QAR1(B)
- S(a);::S(D)
- Refutation
- S(a);XS(D)
- Try
- B(E);
- Threat
- R1(C)
- Vars
- S(a);XB(E)::S(D)
- Refutation
- K(b);P_SPINS(a),S_FLIGHT,XR(C)
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- S(a);N_GUARD,XS(D)::B(E)
- S(a);N_GUARD::B(E)
- Refutation
- K(b);P_SPINS(a),S_FLIGHT,XR(F)
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- S(a);N_GUARD,XS(D)::B(E)
- S(a);N_GUARD::B(E)
- Refutation
- K(b);P_SPINS(a),S_FLIGHT,XR(F)
- Try
- Q(B);
- Vars
- K(b);P_SPINS(a),S_FLIGHT,XR(C)::QAR(B)+S(D)
- S(c);N_GUARD::R1(C),XS(a)
- Refutation
- K(b);P_SPINS(a),S_FLIGHT,XR(F)
- Try
- Q(B);
- Threat
- R1(C)
- Refutation
- K(b);P_SPINS(a),S_FLIGHT,XR(C)
- Try
- Q(B);
- Vars
- K(b);P_SPINS(a),S_FLIGHT,XR(C)::QAR(B)+S(D)
- Refutation
- K(b);P_SPINS(a),S_FLIGHT,XR(F)
- Try
- Q(B);
- Threat
- R1(C)
- Vars
- S(c);N_GUARD::R1(C),XS(a)
- Refutation
- K(b);P_SPINS(a),S_FLIGHT,XR(C)
- Try
- Actual
- Q(B);
- Vars
- K(b);OGATEB,P_SPINS(a),S_FLIGHT,XR(F)::QAB1(B)
- S(a);N_GUARD,XS(D)::QAB(B)
- S(c);N_GUARD,XQ(B)::R1(C),XS(a)
- S(c);N_GUARD::R1(C),XS(a)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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