MESON Chess Problem Database
Problem Display
PID: 140132 (3B1nrn/3p2qp/2p1k2P/2Q2Rp1/6N1/2p4N/2B5/2K5 w - - 0 1)
Wolfs, WJ
Probleemblad, 1969
#2
8 + 10
SOLUTION
- SOUND
- Sets
- 1...Qd4
- 2.Qe7#
- 1...Qe5
- 2.Qxe5#
- 1...Qf6
- 2.Rxf6#
- 1...Qxh6
- 2.Qe7#
- 2.Qe5#
- 1...Qg6
- 2.Qe7#
- 2.Qe5#
- 1...Qe7
- 2.Qxe7#
- 2.Qe5#
- 1...Qf7
- 2.Re5#
- 2.Qe5#
- 1...Sfg6
- 2.Sxg5#
- 1...Shg6
- 2.Sxg5#
- 1...Sf7
- 2.Qe7#
- 1...d5
- 2.Qxc6#
- 1...Qd4
- Tries
- 1.Kb1?
- 1...Qxh6
- 2.Qe7#
- 2.Qe5#
- 1...Qf6
- 2.Rxf6#
- 1...d5
- 2.Qxc6#
- 1...Qd4
- 2.Qe7#
- 1...Qe5
- 2.Qxe5#
- 1...Qg6
- 2.Qe7#
- 2.Qe5#
- 1...Qe7
- 2.Qxe7#
- 2.Qe5#
- 1...Qf7
- 2.Re5#
- 2.Qe5#
- 1...Sfg6
- 2.Sxg5#
- 1...Shg6
- 2.Sxg5#
- 1...Sf7
- 2.Qe7#
- 1...d6!
- 1...Qxh6
- 1.Sgf2?
- 1...Qxh6
- 2.Qe7#
- 2.Qe5#
- 1...Qf6
- 2.Rxf6#
- 1...d5
- 2.Qxc6#
- 1...Sfg6
- 2.Sxg5#
- 1...Qd4
- 2.Qe7#
- 1...Qe5
- 2.Qxe5#
- 1...Qg6
- 2.Qe7#
- 2.Qe5#
- 1...Qe7
- 2.Qxe7#
- 2.Qe5#
- 1...Qf7
- 2.Re5#
- 2.Qe5#
- 1...Shg6
- 2.Sxg5#
- 1...Sf7
- 2.Qe7#
- 1...g4
- 2.Sf4#
- 1...d6!
- 1...Qxh6
- 1.Sh2?
- 1...Qxh6
- 2.Qe7#
- 2.Qe5#
- 1...Qf6
- 2.Rxf6#
- 1...d5
- 2.Qxc6#
- 1...Sfg6
- 2.Sxg5#
- 1...Qd4
- 2.Qe7#
- 1...Qe5
- 2.Qxe5#
- 1...Qg6
- 2.Qe7#
- 2.Qe5#
- 1...Qe7
- 2.Qxe7#
- 2.Qe5#
- 1...Qf7
- 2.Re5#
- 2.Qe5#
- 1...Shg6
- 2.Sxg5#
- 1...Sf7
- 2.Qe7#
- 1...g4
- 2.Sf4#
- 1...d6!
- 1...Qxh6
- 1.Se3?
- 1...Qxh6
- 2.Qe7#
- 2.Qe5#
- 1...Qf6
- 2.Rxf6#
- 1...d5
- 2.Qxc6#
- 1...Sfg6
- 2.Sxg5#
- 1...Qd4
- 2.Qe7#
- 1...Qe5
- 2.Qe7#
- 2.Qxe5#
- 1...Qg6
- 2.Qe7#
- 2.Qe5#
- 1...Qe7
- 2.Qxe7#
- 2.Qe5#
- 1...Qf7
- 2.Re5#
- 2.Qe5#
- 1...Shg6
- 2.Sxg5#
- 1...Sf7
- 2.Qe7#
- 1...g4
- 2.Sf4#
- 1...d6!
- 1...Qxh6
- 1.Rf1?
- 1...Qxh6
- 2.Qe5#
- 1...Qf6
- 2.Rxf6#
- 1...d5
- 2.Qxc6#
- 1...d6
- 2.Qf5#
- 1...Qe5
- 2.Qxe5#
- 1...Qg6
- 2.Qe5#
- 1...Qe7
- 2.Qe5#
- 1...Qf7
- 2.Re1#
- 2.Qe5#
- 1...Sfg6
- 2.Sxg5#
- 1...Shg6
- 2.Sxg5#
- 1...Sf7
- 2.Bf5#
- 1...Qd4!
- 1...Qxh6
- 1.Rf2?
- 1...Qxh6
- 2.Qe5#
- 1...Qf6
- 2.Rxf6#
- 1...d5
- 2.Qxc6#
- 1...d6
- 2.Qf5#
- 1...Qe5
- 2.Qxe5#
- 1...Qg6
- 2.Qe5#
- 1...Qe7
- 2.Qe5#
- 1...Qf7
- 2.Re2#
- 2.Qe5#
- 1...Sfg6
- 2.Sxg5#
- 1...Shg6
- 2.Sxg5#
- 1...Sf7
- 2.Bf5#
- 1...Qd4!
- 1...Qxh6
- 1.Rf3?
- 1...Qxh6
- 2.Qe5#
- 1...Qf6
- 2.Rxf6#
- 1...d5
- 2.Qxc6#
- 1...d6
- 2.Qf5#
- 1...Qe5
- 2.Qxe5#
- 1...Qg6
- 2.Qe5#
- 1...Qe7
- 2.Qe5#
- 1...Qf7
- 2.Re3#
- 2.Qe5#
- 1...Sfg6
- 2.Sxg5#
- 1...Shg6
- 2.Sxg5#
- 1...Sf7
- 2.Bf5#
- 1...Qd4!
- 1...Qxh6
- 1.Re5+?
- 1...Kf7
- 2.Re7#
- 2.Qe7#
- 1...Qxe5!
- 1...Kf7
- 1.Qe3+?
- 1...Qe5
- 2.Qxe5#
- 1...Kd6!
- 1...Qe5
- 1.Qc4+?
- 1...d5
- 2.Qxc6#
- 1...Kd6!
- 1...d5
- 1.hxg7?
- threat
- 2.Sxg5#
- 2.Rf6#
- 2.Qe7#
- 2.Qe5#
- 1...Rxg7
- 2.Rf6#
- 2.Qe5#
- 1...d5
- 2.Qe7#
- 2.Qxc6#
- 1...Sfg6
- 2.Sxg5#
- 2.Rf6#
- 1...Shg6
- 2.Sxg5#
- 2.Rf6#
- 1...Sf7
- 2.Rf6#
- 2.Qe7#
- 1...h6
- 2.Rf6#
- 2.Qe7#
- 2.Qe5#
- 1...d6!
- threat
- 1.Kb1?
- Keys
- 1.Rf7!
- 1...Kxf7
- 2.Qe7#
- 1...Qxh6
- 2.Re7#
- 1...Qxf7
- 2.Qe5#
- 1...Sxf7
- 2.Bf5#
- 1...Qd4
- 2.Re7#
- 1...Qe5
- 2.Re7#
- 1...Qf6
- 2.Rxf6#
- 1...Qg6
- 2.Re7#
- 1...Sfg6
- 2.Sxg5#
- 1...Shg6
- 2.Sxg5#
- 1...d5
- 2.Qe7#
- 1...d6
- 2.Qf5#
- 1...Kxf7
- 1.Rf7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 4
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- Q(f);N_GUARD::QAR1(E)
- Q(f);N_GUARD::QAR1(E),XQ(f)
- Q(f);N_GUARD::R1(F),XQ(f)
- S(h);S_CUTQ(f)::S(C),XP(b)
- S(j);S_CUTQ(f)::S(C),XP(b)
- S(j);S_CUTQ(f)::QAR1(E)
- P(e);N_GUARD::QAR2(E),XP(c)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- Q(f);N_GUARD::R1(F),XQ(f)
- P(e);N_GUARD::QAR2(E),XP(c)
- Q(f);N_GUARD::QAR1(E)
- Q(f);N_GUARD::QAR1(E),XQ(f)
- S(h);S_CUTQ(f)::S(C),XP(b)
- S(j);S_CUTQ(f)::S(C),XP(b)
- S(j);S_CUTQ(f)::QAR1(E)
- Refutation
- P(e);
- Try
- S(D);
- Vars
- Q(f);N_GUARD::R1(F),XQ(f)
- P(e);N_GUARD::QAR2(E),XP(c)
- S(h);S_CUTQ(f)::S(C),XP(b)
- Q(f);N_GUARD::QAR1(E)
- Q(f);N_GUARD::QAR1(E),XQ(f)
- S(j);S_CUTQ(f)::S(C),XP(b)
- S(j);S_CUTQ(f)::QAR1(E)
- P(b);N_GUARD::S(C)
- Refutation
- P(e);
- Try
- S(D);
- Vars
- Q(f);N_GUARD::R1(F),XQ(f)
- P(e);N_GUARD::QAR2(E),XP(c)
- S(h);S_CUTQ(f)::S(C),XP(b)
- Q(f);N_GUARD::QAR1(E)
- Q(f);N_GUARD::QAR1(E),XQ(f)
- S(j);S_CUTQ(f)::S(C),XP(b)
- S(j);S_CUTQ(f)::QAR1(E)
- P(b);N_GUARD::S(C)
- Refutation
- P(e);
- Try
- S(D);
- Vars
- Q(f);N_GUARD::R1(F),XQ(f)
- P(e);N_GUARD::QAR2(E),XP(c)
- S(h);S_CUTQ(f)::S(C),XP(b)
- Q(f);N_GUARD::QAR1(E)
- S(j);S_CUTQ(f)::S(C),XP(b)
- S(j);S_CUTQ(f)::QAR1(E)
- P(b);N_GUARD::S(C)
- Refutation
- P(e);
- Try
- R(F);
- Vars
- Q(f);N_GUARD,XP(G)::QAR1(E)
- Q(f);N_GUARD::R1(F),XQ(f)
- P(e);N_GUARD::QAR2(E),XP(c)
- P(e);SBLOCK::QAB1(E)
- Q(f);N_GUARD::QAR1(E),XQ(f)
- Q(f);N_GUARD::QAR1(E)
- S(h);S_CUTQ(f)::S(C),XP(b)
- S(j);S_CUTQ(f)::S(C),XP(b)
- S(j);SBLOCK::B(B)
- Refutation
- Q(f);
- Try
- R(F);
- Vars
- Q(f);N_GUARD,XP(G)::QAR1(E)
- Q(f);N_GUARD::R1(F),XQ(f)
- P(e);N_GUARD::QAR2(E),XP(c)
- P(e);SBLOCK::QAB1(E)
- Q(f);N_GUARD::QAR1(E),XQ(f)
- Q(f);N_GUARD::QAR1(E)
- S(h);S_CUTQ(f)::S(C),XP(b)
- S(j);S_CUTQ(f)::S(C),XP(b)
- S(j);SBLOCK::B(B)
- Refutation
- Q(f);
- Try
- R(F);
- Vars
- Q(f);N_GUARD,XP(G)::QAR1(E)
- Q(f);N_GUARD::R1(F),XQ(f)
- P(e);N_GUARD::QAR2(E),XP(c)
- P(e);SBLOCK::QAB1(E)
- Q(f);N_GUARD::QAR1(E),XQ(f)
- Q(f);N_GUARD::QAR1(E)
- S(h);S_CUTQ(f)::S(C),XP(b)
- S(j);S_CUTQ(f)::S(C),XP(b)
- S(j);SBLOCK::B(B)
- Refutation
- Q(f);
- Try
- R(F);CHECK
- Refutation
- Q(f);XR(F)
- Try
- Q(E);CHECK
- Vars
- Q(f);N_GUARD,P_SPINQ(f)::QAR1(E),XQ(f)
- Refutation
- K(d);P-FLIGHT
- Try
- Q(E);CHECK
- Vars
- P(e);N_GUARD,P_SPINP(e)::QAR2(E),XP(c)
- Refutation
- K(d);P-FLIGHT
- Try
- P(G);XQ(f)
- Threat
- DUALS(4)
- Refutation
- P(e);
- Try
- Actual
- R(F);
- Vars
- K(d);S_FLIGHT,XR(F)::QAR1(E)
- Q(f);N_GUARD,XP(G)::R1(F)
- Q(f);N_GUARD,SBLOCK,XR(F)::QAR1(E)
- S(j);SBLOCK,XR(F)::B(B)
- Q(f);N_GUARD::R1(F)
- Q(f);N_GUARD::R1(F),XQ(f)
- S(h);S_CUTQ(f)::S(C),XP(b)
- S(j);S_CUTQ(f)::S(C),XP(b)
- P(e);SBLOCK::QAR1(E)
- P(e);SBLOCK::QAB1(E)
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).