MESON Chess Problem Database
Problem Display
PID: 62749 (2B2r1B/3n4/1R1N1n2/3pkbR1/6p1/4P1p1/6Q1/K7 w - - 0 1)
Jespersen, Karl Lorenz Jesper
Tijdschrift vd NSB, 1896
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Rf7
- 2.Sxf7#
- 1...Rxc8
- 2.Sf7#
- 1...Rd8
- 2.Sf7#
- 1...Re8
- 2.Sf7#
- 1...Rg8
- 2.Sf7#
- 1...Rxh8
- 2.Sf7#
- 1...Sc5
- 2.Rxf5#
- 2.Qxg3#
- 1...Sxb6
- 2.Qxg3#
- 1...Sb8
- 2.Rxf5#
- 2.Qxg3#
- 1...d4
- 2.Sc4#
- 2.Qe4#
- 1...Rf7
- Tries
- 1.Ka2?
- 1...Rxc8
- 2.Sf7#
- 1...Rxh8
- 2.Sf7#
- 1...Sxb6
- 2.Qxg3#
- 1...Rf7
- 2.Sxf7#
- 1...Rd8
- 2.Sf7#
- 1...Re8
- 2.Sf7#
- 1...Rg8
- 2.Sf7#
- 1...Sc5
- 2.Rxf5#
- 2.Qxg3#
- 1...Sb8
- 2.Rxf5#
- 2.Qxg3#
- 1...d4
- 2.Sc4#
- 2.Qe4#
- 1...Ke6!
- 1...Rxc8
- 1.Kb2?
- 1...Rxc8
- 2.Sf7#
- 1...Rxh8
- 2.Sf7#
- 1...Sxb6
- 2.Qxg3#
- 1...Rf7
- 2.Sxf7#
- 1...Rd8
- 2.Sf7#
- 1...Re8
- 2.Sf7#
- 1...Rg8
- 2.Sf7#
- 1...Sc5
- 2.Rxf5#
- 2.Qxg3#
- 1...Sb8
- 2.Rxf5#
- 2.Qxg3#
- 1...d4
- 2.Sc4#
- 2.Qe4#
- 1...Ke6!
- 1...Rxc8
- 1.Sxf5?
- threat
- 2.Sxg3#
- 2.Sd4#
- 2.Sh4#
- 2.Sh6#
- 2.Se7#
- 2.Sg7#
- 1...Rg8
- 2.Sg7#
- 1...d4
- 2.Sxg3#
- 2.Sxd4#
- 2.Sh4#
- 2.Sh6#
- 2.Se7#
- 2.Sg7#
- 1...Sxb6!
- threat
- 1.Bxd7?
- threat
- 2.Rxf5#
- 2.Qxg3#
- 1...d4
- 2.Sc4#
- 2.Rxf5#
- 2.Qe4#
- 1...Ra8+!
- threat
- 1.Bg7?
- 1...Rxc8
- 2.Sf7#
- 1...Sxb6
- 2.Qxg3#
- 1...Rf7
- 2.Sxf7#
- 1...Rd8
- 2.Sf7#
- 1...Re8
- 2.Sf7#
- 1...Rg8
- 2.Sf7#
- 1...Rh8
- 2.Sf7#
- 1...Sc5
- 2.Rxf5#
- 2.Qxg3#
- 1...Sb8
- 2.Rxf5#
- 2.Qxg3#
- 1...d4
- 2.Sc4#
- 2.Qe4#
- 1...Ke6!
- 1...Rxc8
- 1.Rh5?
- 1...Rxc8
- 2.Sf7#
- 1...Rxh8
- 2.Sf7#
- 1...Sxb6
- 2.Qxg3#
- 1...Rf7
- 2.Sxf7#
- 1...Rd8
- 2.Sf7#
- 1...Re8
- 2.Sf7#
- 1...Rg8
- 2.Sf7#
- 1...Sc5
- 2.Rxf5#
- 2.Qxg3#
- 1...Sb8
- 2.Rxf5#
- 2.Qxg3#
- 1...d4
- 2.Sc4#
- 2.Qe4#
- 1...Ke6!
- 1...Rxc8
- 1.Ra6?
- 1...Rxc8
- 2.Sf7#
- 1...Rxh8
- 2.Sf7#
- 1...Rf7
- 2.Sxf7#
- 1...Rd8
- 2.Sf7#
- 1...Re8
- 2.Sf7#
- 1...Rg8
- 2.Sf7#
- 1...Sc5
- 2.Rxf5#
- 2.Qxg3#
- 1...Sb6
- 2.Qxg3#
- 1...Sb8
- 2.Rxf5#
- 2.Qxg3#
- 1...d4
- 2.Sc4#
- 2.Qe4#
- 1...Ke6!
- 1...Rxc8
- 1.Rc6?
- 1...Rxc8
- 2.Sf7#
- 1...Rxh8
- 2.Sf7#
- 1...Rf7
- 2.Sxf7#
- 1...Rd8
- 2.Sf7#
- 1...Re8
- 2.Sf7#
- 1...Rg8
- 2.Sf7#
- 1...Sc5
- 2.Rxf5#
- 2.Qxg3#
- 1...Sb6
- 2.Rxf5#
- 2.Qxg3#
- 1...Sb8
- 2.Rxf5#
- 2.Qxg3#
- 1...d4
- 2.Sc4#
- 2.Qe4#
- 1...Ke6!
- 1...Rxc8
- 1.Qf1?
- threat
- 2.Qxf5#
- 1...Sxb6
- 2.Qf4#
- 1...Ke6!
- threat
- 1.Ka2?
- Keys
- 1.Rg7!
- 1...Ke6
- 2.Sc4#
- 1...Rxc8
- 2.Sf7#
- 1...Rxh8
- 2.Sf7#
- 1...Sxb6
- 2.Qxg3#
- 1...Se4
- 2.Re7#
- 1...Sh5
- 2.Re7#
- 1...Sh7
- 2.Re7#
- 1...Se8
- 2.Re7#
- 1...Sg8
- 2.Re7#
- 1...Rf7
- 2.Sxf7#
- 1...Rd8
- 2.Sf7#
- 1...Re8
- 2.Sf7#
- 1...Rg8
- 2.Sf7#
- 1...Bb1
- 2.Re7#
- 1...Bc2
- 2.Re7#
- 1...Bd3
- 2.Re7#
- 1...Be4
- 2.Re7#
- 1...Be6
- 2.Qxg3#
- 1...Bg6
- 2.Re7#
- 1...Bh7
- 2.Re7#
- 1...Sc5
- 2.Qxg3#
- 1...Sb8
- 2.Qxg3#
- 1...d4
- 2.Sc4#
- 1...Ke6
- 1.Rg7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 16
- REMOVED MATES = 0
- Sets
- R(h);N_GUARD::S(F),XR(h)
- R(h);N_GUARD,XB(G)::S(F)
- R(h);N_GUARD::S(F)
- R(h);N_GUARD,N_SPINS(f),XB(H)::S(F)
- S(g);XR(E)::QAB(B),XP(a)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- R(h);N_GUARD,XB(G)::S(F)
- R(h);N_GUARD,N_SPINS(f),XB(H)::S(F)
- S(g);XR(E)::QAB(B),XP(a)
- R(h);N_GUARD::S(F),XR(h)
- R(h);N_GUARD::S(F)
- Refutation
- K(d);N_SPINB(e),N_SPINS(f),P-FLIGHT,P_SPINS(g)
- Try
- K(A);S_FLIGHT
- Vars
- R(h);N_GUARD,XB(G)::S(F)
- R(h);N_GUARD,N_SPINS(f),XB(H)::S(F)
- S(g);XR(E)::QAB(B),XP(a)
- R(h);N_GUARD::S(F),XR(h)
- R(h);N_GUARD::S(F)
- Refutation
- K(d);N_SPINB(e),N_SPINS(f),P-FLIGHT,P_SPINS(g)
- Try
- S(F);XB(e)
- Threat
- DUALS(6)
- Vars
- R(h);::R(D)+S(F)
- Refutation
- S(g);XR(E)
- Try
- B(G);XS(g)
- Threat
- DUALS(2)
- Refutation
- R(h);CHECK
- Try
- B(H);
- Vars
- R(h);N_GUARD,XB(G)::S(F)
- S(g);XR(E)::QAB(B),XP(a)
- R(h);N_GUARD::S(F),XR(h)
- R(h);N_GUARD::S(F)
- Refutation
- K(d);N_SPINB(e),N_SPINS(f),P-FLIGHT,P_SPINS(g)
- Try
- R(D);
- Vars
- R(h);N_GUARD,XB(G)::S(F)
- R(h);N_GUARD,N_SPINS(f),XB(H)::S(F)
- S(g);XR(E)::QAB(B),XP(a)
- R(h);N_GUARD::S(F),XR(h)
- R(h);N_GUARD::S(F)
- Refutation
- K(d);N_SPINB(e),N_SPINS(f),P-FLIGHT,P_SPINS(g)
- Try
- R(E);
- Vars
- R(h);N_GUARD,XB(G)::S(F)
- R(h);N_GUARD,N_SPINS(f),XB(H)::S(F)
- R(h);N_GUARD::S(F),XR(h)
- R(h);N_GUARD::S(F)
- S(g);::QAB(B),XP(a)
- Refutation
- K(d);N_SPINB(e),N_SPINS(f),P-FLIGHT,P_SPINS(g)
- Try
- R(E);
- Vars
- R(h);N_GUARD,XB(G)::S(F)
- R(h);N_GUARD,N_SPINS(f),XB(H)::S(F)
- R(h);N_GUARD::S(F),XR(h)
- R(h);N_GUARD::S(F)
- Refutation
- K(d);N_SPINB(e),N_SPINS(f),P-FLIGHT,P_SPINS(g)
- Try
- Q(B);
- Threat
- QAR1(B),XB(e)
- Vars
- S(g);XR(E)::QAB1(B)
- Refutation
- K(d);N_SPINB(e),N_SPINS(f),P-FLIGHT,P_SPINS(g)
- Try
- Actual
- R(D);N_PINB(e),N_PINS(f)
- Vars
- K(d);P-FLIGHT,P_SPINS(g)::R(E)+S(F)
- R(h);N_GUARD,XB(G)::S(F)
- R(h);N_GUARD,XB(H)::S(F)
- S(g);XR(E)::QAB(B),XP(a)
- S(f);::B(H)+R(D),DCHECK
- R(h);N_GUARD::S(F),XR(h)
- R(h);N_GUARD::S(F)
- B(e);N_GUARD::R(D)
- B(e);SBLOCK::QAB(B),XP(a)
- S(g);::QAB(B),XP(a)
- P(c);N_GUARD::S(F)
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).