MESON Chess Problem Database
Problem Display
PID: 249714 (1nQ1r3/p2q4/2P5/1N5B/KNR2P2/3Pk2r/4pRp1/4Bb2 w - - 0 1)
Handloser, Ralf Chris
Schweizerische Schachzeitung, 2002
#2
11 + 9
SOLUTION
- SOUND
- Sets
- 1...Qxd3
- 2.Qxh3#
- 1...Qd4
- 2.Qxh3#
- 1...Qd6
- 2.Qxh3#
- 1...Qb7
- 2.Qxh3#
- 1...Qc7
- 2.Qxh3#
- 1...Qe7
- 2.Qxh3#
- 1...Qf7
- 2.Qxh3#
- 1...Qh7
- 2.Qxh3#
- 1...Qd8
- 2.Qxh3#
- 1...Rh1
- 2.Rf3#
- 1...Rh2
- 2.Rf3#
- 1...Rf3
- 2.Rxf3#
- 1...Rh4
- 2.Rf3#
- 1...Re4
- 2.Rxe4#
- 1...Rxc8
- 2.Re4#
- 1...Rd8
- 2.Re4#
- 1...Rf8
- 2.Re4#
- 1...Rg8
- 2.Re4#
- 1...Rh8
- 2.Re4#
- 1...Qxd3
- Tries
- 1.Sa3?
- threat
- 2.Sac2#
- 1...Qxd3
- 2.Qxh3#
- 1...Qxc6+!
- threat
- 1.Sd4?
- threat
- 2.Sdc2#
- 1...Qxd4
- 2.Qxh3#
- 1...Qxc6+!
- threat
- 1.Bxe2?
- threat
- 2.Sc2#
- 1...Qxd3
- 2.Qxh3#
- 1...Bxe2!
- threat
- 1.Bg6?
- threat
- 2.Sc2#
- 1...Qxd3
- 2.Qxh3#
- 1...Re4
- 2.Rxe4#
- 1...Qf5!
- threat
- 1.Rd4?
- threat
- 2.Sc2#
- 1...Qxd4
- 2.Qxh3#
- 1...Qxc6!
- threat
- 1.Qxd7?
- threat
- 2.Sc2#
- 2.Qxh3#
- 2.Qxe8#
- 2.Qd4#
- 2.Qxa7#
- 1...Rxh5
- 2.Sc2#
- 2.Qd4#
- 1...Sxc6
- 2.Sc2#
- 2.Qxh3#
- 1...g1Q
- 2.Sc2#
- 2.Qxe8#
- 2.Qd4#
- 2.Qxa7#
- 1...g1S
- 2.Sc2#
- 2.Qxe8#
- 2.Qd4#
- 2.Qxa7#
- 1...g1B
- 2.Sc2#
- 2.Qxe8#
- 2.Qd4#
- 2.Qxa7#
- 1...g1R
- 2.Sc2#
- 2.Qxe8#
- 2.Qd4#
- 2.Qxa7#
- 1...Rh1
- 2.Sc2#
- 2.Rf3#
- 2.Qxe8#
- 2.Qd4#
- 2.Qxa7#
- 1...Rh2
- 2.Sc2#
- 2.Rf3#
- 2.Qxe8#
- 2.Qd4#
- 2.Qxa7#
- 1...Rf3
- 2.Sc2#
- 2.Rxf3#
- 2.Qxe8#
- 2.Qd4#
- 2.Qxa7#
- 1...Rg3
- 2.Sc2#
- 2.Qxe8#
- 2.Qd4#
- 2.Qxa7#
- 1...Rh4
- 2.Sc2#
- 2.Rf3#
- 2.Qxe8#
- 2.Qd4#
- 2.Qxa7#
- 1...Re4
- 2.Sc2#
- 2.Rxe4#
- 2.Qxh3#
- 1...Re5
- 2.Sc2#
- 2.Qxh3#
- 2.Qd4#
- 1...Re6
- 2.Sc2#
- 2.Qxe6#
- 2.Qd4#
- 2.Qxa7#
- 1...Re7
- 2.Sc2#
- 2.Qxh3#
- 2.Qd4#
- 2.Qxe7#
- 1...Rc8
- 2.Sc2#
- 2.Re4#
- 2.Qxh3#
- 2.Qe6#
- 2.Qd4#
- 2.Qxa7#
- 2.Qe7#
- 1...Rd8
- 2.Sc2#
- 2.Re4#
- 2.Qxh3#
- 2.Qe6#
- 2.Qe7#
- 1...Rf8
- 2.Sc2#
- 2.Re4#
- 2.Qxh3#
- 2.Qe6#
- 2.Qd4#
- 2.Qxa7#
- 2.Qe7#
- 1...Rg8
- 2.Sc2#
- 2.Re4#
- 2.Qe6#
- 2.Qd4#
- 2.Qxa7#
- 2.Qe7#
- 1...Rh8
- 2.Sc2#
- 2.Re4#
- 2.Qxh3#
- 2.Qe6#
- 2.Qd4#
- 2.Qxa7#
- 2.Qe7#
- 1...Sa6
- 2.Sc2#
- 2.Qxh3#
- 2.Qxe8#
- 2.Qd4#
- 1...a5
- 2.Sc2#
- 2.Qxh3#
- 2.Qxe8#
- 2.Qd4#
- 2.Qa7#
- 1...a6
- 2.Sc2#
- 2.Qxh3#
- 2.Qxe8#
- 2.Qd4#
- 2.Qa7#
- 1...Sxd7!
- threat
- 1.Qxe8+?
- 1...Qe6
- 2.Qxe6#
- 1...Qe7
- 2.Qxe7#
- 1...Qxe8!
- 1...Qe6
- 1.Sa3?
- Keys
- 1.Rc3!
- threat
- 2.Sc2#
- 1...Qxd3
- 2.Qxe8#
- 1...Rf3
- 2.Rxf3#
- 1...Qd4
- 2.Qxh3#
- 1...Re4
- 2.d4#
- threat
- 1.Rc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 15
- Sets
- Q(g);OGATE,XP(C)::QAR(K),XR(e)
- Q(g);OGATE::QAR(K),XR(e)
- R(e);N_GUARD::R1(B)
- R(e);N_GUARD::R1(B),XR(e)
- R(i);N_GUARD::R1(F),XR(i)
- R(i);N_GUARD,XQ(K)::R1(F)
- R(i);N_GUARD::R1(F)
- Tries
- Try
- S(H);P_SPINP(J)
- Threat
- S(H)
- Vars
- Q(g);N_PINP(J),OGATE,XP(C)::QAR(K),XR(e)
- Refutation
- Q(g);CHECK,XP(J)
- Try
- S(H);P_SPINP(J)
- Threat
- S(H)
- Vars
- Q(g);N_PINP(J),OGATE,XS(H)::QAR(K),XR(e)
- Refutation
- Q(g);CHECK,XP(J)
- Try
- B(I);XP(b)
- Threat
- S(E)
- Vars
- Q(g);OGATE,XP(C)::QAR(K),XR(e)
- Refutation
- B(a);XB(I)
- Try
- B(I);
- Threat
- S(E)
- Vars
- Q(g);OGATE,XP(C)::QAR(K),XR(e)
- R(i);N_GUARD::R1(F),XR(i)
- Refutation
- Q(g);
- Try
- R(F);
- Threat
- S(E)
- Vars
- Q(g);OGATE,P_PINS(E),XR(F)::QAR(K),XR(e)
- Refutation
- Q(g);P_PINS(H),XP(J)
- Try
- Q(K);XQ(g)
- Threat
- DUALS(5)
- Refutation
- S(h);XQ(K)
- Try
- Q(K);CHECK,XR(i)
- Vars
- Q(g);N_GUARD,P_SPINQ(g)::QAR(K),XQ(g)
- Refutation
- Q(g);XQ(K)
- Try
- Actual
- R(F);
- Threat
- S(E)
- Vars
- Q(g);N_GUARD,P_SPINQ(g),XP(C)::QAR(K),XR(i)
- R(e);N_GUARD::R1(B),XR(e)
- Q(g);OGATE,P_PINS(E)::QAR(K),XR(e)
- R(i);P_PINS(E),SBLOCK::R(F)+P(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).