MESON Chess Problem Database
Problem Display
PID: 117121 (Q7/3K4/3P2p1/3Nk1B1/8/2Pr4/3P2P1/1B6 w - - 0 1)
Kubbel, Leonid Ivanovich (AKA Kubbel, Karl Artur Leonid)
Teknika i juzi, 1928
#2
9 + 3
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxd2
- 2.Bf4#
- 2.Bf6#
- 1...Rxc3
- 2.Bf6#
- 1...Re3
- 2.Bf4#
- 2.Bf6#
- 2.d4#
- 1...Rf3
- 2.d4#
- 1...Rg3
- 2.Bf4#
- 2.Bf6#
- 2.d4#
- 1...Rh3
- 2.Bf4#
- 2.Bf6#
- 2.d4#
- 1...Rd4
- 2.Bf6#
- 1...Rxd5
- 2.Qe8#
- 2.Qh8#
- 1...Rxd2
- Tries
- 1.Se3?
- threat
- 2.Qe8#
- 1...Rxc3
- 2.Qe4#
- 2.Qd5#
- 2.Qh8#
- 1...Rxe3
- 2.Qa5#
- 2.d4#
- 1...Rxd6+!
- threat
- 1.Sf6?
- threat
- 2.Qe4#
- 1...Kf5
- 2.Qd5#
- 2.Qa5#
- 1...Re3
- 2.Sg4#
- 2.Qd5#
- 2.Qa5#
- 2.Qe8#
- 2.d4#
- 1...Rd4
- 2.Qe8#
- 1...Rd5
- 2.Sg4#
- 2.Qxd5#
- 2.Qe8#
- 1...Rxd6+!
- threat
- 1.Se7?
- 1...Rxd2
- 2.Sxg6#
- 2.Qe4#
- 2.Qh8#
- 1...Rxc3
- 2.Qe4#
- 2.Qd5#
- 2.Qh8#
- 1...Re3
- 2.Sxg6#
- 2.Qd5#
- 2.Qa5#
- 2.Qh8#
- 2.d4#
- 1...Rf3
- 2.Sxg6#
- 2.Qe4#
- 2.Qd5#
- 2.Qa5#
- 2.d4#
- 1...Rg3
- 2.Sxg6#
- 2.Qe4#
- 2.Qd5#
- 2.Qa5#
- 2.Qh8#
- 2.d4#
- 1...Rh3
- 2.Sxg6#
- 2.Qe4#
- 2.Qd5#
- 2.Qa5#
- 2.d4#
- 1...Rd4
- 2.Sxg6#
- 2.Qh8#
- 1...Rd5
- 2.Sc6#
- 2.Sxg6#
- 2.Qxd5#
- 2.Qh8#
- 1...Rxd6+!
- 1...Rxd2
- 1.Qa4?
- 1...Kf5
- 2.Qf4#
- 1...Rxd2
- 2.Qe4#
- 1...Rxc3
- 2.Qe4#
- 1...Rxd5
- 2.Qe4#
- 2.Qf4#
- 1...Re3
- 2.Qd4#
- 1...Rf3
- 2.Qd4#
- 2.Qe4#
- 1...Rg3
- 2.Qd4#
- 2.Qe4#
- 1...Rh3
- 2.Qd4#
- 2.Qe4#
- 1...Rd4
- 2.Qxd4#
- 1...Kxd5!
- 1...Kf5
- 1.Qg8?
- threat
- 2.Qe6#
- 1...Ke4
- 2.Qe6#
- 1...Rxc3
- 2.Bf6#
- 1...Kf5!
- threat
- 1.g4?
- 1...Rxd2
- 2.Bf4#
- 2.Bf6#
- 1...Rxc3
- 2.Bf6#
- 1...Rxd5
- 2.Qe8#
- 2.Qh8#
- 1...Re3
- 2.Bf4#
- 2.Bf6#
- 2.d4#
- 1...Rf3
- 2.d4#
- 1...Rg3
- 2.Bf4#
- 2.Bf6#
- 2.d4#
- 1...Rh3
- 2.Bf4#
- 2.Bf6#
- 2.d4#
- 1...Rd4
- 2.Bf6#
- 1...Ke4!
- 1...Rxd2
- 1.Se3?
- Keys
- 1.Qa5!
- 1...Ke4
- 2.Sf6#
- 1...Kf5
- 2.Sf6#
- 1...Rxd2
- 2.Bf4#
- 2.Bf6#
- 1...Rxc3
- 2.Bf6#
- 1...Rxd5
- 2.d4#
- 1...Re3
- 2.Sxe3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 2.Bf4#
- 2.Bf6#
- 2.d4#
- 1...Rf3
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 2.d4#
- 1...Rg3
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 2.Bf4#
- 2.Bf6#
- 2.d4#
- 1...Rh3
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 2.Se7#
- 2.Bf4#
- 2.Bf6#
- 2.d4#
- 1...Rd4
- 2.Bf6#
- 1...Ke4
- 1.Qa5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- R(a);XP(D)::B(F)
- R(a);OGATE::P(B)
- R(a);::B(F)
- Tries
- Try
- S(E);P_SPINP(G)
- Threat
- QAR(I)
- Refutation
- R(a);CHECK,XP(G)
- Try
- S(E);P_SPINP(G)
- Threat
- QAR1(I)
- Vars
- R(a);::QAR(I)
- Refutation
- R(a);CHECK,XP(G)
- Try
- S(E);P_SPINP(G)
- Refutation
- R(a);CHECK,XP(G)
- Try
- Q(I);
- Vars
- K(b);P-FLIGHT,P_SPINR(a)::QAR1(I)
- R(a);XP(B)::QAR1(I)
- R(a);XP(D)::QAR1(I)
- R(a);N_GUARD::QAB1(I)
- R(a);N_GUARD::QAB1(I),XR(a)
- Refutation
- K(b);P-FLIGHT,XS(E)
- Try
- Q(I);
- Threat
- QAR1(I)
- Vars
- K(b);P-FLIGHT,P_SPINR(a)::QAR2(I)
- R(a);XP(D)::B(F)
- Refutation
- K(b);P-FLIGHT,P_SPINR(a)
- Try
- P(C);
- Vars
- R(a);XP(D)::B(F)
- R(a);OGATE::P(B)
- R(a);::B(F)
- Refutation
- K(b);P-FLIGHT,P_SPINR(a)
- Try
- Actual
- Q(I);
- Vars
- K(b);P-FLIGHT,P_SPINR(a)::S(E)
- K(b);P-FLIGHT,P_SPINR(a)::QAR(I)+S(E)
- R(a);XP(D)::B(F)
- R(a);OGATE,P_PINP(G),P_SPINR(a),XS(E)::P(B)
- R(a);::B(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).