MESON Chess Problem Database
Problem Display
PID: 232906 (2N3n1/2p4N/6pp/1pR5/1p2k3/1Pr1p3/K1P3P1/1BBR1Qn1 w - - 0 1)
Dikusarov, Andrey Nikolayovich
Kudesnik, 2010
#2
11 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxc2+
- 2.Bxc2#
- 1...Rxb3
- 2.cxb3#
- 1...Rc4
- 2.c3#
- 1...Se2
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sh3
- 2.Qf3#
- 1...Sf6
- 2.Sxf6#
- 1...Se7
- 2.Sf6#
- 1...e2
- 2.Qf4#
- 1...g5
- 2.Qf5#
- 1...h5
- 2.Sg5#
- 1...c6
- 2.Sd6#
- 1...Rxc2+
- Tries
- 1.Bb2?
- 1...Rxc2
- 2.Bxc2#
- 2.Rd4#
- 2.Re5#
- 1...Rxb3
- 2.Rd4#
- 2.Re5#
- 2.cxb3#
- 2.c3#
- 1...Rxc5
- 2.c4#
- 1...Sf3
- 2.Qxf3#
- 1...Rd3
- 2.Re5#
- 2.cxd3#
- 1...Rc4
- 2.Re5#
- 2.c3#
- 1...Se2
- 2.Qf3#
- 1...Sh3
- 2.Qf3#
- 1...Sf6
- 2.Sxf6#
- 1...Se7
- 2.Sf6#
- 1...g5
- 2.Qf5#
- 1...h5
- 2.Sg5#
- 1...c6
- 2.Sd6#
- 1...e2!
- 1...Rxc2
- 1.Rcd5?
- threat
- 2.R1d4#
- 1...Rxc2+
- 2.Bxc2#
- 1...Sf3
- 2.Qxf3#
- 1...Rc4
- 2.c3#
- 1...Se2
- 2.Qf3#
- 1...c5
- 2.Sd6#
- 1...Rd3!
- threat
- 1.Qf6?
- threat
- 2.Rd4#
- 2.Re5#
- 2.Qd4#
- 2.Qh4#
- 2.Qe5#
- 1...Rxc2+
- 2.Bxc2#
- 1...Rxc5
- 2.Rd4#
- 2.c3#
- 2.c4#
- 1...Rd3
- 2.Qh4#
- 2.Qe5#
- 2.cxd3#
- 1...Rc4
- 2.Re5#
- 2.Qh4#
- 2.Qe5#
- 2.c3#
- 1...Se2
- 2.Re5#
- 2.Qe5#
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 2.gxf3#
- 1...Sh3
- 2.Rd4#
- 2.Re5#
- 2.Qd4#
- 2.Qe5#
- 2.Qf3#
- 1...g5
- 2.Rd4#
- 2.Re5#
- 2.Qd4#
- 2.Qe5#
- 2.Qf5#
- 1...Sxf6!
- threat
- 1.g3?
- threat
- 2.Qf4#
- 1...Rxc2+
- 2.Bxc2#
- 1...Se2
- 2.Qg2#
- 2.Qh1#
- 1...Sh3
- 2.Qg2#
- 2.Qh1#
- 1...g5
- 2.Qf5#
- 1...Sf3!
- threat
- 1.Bb2?
- Keys
- 1.Rdd5!
- 1...Rxc2+
- 2.Bxc2#
- 1...Rxb3
- 2.cxb3#
- 1...Rxc5
- 2.c4#
- 1...Sf3
- 2.Qxf3#
- 1...Rd3
- 2.cxd3#
- 1...Rc4
- 2.c3#
- 1...Se2
- 2.Qf3#
- 1...Sh3
- 2.Qf3#
- 1...Sf6
- 2.Sxf6#
- 1...Se7
- 2.Sf6#
- 1...e2
- 2.Qf4#
- 1...g5
- 2.Qf5#
- 1...h5
- 2.Sg5#
- 1...c6
- 2.Sd6#
- 1...Rxc2+
- 1.Rdd5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(b);CHECK,OGATE,P_SPINR(b),XP(F)::B(A),XR(b)
- R(b);OGATE,XP(H)::B(A)+P(F),XR(b)
- R(b);OGATE::B(A)+P(F)
- S(a);N_GUARD::QAB1(D)
- S(a);N_GUARD::QAB1(D),XS(a)
- S(j);N_GUARD::S(J),XS(j)
- S(j);N_GUARD::S(J)
- P(c);::QAR1(D)
- P(g);N_GUARD::QAB1(D)
- P(h);N_GUARD::S(J)
- P(i);N_GUARD::S(K)
- Tries
- Try
- B(B);
- Vars
- R(b);OGATE,XR(I)::B(A)+P(F)
- S(a);N_GUARD::QAB1(D),XS(a)
- S(a);N_GUARD::QAB1(D)
- S(j);N_GUARD::S(J),XS(j)
- S(j);N_GUARD::S(J)
- P(g);N_GUARD::QAB1(D)
- P(h);N_GUARD::S(J)
- P(i);N_GUARD::S(K)
- Refutation
- P(c);
- Try
- R(I);
- Threat
- R1(C)
- Vars
- R(b);CHECK,OGATE,P_SPINR(b),XP(F)::B(A),XR(b)
- S(a);N_GUARD::QAB1(D),XS(a)
- R(b);OGATE::B(A)+P(F)
- S(a);N_GUARD::QAB1(D)
- P(i);N_GUARD::S(K)
- Refutation
- R(b);
- Try
- Q(D);
- Threat
- DUALS(5)
- Vars
- R(b);CHECK,OGATE,P_SPINR(b),XP(F)::B(A),XR(b)
- Refutation
- S(j);XQ(D)
- Try
- P(G);
- Threat
- QAR1(D)
- Vars
- R(b);CHECK,OGATE,P_SPINR(b),XP(F)::B(A),XR(b)
- P(g);N_GUARD::QAB1(D)
- Refutation
- S(a);
- Try
- Actual
- R(C);
- Vars
- R(b);CHECK,OGATE,P_SPINR(b),XP(F)::B(A),XR(b)
- R(b);OGATE,XP(H)::B(A)+P(F),XR(b)
- R(b);OGATE,XR(I)::B(A)+P(F)
- S(a);N_GUARD::QAB1(D),XS(a)
- R(b);OGATE::P(F),XR(b)
- R(b);OGATE::B(A)+P(F)
- S(a);N_GUARD::QAB1(D)
- S(j);N_GUARD::S(J),XS(j)
- S(j);N_GUARD::S(J)
- P(c);::QAR1(D)
- P(g);N_GUARD::QAB1(D)
- P(h);N_GUARD::S(J)
- P(i);N_GUARD::S(K)
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).