MESON Chess Problem Database
Problem Display
PID: 271083 (3R4/bK1p4/1NQ1pnB1/4N3/r2k1B1q/4p3/2R5/3r3b w - - 0 1)
Yanovski, U
Probleemblad, 1951
#2
8 + 10
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Rc4#
- 1...Ra2
- 2.Rc4#
- 1...Ra3
- 2.Rc4#
- 1...Rc4
- 2.Rxc4#
- 1...Ra5
- 2.Rc4#
- 1...Ra6
- 2.Rc4#
- 1...Bf3
- 2.Sxf3#
- 1...Bxc6+
- 2.Sxc6#
- 1...Se4
- 2.Qxa4#
- 1...Sd5
- 2.Qc5#
- 1...d5
- 2.Qxa4#
- 2.Qc3#
- 2.Qc5#
- 1...Ra1
- Tries
- 1.Kc8?
- threat
- 2.Qxa4#
- 2.Qc3#
- 2.Qc5#
- 1...Qxf4
- 2.Qc3#
- 2.Qc5#
- 1...Bxc6
- 2.Sxc6#
- 1...Qe1
- 2.Qc5#
- 1...Rda1
- 2.Qc3#
- 2.Qc5#
- 1...Rb1
- 2.Qc3#
- 2.Qc5#
- 1...Rd3
- 2.Qxa4#
- 2.Qc5#
- 1...Raa1
- 2.Rc4#
- 2.Qc3#
- 2.Qc4#
- 2.Qc5#
- 1...Ra2
- 2.Rc4#
- 2.Qc3#
- 2.Qc4#
- 2.Qc5#
- 1...Ra3
- 2.Rc4#
- 2.Qc4#
- 2.Qc5#
- 1...Rb4
- 2.Qc3#
- 2.Qc5#
- 1...Rc4
- 2.Rxc4#
- 2.Qxc4#
- 1...Ra5
- 2.Rc4#
- 2.Qc3#
- 2.Qc4#
- 1...Ra6
- 2.Rc4#
- 2.Qc3#
- 2.Qc4#
- 2.Qc5#
- 1...Bd5
- 2.Qc3#
- 2.Qc5#
- 1...Se4
- 2.Qxa4#
- 1...Sd5
- 2.Qc5#
- 1...Bxb6!
- threat
- 1.Rxd7+?
- 1...Bd5
- 2.Sf3#
- 1...Sd5
- 2.Qxa4#
- 2.Qc3#
- 2.Qc5#
- 1...Sxd7!
- 1...Bd5
- 1.Qxh1?
- threat
- 2.Sf3#
- 2.Sc6#
- 2.Qxd1#
- 1...Qxf4
- 2.Sc6#
- 1...Rxh1
- 2.Sf3#
- 2.Sc6#
- 1...Bxb6
- 2.Sc6#
- 2.Qxd1#
- 1...Rc4
- 2.Rxc4#
- 1...Qe1
- 2.Sf3#
- 2.Sc6#
- 1...Qf2
- 2.Sc6#
- 1...Qg3
- 2.Sc6#
- 2.Qxd1#
- 1...Qh2
- 2.Sf3#
- 2.Sc6#
- 1...Qh3
- 2.Sc6#
- 2.Qxd1#
- 1...Qg4
- 2.Sc6#
- 1...Qh5
- 2.Sc6#
- 1...Rda1
- 2.Sf3#
- 2.Sc6#
- 1...Rb1
- 2.Sf3#
- 2.Sc6#
- 1...Rc1
- 2.Sf3#
- 2.Sc6#
- 1...Re1
- 2.Sf3#
- 2.Sc6#
- 1...Rf1
- 2.Sc6#
- 1...Rg1
- 2.Sf3#
- 2.Sc6#
- 1...Rd2
- 2.Sf3#
- 2.Sc6#
- 1...Rd3
- 2.Sf3#
- 2.Sc6#
- 1...Raa1
- 2.Sf3#
- 2.Sc6#
- 2.Rc4#
- 1...Ra3
- 2.Sf3#
- 2.Sc6#
- 2.Rc4#
- 1...Se4
- 2.Qxe4#
- 1...Sd5
- 2.Sf3#
- 2.Qe4#
- 2.Qxd1#
- 1...e2
- 2.Sf3#
- 2.Sc6#
- 1...Qxh1+!
- threat
- 1.Kc8?
- Keys
- 1.Qf3!
- threat
- 2.Sc6#
- 1...Bxf3+
- 2.Sxf3#
- 1...Rc4
- 2.Rxc4#
- 1...Se4
- 2.Qxe3#
- 1...Sd5
- 2.Qxd1#
- threat
- 1.Qf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 6
- Sets
- R(d);N_GUARD::R1(A)
- R(d);N_GUARD::R1(A),XR(d)
- B(b);N_GUARD::S(C),XB(b)
- B(b);CHECK,XQ(E)::S(C),XB(b)
- S(h);N_PINQ(E)::QAR(E),XR(d)
- S(h);N_PINQ(E),N_SPINP(j)::QAB1(E)
- Tries
- Try
- K(G);N_SPINQ(E),S_FLIGHT
- Threat
- DUALS(3)
- Vars
- B(b);XQ(E)::S(C),XB(b)
- Q(f);::QAB1(E)
- S(h);::QAR(E),XR(d)
- S(h);N_SPINP(j)::QAB1(E)
- Refutation
- B(i);XS(D)
- Try
- R(H);CHECK,XP(j)
- Vars
- B(b);P_SPINB(b)::S(C)
- Refutation
- S(h);XR(H)
- Try
- Q(E);N_SPINQ(E),XB(b)
- Threat
- DUALS(3)
- Vars
- Q(f);XB(B)::S(C)
- R(d);N_GUARD::R1(A),XR(d)
- Q(f);::S(C)
- R(a);::S(C)
- S(h);N_GUARD::QAR1(E),XS(h)
- Refutation
- Q(f);CHECK,XQ(E)
- Try
- Actual
- Q(E);
- Threat
- S(C)
- Vars
- B(b);CHECK,XQ(E)::S(C),XB(b)
- R(d);N_GUARD::R1(A),XR(d)
- S(h);N_PINQ(E)::QAB1(E),XP(c)
- S(h);N_PINQ(E),N_SPINP(j)::QAR(E),XR(a)
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).