MESON Chess Problem Database
Problem Display
PID: 250938 (5B2/4r2r/2R2Pp1/3pk1P1/1p2P1B1/1NP1R3/1p4Np/1Q5K w - - 0 1)
Janevski, Zivko
Uralski Problemist, 2011
#2
12 + 8
SOLUTION
- SOUND
- Sets
- 1...Re6
- 2.Rxe6#
- 1...Ra7
- 2.Bd6#
- 2.Re6#
- 1...Rb7
- 2.Bd6#
- 2.Re6#
- 1...Rc7
- 2.Bd6#
- 2.Re6#
- 1...Rd7
- 2.Re6#
- 1...Ref7
- 2.Bd6#
- 2.Re6#
- 1...Reg7
- 2.Bd6#
- 2.Re6#
- 1...Re8
- 2.Bd6#
- 1...dxe4
- 2.Qxe4#
- 1...d4
- 2.cxd4#
- 1...Re6
- Tries
- 1.Se1?
- threat
- 2.Sd3#
- 1...dxe4
- 2.Qxe4#
- 1...Kf4!
- threat
- 1.Sf4?
- threat
- 2.Sd3#
- 2.Sxg6#
- 1...dxe4
- 2.Rxe4#
- 2.Qxe4#
- 1...Reg7
- 2.Sd3#
- 2.Bd6#
- 1...Rh6
- 2.Sd3#
- 1...Rhg7
- 2.Sd3#
- 1...Kxf4!
- threat
- 1.Sd2?
- threat
- 2.Sf3#
- 1...dxe4
- 2.Qxe4#
- 1...Rh3!
- threat
- 1.Sd4?
- threat
- 2.Sf3#
- 1...dxe4
- 2.Qxe4#
- 1...Rh3!
- threat
- 1.Sc5?
- threat
- 2.Sd3#
- 1...dxe4
- 2.Qxe4#
- 1...bxc3!
- threat
- 1.Bf3?
- threat
- 2.exd5#
- 1...dxe4
- 2.Qxe4#
- 1...d4
- 2.cxd4#
- 1...Rh4!
- threat
- 1.Bxe7?
- threat
- 2.Bd6#
- 2.Re6#
- 1...dxe4
- 2.Rc5#
- 2.Qxe4#
- 1...Rxe7!
- threat
- 1.Rd3?
- threat
- 2.Rxd5#
- 1...Kxe4
- 2.Re3#
- 1...dxe4
- 2.Rc5#
- 1...Rd7
- 2.Re6#
- 1...d4!
- threat
- 1.Qd1?
- threat
- 2.Qd4#
- 2.Qxd5#
- 2.exd5#
- 1...dxe4
- 2.Rc5#
- 2.Qd4#
- 2.Qd6#
- 1...b1B
- 2.Qd4#
- 2.Qxd5#
- 1...b1R
- 2.exd5#
- 1...Rh3
- 2.Qd4#
- 2.Qxd5#
- 1...Rd7
- 2.Re6#
- 2.Qd4#
- 2.exd5#
- 1...d4
- 2.Qxd4#
- 2.cxd4#
- 1...b1Q!
- threat
- 1.fxe7?
- threat
- 2.Re6#
- 1...dxe4
- 2.Qxe4#
- 1...Rxe7!
- threat
- 1.Se1?
- Keys
- 1.Rc5!
- threat
- 2.Rxd5#
- 1...Kd6
- 2.e5#
- 1...Rd7
- 2.exd5#
- threat
- 1.Rc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- R(g);N_GUARD::R1(J),XR(g)
- R(g);N_GUARD::R1(J)
- R(g);OGATE::B(L)
- P(d);OGATE,P_SPINP(d),XP(G)::QAR1(A),XP(d)
- P(d);OGATE::P(E),XP(d)
- Tries
- Try
- S(C);
- Threat
- S(C)
- Vars
- P(d);OGATE,P_SPINP(d),XP(G)::QAR1(A),XP(d)
- Refutation
- K(e);S_FLIGHT
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- R(h);::S(C)
- Refutation
- K(e);S_FLIGHT,XS(C)
- Try
- S(D);
- Threat
- S(D)
- Vars
- P(d);OGATE,P_SPINP(d),XP(G)::QAR1(A),XP(d)
- Refutation
- R(h);
- Try
- S(D);
- Threat
- S(D)
- Vars
- P(d);OGATE,P_SPINP(d),XP(G)::QAR1(A),XP(d)
- Refutation
- R(h);
- Try
- S(D);
- Threat
- S(D)
- Vars
- P(d);OGATE,P_SPINP(d),XP(G)::QAR1(A),XP(d)
- Refutation
- P(c);XP(E)
- Try
- B(H);
- Threat
- R(F)+P(G),XP(d)
- Vars
- P(d);OGATE,P_SPINP(d),XP(G)::QAR1(A),XP(d)
- P(d);OGATE::P(E),XP(d)
- Refutation
- R(h);
- Try
- B(L);XR(g)
- Threat
- DUALS(2)
- Refutation
- R(h);XB(L)
- Try
- R(F);
- Threat
- R1(F),XP(d)
- Vars
- K(e);OGATEB,P-FLIGHT,XP(G)::QAB(A)+R(F),DCHECK
- P(d);OGATEB,SBLOCK,XP(G)::R(J)
- R(g);N_GUARD::R1(J)
- Refutation
- P(d);
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- P(a);P_PINQ(A)::R(F)+P(G),XP(d)
- Refutation
- P(a);P_PINQ(A)
- Try
- P(K);XR(g)
- Threat
- R1(J)
- Vars
- P(d);OGATE,P_SPINP(d),XP(G)::QAR1(A),XP(d)
- Refutation
- R(h);XP(K)
- Try
- Actual
- R(J);P_PINP(d)
- Threat
- R1(J),XP(d)
- Vars
- K(e);N_SPINP(d),OGATE,P_SPINR(g),S_FLIGHT::P(G)
- R(g);::R(F)+P(G),XP(d)
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).