MESON Chess Problem Database
Problem Display
PID: 208695 (r3n3/B3r3/Q5p1/2pk2N1/2pPR1N1/2KbP3/6R1/6bB w - - 0 1)
Murashev, Pavel Aleksandrovich
Zadachi i Etyudi, 2019
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Re5
- 2.Rxe5#
- 1...Re6
- 2.Qxe6#
- 1...Rexa7
- 2.Re5#
- 2.Qe6#
- 1...Rb7
- 2.Re5#
- 2.Qe6#
- 1...Rc7
- 2.Re5#
- 2.Qe6#
- 1...Rd7
- 2.Re5#
- 2.Qe6#
- 1...Rf7
- 2.Re5#
- 2.Qe6#
- 1...Rg7
- 2.Re5#
- 2.Qe6#
- 1...Rh7
- 2.Re5#
- 2.Qe6#
- 1...Bxe3
- 2.Sxe3#
- 1...Sd6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Sg7
- 2.Sf6#
- 1...cxd4+
- 2.Rxd4#
- 1...Re5
- Tries
- 1.Se6?
- threat
- 2.Re5#
- 1...cxd4+
- 2.Rxd4#
- 1...Kxe4
- 2.Rf2#
- 1...Rxe6
- 2.Qxe6#
- 1...Bxe4
- 2.Sf4#
- 1...Bh2!
- threat
- 1.Rxg1?
- threat
- 2.Re5#
- 1...cxd4+
- 2.Rxd4#
- 1...Rxe4
- 2.Qe6#
- 1...Re5
- 2.Rxe5#
- 1...Bxe4!
- threat
- 1.Ra2?
- threat
- 2.Re5#
- 1...cxd4+
- 2.Rxd4#
- 1...Rxe4
- 2.Qe6#
- 1...Re5
- 2.Rxe5#
- 1...Bxe4!
- threat
- 1.Rb2?
- threat
- 2.Re5#
- 1...cxd4+
- 2.Rxd4#
- 1...Rxe4
- 2.Qe6#
- 1...Re5
- 2.Rxe5#
- 1...Bxe4!
- threat
- 1.Rc2?
- threat
- 2.Re5#
- 1...cxd4+
- 2.Rxd4#
- 1...Rxe4
- 2.Qe6#
- 1...Re5
- 2.Rxe5#
- 1...Bxe4!
- threat
- 1.Re2?
- threat
- 2.Re5#
- 1...cxd4+
- 2.Rxd4#
- 1...Rxe4
- 2.Qe6#
- 1...Re5
- 2.Rxe5#
- 1...Bxe4!
- threat
- 1.Rf2?
- threat
- 2.Re5#
- 1...cxd4+
- 2.Rxd4#
- 1...Rxe4
- 2.Qe6#
- 1...Re5
- 2.Rxe5#
- 1...Bxe4!
- threat
- 1.Rh2?
- threat
- 2.Re5#
- 1...cxd4+
- 2.Rxd4#
- 1...Rxe4
- 2.Qe6#
- 1...Re5
- 2.Rxe5#
- 1...Bxe4!
- threat
- 1.Rg3?
- threat
- 2.Re5#
- 1...cxd4+
- 2.Rxd4#
- 1...Rxe4
- 2.Qe6#
- 1...Re5
- 2.Rxe5#
- 1...Bxe4!
- threat
- 1.Rxe7?
- threat
- 2.Re5#
- 2.Qe6#
- 1...Bh2
- 2.Qe6#
- 1...Bf5
- 2.Re5#
- 1...Sd6
- 2.Sf6#
- 2.Re5#
- 1...Sc7
- 2.Sf6#
- 2.Re5#
- 2.Rd7#
- 1...Sg7
- 2.Sf6#
- 2.Re5#
- 2.Rd7#
- 1...cxd4+!
- threat
- 1.Qb7+?
- 1...Kd6
- 2.Bxc5#
- 2.dxc5#
- 1...Rxb7!
- 1...Kd6
- 1.Qb6?
- threat
- 2.Qxc5#
- 1...cxd4+
- 2.Rxd4#
- 1...Rc7
- 2.Re5#
- 2.Qe6#
- 1...Rc8!
- threat
- 1.dxc5?
- threat
- 2.Rd4#
- 1...Rxe4
- 2.Qb7#
- 1...Rexa7
- 2.Re5#
- 1...Bxe3
- 2.Sxe3#
- 1...Bxe4
- 2.Rd2#
- 1...Raxa7!
- threat
- 1.Se6?
- Keys
- 1.Rd2!
- threat
- 2.Re5#
- 1...cxd4+
- 2.Rxd4#
- 1...Rxe4
- 2.Qe6#
- 1...Bxe4
- 2.dxc5#
- 1...Re5
- 2.Rxe5#
- threat
- 1.Rd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- R(g);N_GUARD::R1(F),XR(g)
- R(g);N_GUARD::QAB1(I),XR(g)
- B(a);XP(D)::S(G),XB(a)
- S(i);N_GUARD::S(G)
- S(i);N_GUARD::S(G),XS(i)
- P(d);CHECK,OGATE,XP(E)::R1(F),XP(d)
- Tries
- Try
- S(H);
- Threat
- R1(F)
- Vars
- P(d);CHECK,OGATE,XP(E)::R1(F),XP(d)
- K(e);OGATEB,S_FLIGHT,XR(F)::B(A)+R(B)
- R(g);OGATE,XS(H)::QAB1(I),XR(g)
- B(b);SBLOCK,XR(F)::S(H)
- Refutation
- B(a);
- Try
- R(B);XB(a)
- Threat
- B(A)+R(F),DCHECK
- Vars
- P(d);CHECK,OGATE,XP(E)::B(A)+R(F),DCHECK,XP(d)
- R(g);N_GUARD,P_SPINR(g),XR(F)::QAB1(I)
- R(g);::B(A)+R(F),DCHECK,XR(g)
- Refutation
- B(b);P_SPINB(b),XR(F)
- Try
- R(B);
- Threat
- B(A)+R(F),DCHECK
- Vars
- P(d);CHECK,OGATE,XP(E)::B(A)+R(F),DCHECK,XP(d)
- R(g);N_GUARD,P_SPINR(g),XR(F)::QAB1(I)
- R(g);::B(A)+R(F),DCHECK,XR(g)
- Refutation
- B(b);P_SPINB(b),XR(F)
- Try
- R(B);
- Threat
- B(A)+R(F),DCHECK
- Vars
- P(d);CHECK,OGATE,XP(E)::B(A)+R(F),DCHECK,XP(d)
- R(g);N_GUARD,P_SPINR(g),XR(F)::QAB1(I)
- R(g);::B(A)+R(F),DCHECK,XR(g)
- Refutation
- B(b);P_SPINB(b),XR(F)
- Try
- R(B);
- Threat
- B(A)+R(F),DCHECK
- Vars
- P(d);CHECK,OGATE,XP(E)::B(A)+R(F),DCHECK,XP(d)
- R(g);N_GUARD,P_SPINR(g),XR(F)::QAB1(I)
- R(g);::B(A)+R(F),DCHECK,XR(g)
- Refutation
- B(b);P_SPINB(b),XR(F)
- Try
- R(B);
- Threat
- B(A)+R(F),DCHECK
- Vars
- P(d);CHECK,OGATE,XP(E)::B(A)+R(F),DCHECK,XP(d)
- R(g);N_GUARD,P_SPINR(g),XR(F)::QAB1(I)
- R(g);::B(A)+R(F),DCHECK,XR(g)
- Refutation
- B(b);P_SPINB(b),XR(F)
- Try
- R(B);
- Threat
- B(A)+R(F),DCHECK
- Vars
- P(d);CHECK,OGATE,XP(E)::B(A)+R(F),DCHECK,XP(d)
- R(g);N_GUARD,P_SPINR(g),XR(F)::QAB1(I)
- R(g);::B(A)+R(F),DCHECK,XR(g)
- Refutation
- B(b);P_SPINB(b),XR(F)
- Try
- R(B);
- Threat
- B(A)+R(F),DCHECK
- Vars
- P(d);CHECK,OGATE,XP(E)::B(A)+R(F),DCHECK,XP(d)
- R(g);N_GUARD,P_SPINR(g),XR(F)::QAB1(I)
- R(g);::B(A)+R(F),DCHECK,XR(g)
- Refutation
- B(b);P_SPINB(b),XR(F)
- Try
- R(B);
- Threat
- B(A)+R(F),DCHECK
- Vars
- P(d);CHECK,OGATE,XP(E)::B(A)+R(F),DCHECK,XP(d)
- R(g);N_GUARD,P_SPINR(g),XR(F)::QAB1(I)
- R(g);::B(A)+R(F),DCHECK,XR(g)
- Refutation
- B(b);P_SPINB(b),XR(F)
- Try
- R(F);XR(g)
- Threat
- DUALS(2)
- Vars
- B(a);::QAB1(I)
- B(b);::R1(F)
- Refutation
- P(d);CHECK,XP(E)
- Try
- Q(I);CHECK
- Refutation
- R(g);XQ(I)
- Try
- Q(I);
- Threat
- QAR1(I),XP(d)
- Vars
- P(d);CHECK,OGATE,XP(E)::R1(F),XP(d)
- Refutation
- R(h);
- Try
- P(E);XP(d)
- Threat
- R1(F)
- Vars
- R(g);N_GUARD,XR(F)::QAB(I)
- R(g);N_GUARD,XB(J)::R1(F)
- B(a);XP(D)::S(G),XB(a)
- B(b);OGATEB,XR(F)::R(B)
- Refutation
- R(h);XB(J)
- Try
- Actual
- R(B);
- Threat
- B(A)+R(F),DCHECK
- Vars
- P(d);CHECK,OGATE,XP(E)::B(A)+R(F),DCHECK,XP(d)
- R(g);N_GUARD,P_SPINR(g),XR(F)::QAB1(I)
- B(b);P_SPINB(b),XR(F)::R(B)+P(E),XP(d)
- R(g);::B(A)+R(F),DCHECK,XR(g)
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).