MESON Chess Problem Database
Problem Display
PID: 238602 (3R3B/1bp3R1/2np4/p1PpN3/3kPb2/3NpB2/1KQ1P3/1n6 w - - 0 1)
Murashev, Pavel Aleksandrovich
Problemist Ukraini, 2019
#2
11 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ba6
- 2.Sxc6#
- 1...Bc8
- 2.Sxc6#
- 1...Sd2
- 2.Qc3#
- 1...Sa3
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sa7
- 2.Qa4#
- 1...Se7
- 2.Qa4#
- 1...Sb8
- 2.Qa4#
- 1...Sxd8
- 2.Qa4#
- 1...dxe4
- 2.Qc4#
- 1...dxc5
- 2.Rxd5#
- 2.Qc4#
- 2.Qxc5#
- 1...dxe5
- 2.Rxd5#
- 1...Ba6
- Tries
- 1.Rg1?
- threat
- 2.Sxc6#
- 1...Sxe5
- 2.Qa4#
- 1...Sxd8
- 2.Sc6#
- 2.Qa4#
- 1...dxe4
- 2.Qc4#
- 1...dxe5
- 2.Rxd5#
- 1...Sc3
- 2.Qxc3#
- 1...Sb4
- 2.Sc6#
- 1...Sa7
- 2.Sc6#
- 2.Qa4#
- 1...Se7
- 2.Sc6#
- 2.Qa4#
- 1...Sb8
- 2.Sc6#
- 2.Qa4#
- 1...Bxe5!
- threat
- 1.Rg2?
- threat
- 2.Sxc6#
- 1...Sxe5
- 2.Qa4#
- 1...Sxd8
- 2.Sc6#
- 2.Qa4#
- 1...dxe4
- 2.Qc4#
- 1...dxe5
- 2.Rxd5#
- 1...Sc3
- 2.Qxc3#
- 1...Sb4
- 2.Sc6#
- 1...Sa7
- 2.Sc6#
- 2.Qa4#
- 1...Se7
- 2.Sc6#
- 2.Qa4#
- 1...Sb8
- 2.Sc6#
- 2.Qa4#
- 1...Bxe5!
- threat
- 1.Rg3?
- threat
- 2.Sxc6#
- 1...Sxe5
- 2.Qa4#
- 1...Sxd8
- 2.Sc6#
- 2.Qa4#
- 1...dxe4
- 2.Qc4#
- 1...dxe5
- 2.Rxd5#
- 1...Sc3
- 2.Qxc3#
- 1...Sb4
- 2.Sc6#
- 1...Sa7
- 2.Sc6#
- 2.Qa4#
- 1...Se7
- 2.Sc6#
- 2.Qa4#
- 1...Sb8
- 2.Sc6#
- 2.Qa4#
- 1...Bxe5!
- threat
- 1.Rg5?
- threat
- 2.Sxc6#
- 1...Sxe5
- 2.Qa4#
- 1...Sxd8
- 2.Sc6#
- 2.Qa4#
- 1...dxe5
- 2.Rxd5#
- 1...Sc3
- 2.Qxc3#
- 1...Sb4
- 2.Sc6#
- 1...Sa7
- 2.Sc6#
- 2.Qa4#
- 1...Se7
- 2.Sc6#
- 2.Qa4#
- 1...Sb8
- 2.Sc6#
- 2.Qa4#
- 1...Bxe5!
- threat
- 1.Rg6?
- threat
- 2.Sxc6#
- 1...Sxe5
- 2.Qa4#
- 1...Sxd8
- 2.Sc6#
- 2.Qa4#
- 1...dxe4
- 2.Qc4#
- 1...dxe5
- 2.Rxd5#
- 1...Sc3
- 2.Qxc3#
- 1...Sb4
- 2.Sc6#
- 1...Sa7
- 2.Sc6#
- 2.Qa4#
- 1...Se7
- 2.Sc6#
- 2.Qa4#
- 1...Sb8
- 2.Sc6#
- 2.Qa4#
- 1...Bxe5!
- threat
- 1.Rxc7?
- threat
- 2.Sxc6#
- 1...Sxe5
- 2.Qa4#
- 1...Sxd8
- 2.Sc6#
- 2.Qa4#
- 1...dxe4
- 2.Rxd6#
- 2.Qc4#
- 1...dxe5
- 2.Rxd5#
- 1...Sc3
- 2.Qxc3#
- 1...Sb4
- 2.Sc6#
- 1...Sa7
- 2.Sc6#
- 2.Qa4#
- 1...Se7
- 2.Sc6#
- 2.Qa4#
- 1...Sb8
- 2.Sc6#
- 2.Qa4#
- 1...Bxe5!
- threat
- 1.Rgd7?
- threat
- 2.Sxc6#
- 1...Sxe5
- 2.Qa4#
- 1...Sxd8
- 2.Sc6#
- 2.Qa4#
- 1...dxe4
- 2.Qc4#
- 1...dxe5
- 2.Rxd5#
- 1...Sc3
- 2.Qxc3#
- 1...Sb4
- 2.Sc6#
- 1...Sa7
- 2.Sc6#
- 2.Qa4#
- 1...Se7
- 2.Sc6#
- 2.Qa4#
- 1...Sb8
- 2.Sc6#
- 2.Qa4#
- 1...Bxe5!
- threat
- 1.Re7?
- threat
- 2.Sxc6#
- 1...Sxe5
- 2.Qa4#
- 1...Sxe7
- 2.Sc6#
- 2.Qa4#
- 1...Sxd8
- 2.Sc6#
- 2.Qa4#
- 1...dxe4
- 2.Qc4#
- 1...dxe5
- 2.Rxd5#
- 1...Sc3
- 2.Qxc3#
- 1...Sb4
- 2.Sc6#
- 1...Sa7
- 2.Sc6#
- 2.Qa4#
- 1...Sb8
- 2.Sc6#
- 2.Qa4#
- 1...Bxe5!
- threat
- 1.Rf7?
- threat
- 2.Sxc6#
- 1...Sxe5
- 2.Qa4#
- 1...Sxd8
- 2.Sc6#
- 2.Qa4#
- 1...dxe4
- 2.Qc4#
- 1...dxe5
- 2.Rxd5#
- 1...Sc3
- 2.Qxc3#
- 1...Sb4
- 2.Sc6#
- 1...Sa7
- 2.Sc6#
- 2.Qa4#
- 1...Se7
- 2.Sc6#
- 2.Qa4#
- 1...Sb8
- 2.Sc6#
- 2.Qa4#
- 1...Bxe5!
- threat
- 1.Rh7?
- threat
- 2.Sxc6#
- 1...Sxe5
- 2.Qa4#
- 1...Sxd8
- 2.Sc6#
- 2.Qa4#
- 1...dxe4
- 2.Qc4#
- 1...dxe5
- 2.Rxd5#
- 1...Sc3
- 2.Qxc3#
- 1...Sb4
- 2.Sc6#
- 1...Sa7
- 2.Sc6#
- 2.Qa4#
- 1...Se7
- 2.Sc6#
- 2.Qa4#
- 1...Sb8
- 2.Sc6#
- 2.Qa4#
- 1...Bxe5!
- threat
- 1.Rgg8?
- threat
- 2.Sxc6#
- 1...Sxe5
- 2.Qa4#
- 1...Sxd8
- 2.Sc6#
- 2.Qa4#
- 1...dxe4
- 2.Qc4#
- 1...dxe5
- 2.Rxd5#
- 1...Sc3
- 2.Qxc3#
- 1...Sb4
- 2.Sc6#
- 1...Sa7
- 2.Sc6#
- 2.Qa4#
- 1...Se7
- 2.Sc6#
- 2.Qa4#
- 1...Sb8
- 2.Sc6#
- 2.Qa4#
- 1...Bxe5!
- threat
- 1.exd5?
- threat
- 2.Qc4#
- 1...Bxe5
- 2.Rg4#
- 1...dxe5
- 2.dxc6#
- 1...Ba6
- 2.Sxc6#
- 1...Sd2
- 2.Qc3#
- 1...Sa3
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sxe5!
- threat
- 1.cxd6?
- threat
- 2.Qc5#
- 1...Sc3
- 2.Qxc3#
- 1...cxd6!
- threat
- 1.Rg1?
- Keys
- 1.Rg4!
- threat
- 2.Sxc6#
- 1...Bxe5
- 2.exd5#
- 1...Sxe5
- 2.Qa4#
- 1...Sxd8
- 2.Sc6#
- 2.Qa4#
- 1...dxe4
- 2.Qc4#
- 1...dxe5
- 2.Rxd5#
- 1...Sc3
- 2.Qxc3#
- 1...Sb4
- 2.Sc6#
- 1...Sa7
- 2.Sc6#
- 2.Qa4#
- 1...Se7
- 2.Sc6#
- 2.Qa4#
- 1...Sb8
- 2.Sc6#
- 2.Qa4#
- threat
- 1.Rg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 8
- Sets
- B(i);N_GUARD::S(H),XS(g)
- S(a);N_GUARD::QAB1(B)
- S(a);N_GUARD::QAB1(B),XS(a)
- S(g);N_GUARD::QAR(B)
- S(g);N_GUARD,XR(J)::QAR(B)
- P(f);N_GUARD,P_SPINP(h),XP(F)::QAR1(B)
- P(h);OGATE,P_SPINP(f),XS(H)::R1(J),XP(f)
- Tries
- Try
- R(I);
- Threat
- B(K)+S(H),DCHECK,XS(g)
- Vars
- S(g);N_GUARD,P_SPINS(g),XS(H)::QAR(B)
- P(f);N_GUARD,P_SPINP(h),XP(F)::QAR1(B)
- P(h);OGATE,P_SPINP(f),XS(H)::R1(J),XP(f)
- S(a);N_GUARD::QAB1(B),XS(a)
- S(g);::B(K)+S(H),DCHECK
- Refutation
- B(d);P_SPINB(d),XS(H)
- Try
- R(I);
- Threat
- B(K)+S(H),DCHECK,XS(g)
- Vars
- S(g);N_GUARD,P_SPINS(g),XS(H)::QAR(B)
- P(f);N_GUARD,P_SPINP(h),XP(F)::QAR1(B)
- P(h);OGATE,P_SPINP(f),XS(H)::R1(J),XP(f)
- S(a);N_GUARD::QAB1(B),XS(a)
- S(g);::B(K)+S(H),DCHECK
- Refutation
- B(d);P_SPINB(d),XS(H)
- Try
- R(I);
- Threat
- B(K)+S(H),DCHECK,XS(g)
- Vars
- S(g);N_GUARD,P_SPINS(g),XS(H)::QAR(B)
- P(f);N_GUARD,P_SPINP(h),XP(F)::QAR1(B)
- P(h);OGATE,P_SPINP(f),XS(H)::R1(J),XP(f)
- S(a);N_GUARD::QAB1(B),XS(a)
- S(g);::B(K)+S(H),DCHECK
- Refutation
- B(d);P_SPINB(d),XS(H)
- Try
- R(I);
- Threat
- B(K)+S(H),DCHECK,XS(g)
- Vars
- S(g);N_GUARD,P_SPINS(g),XS(H)::QAR(B)
- P(h);OGATE,P_SPINP(f),XS(H)::R1(J),XP(f)
- S(a);N_GUARD::QAB1(B),XS(a)
- S(g);::B(K)+S(H),DCHECK
- Refutation
- B(d);P_SPINB(d),XS(H)
- Try
- R(I);
- Threat
- B(K)+S(H),DCHECK,XS(g)
- Vars
- S(g);N_GUARD,P_SPINS(g),XS(H)::QAR(B)
- P(f);N_GUARD,P_SPINP(h),XP(F)::QAR1(B)
- P(h);OGATE,P_SPINP(f),XS(H)::R1(J),XP(f)
- S(a);N_GUARD::QAB1(B),XS(a)
- S(g);::B(K)+S(H),DCHECK
- Refutation
- B(d);P_SPINB(d),XS(H)
- Try
- R(I);XP(j)
- Threat
- B(K)+S(H),DCHECK,XS(g)
- Vars
- S(g);N_GUARD,P_SPINS(g),XS(H)::QAR(B)
- P(h);OGATE,P_SPINP(f),XS(H)::R1(J),XP(f)
- S(a);N_GUARD::QAB1(B),XS(a)
- S(g);::B(K)+S(H),DCHECK
- Refutation
- B(d);P_SPINB(d),XS(H)
- Try
- R(I);
- Threat
- B(K)+S(H),DCHECK,XS(g)
- Vars
- S(g);N_GUARD,P_SPINS(g),XS(H)::QAR(B)
- P(f);N_GUARD,P_SPINP(h),XP(F)::QAR1(B)
- P(h);OGATE,P_SPINP(f),XS(H)::R1(I),XP(f)
- S(a);N_GUARD::QAB1(B),XS(a)
- S(g);::B(K)+S(H),DCHECK
- Refutation
- B(d);P_SPINB(d),XS(H)
- Try
- R(I);
- Threat
- B(K)+S(H),DCHECK,XS(g)
- Vars
- S(g);N_GUARD,P_SPINS(g),XS(H)::QAR(B)
- P(f);N_GUARD,P_SPINP(h),XP(F)::QAR1(B)
- P(h);OGATE,P_SPINP(f),XS(H)::R1(J),XP(f)
- S(a);N_GUARD::QAB1(B),XS(a)
- S(g);::B(K)+S(H),DCHECK
- Refutation
- B(d);P_SPINB(d),XS(H)
- Try
- R(I);
- Threat
- B(K)+S(H),DCHECK,XS(g)
- Vars
- S(g);N_GUARD,P_SPINS(g),XS(H)::QAR(B)
- P(f);N_GUARD,P_SPINP(h),XP(F)::QAR1(B)
- P(h);OGATE,P_SPINP(f),XS(H)::R1(J),XP(f)
- S(a);N_GUARD::QAB1(B),XS(a)
- S(g);::B(K)+S(H),DCHECK
- Refutation
- B(d);P_SPINB(d),XS(H)
- Try
- R(I);
- Threat
- B(K)+S(H),DCHECK,XS(g)
- Vars
- S(g);N_GUARD,P_SPINS(g),XS(H)::QAR(B)
- P(f);N_GUARD,P_SPINP(h),XP(F)::QAR1(B)
- P(h);OGATE,P_SPINP(f),XS(H)::R1(J),XP(f)
- S(a);N_GUARD::QAB1(B),XS(a)
- S(g);::B(K)+S(H),DCHECK
- Refutation
- B(d);P_SPINB(d),XS(H)
- Try
- R(I);
- Threat
- B(K)+S(H),DCHECK,XS(g)
- Vars
- S(g);N_GUARD,P_SPINS(g),XS(H)::QAR(B)
- P(f);N_GUARD,P_SPINP(h),XP(F)::QAR1(B)
- P(h);OGATE,P_SPINP(f),XS(H)::R1(J),XP(f)
- S(a);N_GUARD::QAB1(B),XS(a)
- S(g);::B(K)+S(H),DCHECK
- Refutation
- B(d);P_SPINB(d),XS(H)
- Try
- P(F);XP(f)
- Threat
- QAR1(B)
- Vars
- B(d);OGATEB,XS(H)::R(I)
- P(h);XS(H)::R(J)+P(F),XS(g)
- B(i);N_GUARD::S(H),XS(g)
- S(a);N_GUARD::QAB1(B)
- S(a);N_GUARD::QAB1(B),XS(a)
- Refutation
- S(g);XS(H)
- Try
- P(G);XP(h)
- Threat
- QAB1(B)
- Vars
- S(a);N_GUARD::QAB1(B),XS(a)
- Refutation
- P(j);XP(G)
- Try
- Actual
- R(I);
- Threat
- B(K)+S(H),DCHECK,XS(g)
- Vars
- B(d);P_SPINB(d),XS(H)::R(I)+P(F),XP(f)
- S(g);N_GUARD,P_SPINS(g),XS(H)::QAR(B)
- P(f);N_GUARD,P_SPINP(h),XP(F)::QAR1(B)
- P(h);OGATE,P_SPINP(f),XS(H)::R1(J),XP(f)
- S(a);N_GUARD::QAB1(B),XS(a)
- S(g);::B(K)+S(H),DCHECK
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).