MESON Chess Problem Database
Problem Display
PID: 238503 (3n1r2/1R1Q4/B4pNp/7K/1p2k1p1/R1b4P/1n1p1B2/3N4 w - - 0 1)
Chernyavsky, Mykola Vasilovich
Murashev, Pavel Aleksandrovich
Variantim, 2020
#2
9 + 10
SOLUTION
- SOUND
- Sets
- 1...Kf3
- 2.Qxg4#
- 2.Qd5#
- 1...Be5
- 2.Re3#
- 1...Sxd1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa4
- 2.Qd3#
- 1...Sxb7
- 2.Bxb7#
- 1...Kf3
- Tries
- 1.Se3?
- threat
- 2.Qxg4#
- 2.Qd5#
- 1...Kf3
- 2.Qf5#
- 1...gxh3
- 2.Qg4#
- 2.Qd5#
- 1...d1B
- 2.Qd5#
- 1...d1R
- 2.Qxg4#
- 1...Be5
- 2.Qd5#
- 1...Sd3
- 2.Qd5#
- 1...Sc4
- 2.Qd5#
- 1...Se6
- 2.Qd5#
- 1...g3
- 2.Qg4#
- 2.Qd5#
- 1...f5
- 2.Qd5#
- 1...d1Q!
- threat
- 1.Bd3+?
- 1...Kf3
- 2.Qxg4#
- 2.Qd5#
- 1...Sxd3!
- 1...Kf3
- 1.Bc4?
- threat
- 2.Qxg4#
- 2.Qd5#
- 1...Kf3
- 2.Qxg4#
- 2.Qd5#
- 1...gxh3
- 2.Qg4#
- 2.Qd5#
- 1...Se6
- 2.Qd5#
- 1...Be5
- 2.Bd5#
- 2.Re3#
- 1...Sd3
- 2.Bd5#
- 2.Qxd3#
- 2.Qd5#
- 1...g3
- 2.Qg4#
- 2.Qd5#
- 1...f5
- 2.Qd5#
- 1...Sxc4!
- threat
- 1.Rxc3?
- threat
- 2.Re3#
- 1...Sxd1
- 2.Rxb4#
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Se6
- 2.Qxe6#
- 1...Sc4
- 2.Qd3#
- 1...bxc3!
- threat
- 1.Ra5?
- threat
- 2.Qxg4#
- 2.Qf5#
- 2.Qd5#
- 1...Kf3
- 2.Qxg4#
- 2.Qd5#
- 1...gxh3
- 2.Qg4#
- 2.Qf5#
- 2.Qd5#
- 1...Sd3
- 2.Qf5#
- 2.Qxd3#
- 2.Qd5#
- 1...Sc4
- 2.Qf5#
- 2.Qd5#
- 1...Se6
- 2.Qc6#
- 2.Qd5#
- 1...g3
- 2.Qg4#
- 2.Qf5#
- 2.Qd5#
- 1...f5
- 2.Qd5#
- 1...Be5!
- threat
- 1.Rxb4+?
- 1...Kf3
- 2.Sh4#
- 2.Qxg4#
- 2.Qd5#
- 1...Bxb4
- 2.Re3#
- 1...Bd4
- 2.Re3#
- 2.Rxd4#
- 1...Sc4!
- 1...Kf3
- 1.Qc6+?
- 1...Kf5
- 2.Se3#
- 2.hxg4#
- 1...Sxc6!
- 1...Kf5
- 1.Qd4+?
- 1...Kf3
- 2.Sh4#
- 2.Qxg4#
- 2.Qd5#
- 1...Kf5
- 2.Qxg4#
- 1...Bxd4!
- 1...Kf3
- 1.hxg4?
- threat
- 2.Qf5#
- 1...Kf3
- 2.Qd5#
- 1...Be5
- 2.Re3#
- 1...Se6
- 2.Qc6#
- 1...f5!
- threat
- 1.Se3?
- Keys
- 1.Rb5!
- threat
- 2.Qf5#
- 2.Qd5#
- 1...Kf3
- 2.Qxg4#
- 1...Be5
- 2.Re3#
- 1...Se6
- 2.Bb7#
- 2.Qd5#
- 1...f5
- 2.Qd5#
- threat
- 1.Rb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- B(c);OGATE::R1(C)
- S(a);N_GUARD,XS(A)::QAB1(I)
- S(a);N_GUARD::QAB1(I),XS(a)
- S(a);N_GUARD::QAB1(I)
- S(i);OGATE,XR(H)::B(F),XS(i)
- Tries
- Try
- S(A);
- Threat
- DUALS(2)
- Vars
- K(e);S_FLIGHT::QAR2(I)
- P(b);::QAB1(I)
- P(b);::QAR2(I),XP(f)
- B(c);::QAB1(I)
- S(a);::QAB1(I)
- S(i);::QAB1(I)
- P(g);::QAB1(I)
- Refutation
- P(b);
- Try
- B(F);CHECK
- Refutation
- S(a);XB(F)
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- S(i);::QAB1(I)
- P(g);::QAB1(I)
- Refutation
- S(a);XB(F)
- Try
- R(C);XB(c)
- Threat
- R1(C)
- Vars
- S(a);N_GUARD::QAB1(I),XS(a)
- S(i);N_GUARD::QAR2(I),XS(i)
- S(a);N_GUARD::QAB1(I)
- Refutation
- P(d);XR(C)
- Try
- R(C);
- Threat
- DUALS(3)
- Vars
- P(g);::QAB1(I)
- Refutation
- B(c);
- Try
- R(H);CHECK,XP(d)
- Vars
- B(c);OGATE,XR(H)::R1(C)
- Refutation
- S(a);P_SPINS(a)
- Try
- Q(I);CHECK
- Refutation
- S(i);XQ(I)
- Try
- Q(I);CHECK
- Vars
- K(e);OGATE,S_FLIGHT::QAB1(I),XP(f)
- Refutation
- B(c);XQ(I)
- Try
- P(D);XP(f)
- Threat
- QAB1(I)
- Vars
- K(e);P_SPINB(c),S_FLIGHT::QAB(I)
- B(c);OGATE::R1(C)
- S(i);N_GUARD::QAB(I)
- Refutation
- P(g);
- Try
- Actual
- R(H);
- Threat
- DUALS(2)
- Vars
- K(e);P_SPINB(c),S_FLIGHT::QAB1(I),XP(f)
- B(c);OGATE::R1(C)
- P(g);::QAB1(I)
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).