MESON Chess Problem Database
Problem Display
PID: 270691 (3N4/8/2N5/2b1B1p1/rR1pk1Pp/pR4n1/K1P5/1BQ5 w - - 0 1)
Tkachenko, Sergiy Ivanovich
Die Schwalbe, 2023
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Sh1
- 2.Qxh1#
- 1...Se2
- 2.Qh1#
- 1...Sf5
- 2.Qh1#
- 1...Sh5
- 2.Qh1#
- 1...Sh1
- Tries
- 1.Bxg3?
- threat
- 2.Qh1#
- 1...Kd5
- 2.Qh1#
- 1...hxg3!
- threat
- 1.Rxg3?
- threat
- 2.Qh1#
- 1...Kd5
- 2.Qh1#
- 1...hxg3!
- threat
- 1.Rxd4+?
- 1...Bxd4
- 2.c4#
- 1...Rxd4!
- 1...Bxd4
- 1.Qe1+?
- 1...Se2
- 2.Qh1#
- 1...Kd5!
- 1...Se2
- 1.c3+?
- 1...Kd5
- 2.c4#
- 1...Kf3!
- 1...Kd5
- 1.Bxg3?
- Keys
- 1.Qd1!
- threat
- 2.Qf3#
- 1...Kd5
- 2.c4#
- 1...Se2
- 2.Qh1#
- threat
- 1.Qd1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- S(b);N_GUARD::QAB(B),XS(b)
- S(b);N_GUARD::QAB(B)
- Tries
- Try
- B(H);XS(b)
- Threat
- QAB(B)
- Vars
- K(e);N_SPINP(d),S_FLIGHT::QAB(B)
- Refutation
- P(f);XB(H)
- Try
- R(E);XS(b)
- Threat
- QAB(B)
- Vars
- K(e);N_SPINP(d),S_FLIGHT::QAB(B)
- Refutation
- P(f);XR(E)
- Try
- R(F);CHECK,XP(d)
- Vars
- B(g);XR(F)::B(A)+P(D)
- Refutation
- R(c);XR(F)
- Try
- Q(B);CHECK
- Vars
- S(b);N_GUARD,P_SPINS(b)::QAB(B)
- Refutation
- K(e);N_SPINP(d),S_FLIGHT
- Try
- P(D);CHECK
- Vars
- K(e);N_SPINP(d),S_CUTP(d),S_FLIGHT::P(D)
- Refutation
- K(e);N_SPINP(d),S_FLIGHT
- Try
- Actual
- Q(B);
- Threat
- QAB1(B)
- Vars
- K(e);S_FLIGHT::P(D)
- S(b);N_GUARD::QAB(B)
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).