MESON Chess Problem Database
Problem Display
PID: 208694 (3q3B/1Qr4b/p2pp3/2kn3R/B2R4/K1Nn4/3P1r2/6b1 w - - 0 1)
Rossomakho, Yakov V
Zadachi i Etyudi, 2019
#2
8 + 11
SOLUTION
- SOUND
- Sets
- 1...Qh4
- 2.Qxc7#
- 1...Qf8
- 2.Qxc7#
- 1...Qg8
- 2.Qxc7#
- 1...Rf5
- 2.Se4#
- 1...Rc6
- 2.Qxc6#
- 1...Rd7
- 2.Qc6#
- 1...Re7
- 2.Qc6#
- 1...Rf7
- 2.Qc6#
- 1...Be4
- 2.Sxe4#
- 1...Bg8
- 2.Se4#
- 1...Sc1
- 2.Qb4#
- 1...Se1
- 2.Qb4#
- 1...Sb2
- 2.Qb4#
- 1...Sb4
- 2.Qxb4#
- 1...Sf4
- 2.Qb4#
- 1...a5
- 2.Qb5#
- 1...Qh4
- Tries
- 1.Rdxd5+?
- 1...Kc4
- 2.Bb3#
- 2.Rd4#
- 2.Qxa6#
- 2.Qb3#
- 1...exd5!
- 1...Kc4
- 1.Qxa6?
- threat
- 2.Rc4#
- 2.Qb5#
- 2.Qa5#
- 1...Qxh8
- 2.Rc4#
- 1...Qf6
- 2.Rc4#
- 1...Rf6
- 2.Rc4#
- 1...Rg7
- 2.Rc4#
- 1...e5
- 2.Rc4#
- 2.Rxd5#
- 1...Qh4
- 2.Qb5#
- 2.Qa5#
- 1...Qd7
- 2.Rc4#
- 1...Qa8
- 2.Rc4#
- 2.Qb5#
- 1...Qb8
- 2.Rc4#
- 1...Qe8
- 2.Rc4#
- 1...Rf4
- 2.Qb5#
- 2.Qa5#
- 1...Rc6
- 2.Rc4#
- 2.Qb5#
- 2.Qxc6#
- 1...Ra7
- 2.Rc4#
- 2.Qb5#
- 2.Qc6#
- 1...Rb7
- 2.Rc4#
- 2.Qc6#
- 1...Rd7
- 2.Rc4#
- 2.Qb5#
- 2.Qc6#
- 1...Re7
- 2.Rc4#
- 2.Qb5#
- 2.Qc6#
- 1...Rcf7
- 2.Rc4#
- 2.Qb5#
- 2.Qc6#
- 1...Rc8
- 2.Rc4#
- 2.Qb5#
- 1...Sb2
- 2.Qb5#
- 2.Qa5#
- 1...Se5!
- threat
- 1.Rdxd5+?
- Keys
- 1.Rb4!
- threat
- 2.Bd4#
- 2.Qb6#
- 1...Qxh8
- 2.Qb6#
- 2.Qxc7#
- 1...Rxd2
- 2.Qb6#
- 1...Rxb7
- 2.Bd4#
- 1...Sxb4
- 2.Qxb4#
- 1...Qh4
- 2.Qb6#
- 2.Qxc7#
- 1...Qg5
- 2.Bd4#
- 1...Qf6
- 2.Qb6#
- 2.Qxc7#
- 1...Qb8
- 2.Bd4#
- 1...Rf1
- 2.Qb6#
- 1...Re2
- 2.Qb6#
- 1...Rg2
- 2.Qb6#
- 1...Rh2
- 2.Qb6#
- 1...Rf3
- 2.Qb6#
- 1...Rf4
- 2.Qb6#
- 1...Rf5
- 2.Se4#
- 1...Rf6
- 2.Qb6#
- 1...Rff7
- 2.Qb6#
- 1...Rf8
- 2.Qb6#
- 1...Rc6
- 2.Bd4#
- 2.Qxc6#
- 1...Rd7
- 2.Bd4#
- 2.Qc6#
- 1...Re7
- 2.Bd4#
- 2.Qc6#
- 1...Rcf7
- 2.Bd4#
- 2.Qc6#
- 1...Rg7
- 2.Qc6#
- 1...Rc8
- 2.Bd4#
- 1...Bf5
- 2.Bd4#
- 1...Se5
- 2.d4#
- 1...e5
- 2.Qxd5#
- threat
- 1.Rb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 18
- REMOVED MATES = 14
- Sets
- Q(k);N_GUARD::QAR2(G),XR(i)
- R(b);N_SPINS(e),S_CUTB(j)::S(C)
- R(i);N_GUARD::QAR1(G),XR(i)
- R(i);N_GUARD::QAR1(G)
- B(j);N_GUARD::S(C),XB(j)
- B(j);N_GUARD::S(C)
- S(c);N_GUARD::QAB1(G)
- S(c);N_GUARD::QAB1(G),XS(c)
- P(f);N_GUARD::QAR1(G)
- Tries
- Try
- R(E);CHECK,XS(e)
- Refutation
- P(h);P_SPINP(h),XR(E)
- Try
- Q(G);XP(f)
- Threat
- DUALS(3)
- Vars
- Q(k);XB(H)::R1(E)
- Q(k);::R1(E)
- R(b);::R1(E)
- R(i);::R1(E)
- Refutation
- S(c);N_SPINS(e)
- Try
- Actual
- R(E);
- Threat
- DUALS(2)
- Vars
- R(b);XP(A)::QAB1(G)
- R(i);XQ(G)::B(H)
- S(c);OGATE,XR(E)::QAB1(G),XS(c)
- Q(k);N_SPINS(e)::B(H)
- Q(k);::B(H)
- R(b);::QAB1(G)
- R(b);N_SPINS(e),S_CUTB(j)::S(C)
- R(i);N_GUARD::QAR1(G)
- R(i);::B(H)
- B(j);N_SPINS(e)::B(H)
- S(c);N_SPINS(e),OGATE::P(A)
- P(h);N_GUARD,N_SPINS(e)::QAR1(G),XS(e)
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).