MESON Chess Problem Database
Problem Display
PID: 269681 (4r3/7p/B1RNbN2/q2p4/3kP3/3P1pQ1/2P2P1K/8 w - - 0 1)
Suvorov, Ivan
Shakhmatnaya kompozitsiya, 1997
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.Sb5#
- 1...Qd2
- 2.Sb5#
- 1...Qc3
- 2.Sb5#
- 1...Qb6
- 2.c3#
- 1...Qc7
- 2.Sb5#
- 2.c3#
- 1...Qd8
- 2.Sb5#
- 2.c3#
- 1...Qa1
- 2.Sb5#
- 1...Qa2
- 2.Sb5#
- 2.c3#
- 1...Qa3
- 2.Sb5#
- 1...Qa4
- 2.c3#
- 1...Qb5
- 2.Sxb5#
- 1...Bf5
- 2.Sxf5#
- 1...Bf7
- 2.Sf5#
- 1...Bg8
- 2.Sf5#
- 1...Qe1
- Tries
- 1.Qf4?
- threat
- 2.exd5#
- 2.e5#
- 1...dxe4
- 2.Qxe4#
- 1...Qe1
- 2.Sb5#
- 1...Qd2
- 2.Sb5#
- 1...Bh3
- 2.e5#
- 1...Bg4
- 2.e5#
- 1...Bf5
- 2.Sxf5#
- 1...Bd7
- 2.e5#
- 1...Bf7
- 2.Sf5#
- 2.e5#
- 1...Bc8
- 2.e5#
- 1...Bg8
- 2.Sf5#
- 2.e5#
- 1...Qc5!
- threat
- 1.exd5?
- threat
- 2.Rc4#
- 2.Qf4#
- 1...Qxd5
- 2.c3#
- 1...Qxa6
- 2.Qf4#
- 1...Bxd5
- 2.Sf5#
- 1...Qe1
- 2.Sb5#
- 2.Rc4#
- 1...Qd2
- 2.Sb5#
- 2.Rc4#
- 1...Qc3
- 2.Sb5#
- 2.Qf4#
- 1...Qb4
- 2.Qf4#
- 1...Qc7
- 2.Sb5#
- 2.Qf4#
- 2.c3#
- 1...Qa2
- 2.Sb5#
- 2.Qf4#
- 2.c3#
- 1...Qa4
- 2.Qf4#
- 2.c3#
- 1...Qb5
- 2.Sxb5#
- 2.Qf4#
- 1...Rc8
- 2.Qf4#
- 1...Bh3
- 2.Rc4#
- 1...Bg4
- 2.Rc4#
- 1...Bf5
- 2.Sxf5#
- 2.Rc4#
- 1...Bd7
- 2.Rc4#
- 1...Bf7
- 2.Sf5#
- 2.Rc4#
- 1...Bc8
- 2.Rc4#
- 1...Bg8
- 2.Sf5#
- 2.Rc4#
- 1...Qc5!
- threat
- 1.e5?
- threat
- 2.Qf4#
- 1...Qe1
- 2.Sb5#
- 1...Qd2
- 2.Sb5#
- 1...Bf5
- 2.Sxf5#
- 1...Qc5!
- threat
- 1.Qf4?
- Keys
- 1.Sxd5!
- threat
- 2.Rc4#
- 2.Qg7#
- 1...Qxd5
- 2.c3#
- 1...Qxa6
- 2.Qg7#
- 1...Bxd5
- 2.Sf5#
- 1...Qc3
- 2.Sb5#
- 2.Qg7#
- 1...Qb4
- 2.Qg7#
- 1...Qc7
- 2.Sb5#
- 2.c3#
- 1...Qd8
- 2.Sb5#
- 2.Rc4#
- 2.c3#
- 1...Qa2
- 2.Sb5#
- 2.Qg7#
- 2.c3#
- 1...Qa4
- 2.Qg7#
- 2.c3#
- 1...Qb5
- 2.Sxb5#
- 2.Qg7#
- 1...Qc5
- 2.Qg7#
- 1...Re7
- 2.Rc4#
- 1...Rc8
- 2.Qg7#
- 1...Rf8
- 2.Rc4#
- 1...Rg8
- 2.Rc4#
- 1...Bh3
- 2.Rc4#
- 1...Bg4
- 2.Rc4#
- 1...Bf5
- 2.Sxf5#
- 2.Rc4#
- 1...Bd7
- 2.Rc4#
- 1...Bf7
- 2.Sf5#
- 2.Rc4#
- 1...Bc8
- 2.Rc4#
- 1...Bg8
- 2.Sf5#
- 2.Rc4#
- threat
- 1.Sxd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 13
- REMOVED MATES = 11
- Sets
- Q(c);N_GUARD::S(I)
- Q(c);N_GUARD,P_PINP(B)::S(I)
- Q(c);N_GUARD::P(A)
- Q(c);N_GUARD::S(I),XQ(c)
- B(e);N_GUARD::S(I),XB(e)
- B(e);N_GUARD::S(I)
- Tries
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- P(d);OGATE,P_SPINP(d),XP(F)::QAR1(E),XP(d)
- Q(c);N_GUARD::S(I)
- Q(c);N_GUARD,P_PINP(B)::S(I)
- B(e);::QAR(E)+P(F)
- B(e);N_GUARD::S(I),XB(e)
- Refutation
- Q(c);
- Try
- P(F);XP(d)
- Threat
- DUALS(2)
- Vars
- Q(c);N_GUARD,XP(F)::P(A)
- Q(c);XB(G)::QAR2(E)
- B(e);N_GUARD,XP(F)::S(I)
- Q(c);::QAR2(E)
- R(g);::QAR2(E)
- B(e);::R1(H)
- Refutation
- Q(c);
- Try
- P(F);
- Threat
- QAR2(E)
- Vars
- Q(c);N_GUARD::S(I)
- Q(c);N_GUARD,P_PINP(B)::S(I)
- B(e);N_GUARD::S(I),XB(e)
- Refutation
- Q(c);
- Try
- Actual
- S(J);XP(d)
- Threat
- DUALS(2)
- Vars
- Q(c);N_GUARD,XS(J)::P(A)
- Q(c);XB(G)::QAB(E)
- B(e);N_GUARD,XS(J)::S(I)
- Q(c);::QAB(E)
- R(g);::R1(H)
- R(g);::QAB(E)
- B(e);::R1(H)
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).