MESON Chess Problem Database
Problem Display
PID: 185119 (2R1R3/8/8/1p1kBP2/r2Np3/1q3p1K/Q4P1P/5rNB w - - 0 1)
Rizzetti, Dante Hugo
Suomen Shakki, 1981
#2
11 + 7
SOLUTION
- SOUND
- Sets
- 1...Rb4
- 2.Qa8#
- 1...Rxd4
- 2.Qa8#
- 1...Ra5
- 2.Qxb3#
- 1...Ra6
- 2.Qxb3#
- 1...Ra7
- 2.Qxb3#
- 1...Ra8
- 2.Qxb3#
- 2.Qxa8#
- 1...e3
- 2.Bxf3#
- 1...b4
- 2.Qxb3#
- 1...Rb4
- Tries
- 1.Sge2?
- threat
- 2.Sc3#
- 2.Sf4#
- 1...Rxa2
- 2.Sf4#
- 1...e3
- 2.Sc3#
- 2.Bxf3#
- 1...Rc1
- 2.Sf4#
- 1...Rc4
- 2.Sf4#
- 1...b4
- 2.Sf4#
- 2.Qxb3#
- 1...fxe2+!
- threat
- 1.Sde2?
- threat
- 2.Sc3#
- 2.Sf4#
- 1...Rxa2
- 2.Sf4#
- 1...e3
- 2.Sc3#
- 1...Rc1
- 2.Sf4#
- 1...Rc4
- 2.Sf4#
- 1...b4
- 2.Sf4#
- 2.Qxb3#
- 1...fxe2+!
- threat
- 1.Sdxf3?
- threat
- 2.Red8#
- 1...e3
- 2.Sd4#
- 1...Ra6
- 2.Qxb3#
- 1...Ra7
- 2.Qxb3#
- 1...exf3!
- threat
- 1.Sge2?
- Keys
- 1.Sgxf3!
- threat
- 2.Red8#
- 1...exf3
- 2.Bxf3#
- 1...e3
- 2.Sg1#
- 1...Ra6
- 2.Qxb3#
- 1...Ra7
- 2.Qxb3#
- threat
- 1.Sgxf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- R(d);OGATE::QAB(C)
- R(d);OGATE,XS(G)::QAB(C)
- R(d);N_GUARD::QAB(C),XQ(b)
- P(e);OGATEB,P_SPINP(c)::B(B),XP(c)
- P(f);S_CUTR(d)::QAB(C),XQ(b)
- Tries
- Try
- S(A);
- Threat
- DUALS(2)
- Vars
- R(d);N_SPINQ(b),XQ(C)::S(A)
- R(a);::S(A)
- R(d);N_SPINQ(b)::S(A)
- Refutation
- P(c);CHECK,P_SPINP(e),XS(A)
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- R(d);N_SPINQ(b),XQ(C)::S(G)
- P(e);P_SPINP(c)::S(G)
- R(a);::S(G)
- R(d);N_SPINQ(b)::S(G)
- Refutation
- P(c);CHECK,P_SPINP(e),XS(G)
- Try
- S(G);P_SPINS(G),XP(c)
- Threat
- R(K)
- Vars
- P(e);N_PINS(G)::B(B)+S(G)
- R(d);N_GUARD::QAB(C),XQ(b)
- Refutation
- P(e);P_SPINP(e),XS(G)
- Try
- Actual
- S(A);P_SPINS(A),XP(c)
- Threat
- R(K)
- Vars
- P(e);OGATE,P_SPINP(e),XS(A)::B(B),XP(e)
- P(e);N_PINS(A)::B(B)+S(A)
- R(d);N_GUARD::QAB(C),XQ(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).