MESON Chess Problem Database
Problem Display
PID: 278079 (B7/2p2r2/8/2B4n/4N1Q1/1P1k1Nb1/2b5/2R2K2 w - - 0 1)
Chobanyan, Shamil
Phenix, 2007
#2
8 + 6
SOLUTION
- SOUND
- Sets
- 1...Rxf3+
- 2.Qxf3#
- 1...Rf4
- 2.Qd7#
- 1...Bb1
- 2.Rc3#
- 1...Bd1
- 2.Rc3#
- 1...Bxb3
- 2.Rc3#
- 1...Bf2
- 2.Se5#
- 1...Bf4
- 2.Se1#
- 1...Sf4
- 2.Se5#
- 1...Rxf3+
- Tries
- 1.Sf2+?
- 1...Bxf2
- 2.Qc4#
- 1...Kc3!
- 1...Bxf2
- 1.Bf2?
- threat
- 2.Se1#
- 1...Rxf3
- 2.Qxf3#
- 1...Bxf2!
- threat
- 1.Bd5?
- threat
- 2.Bc4#
- 1...Rxf3+
- 2.Qxf3#
- 1...Bxb3
- 2.Rc3#
- 1...Bf4
- 2.Se1#
- 1...Sf4
- 2.Se5#
- 1...Rf4!
- threat
- 1.Bb7?
- threat
- 2.Ba6#
- 1...Rxf3+
- 2.Qxf3#
- 1...Bxb3
- 2.Rc3#
- 1...Rf4
- 2.Qd7#
- 1...Bf4
- 2.Se1#
- 1...Sf4
- 2.Se5#
- 1...Rf6!
- threat
- 1.Qe6?
- threat
- 2.Qc4#
- 2.Qd5#
- 2.Qa6#
- 1...Bxb3
- 2.Rc3#
- 2.Qxb3#
- 1...Rf5
- 2.Qc4#
- 2.Qa6#
- 1...Rf6
- 2.Qc4#
- 2.Qd5#
- 1...Rd7
- 2.Qc4#
- 2.Qa6#
- 1...Bf2
- 2.Se5#
- 2.Qc4#
- 2.Qa6#
- 1...Be5
- 2.Qc4#
- 2.Qa6#
- 1...Bd6
- 2.Qc4#
- 2.Qd5#
- 1...Sf4
- 2.Se5#
- 2.Qc4#
- 2.Qa6#
- 1...Sf6
- 2.Qc4#
- 2.Qa6#
- 1...c6
- 2.Qc4#
- 1...Rxf3+!
- threat
- 1.Qd7+?
- 1...Bd6
- 2.Qb5#
- 1...Rxd7!
- 1...Bd6
- 1.Qf4?
- threat
- 2.Se5#
- 2.Qd2#
- 2.Qe3#
- 1...Bxf4
- 2.Se1#
- 1...Sxf4
- 2.Se5#
- 1...Rf5
- 2.Qd2#
- 2.Qe3#
- 1...Re7
- 2.Qd2#
- 2.Qe3#
- 1...Be1
- 2.Sxe1#
- 2.Se5#
- 2.Qe3#
- 1...Bf2
- 2.Se5#
- 2.Qd2#
- 1...c6
- 2.Se5#
- 2.Qe3#
- 1...Rxf4!
- threat
- 1.Qg5?
- threat
- 2.Qd2#
- 2.Qe3#
- 2.Qd5#
- 1...Bxb3
- 2.Rc3#
- 2.Qd2#
- 2.Qe3#
- 1...c6
- 2.Qe3#
- 1...Rf5
- 2.Qd2#
- 2.Qe3#
- 1...Rf4
- 2.Qd8#
- 2.Qd5#
- 1...Rd7
- 2.Qd2#
- 2.Qe3#
- 1...Be1
- 2.Qe3#
- 2.Qd5#
- 1...Bf2
- 2.Se5#
- 2.Qd2#
- 1...Bf4
- 2.Se1#
- 2.Qd5#
- 1...Be5
- 2.Qd2#
- 2.Qe3#
- 1...Sf4
- 2.Se5#
- 1...Sf6
- 2.Qd2#
- 2.Qe3#
- 1...Rxf3+!
- threat
- 1.Sf2+?
- Keys
- 1.Bc6!
- threat
- 2.Bb5#
- 1...Rxf3+
- 2.Qxf3#
- 1...Bxb3
- 2.Rc3#
- 1...Rf4
- 2.Qd7#
- 1...Bf4
- 2.Se1#
- 1...Sf4
- 2.Se5#
- threat
- 1.Bc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 3
- Sets
- R(f);CHECK,OGATE,XS(D)::QAR2(F),XR(f)
- R(f);N_GUARD,S_CUTB(c)::QAR(F)
- B(a);OGATE::R1(A)
- B(a);OGATE,XP(C)::R1(A)
- B(c);N_PINS(D)::S(D)
- S(d);N_PINS(D)::S(D)
- Tries
- Try
- S(E);CHECK,N_SPINS(D)
- Vars
- B(c);XS(E)::QAB1(F)
- Refutation
- K(b);P-FLIGHT,P_SPINB(a)
- Try
- B(G);N_SPINS(D)
- Threat
- S(D)
- Vars
- R(f);OGATE,P_PINB(G),XS(D)::QAR2(F),XR(f)
- Refutation
- B(c);XB(G)
- Try
- B(H);
- Threat
- B(H)
- Vars
- R(f);CHECK,OGATE,XS(D)::QAR2(F),XR(f)
- B(a);OGATE,XP(C)::R1(A)
- B(c);N_PINS(D)::S(D)
- S(d);N_PINS(D)::S(D)
- Refutation
- R(f);
- Try
- B(H);
- Threat
- B(H)
- Vars
- R(f);CHECK,OGATE,XS(D)::QAR2(F),XR(f)
- B(a);OGATE,XP(C)::R1(A)
- R(f);N_GUARD,S_CUTB(c)::QAR(F)
- B(c);N_PINS(D)::S(D)
- S(d);N_PINS(D)::S(D)
- Refutation
- R(f);
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- P(e);::QAB1(F)
- Refutation
- R(f);CHECK,XS(D)
- Try
- Q(F);CHECK
- Vars
- B(c);P_SPINB(c)::QAB(F)
- Refutation
- R(f);N_PINS(D),XQ(F)
- Try
- Q(F);N_SPINS(D)
- Threat
- DUALS(3)
- Vars
- B(c);N_GUARD,XQ(F)::S(D)
- S(d);XQ(F)::S(D)
- Refutation
- R(f);P_PINS(D),XQ(F)
- Try
- Q(F);
- Threat
- DUALS(3)
- Vars
- P(e);::QAR1(F)
- S(d);N_PINS(D)::S(D)
- Refutation
- R(f);CHECK,XS(D)
- Try
- Actual
- B(H);
- Threat
- B(H)
- Vars
- R(f);CHECK,OGATE,XS(D)::QAR2(F),XR(f)
- B(a);OGATE,XP(C)::R1(A)
- R(f);N_GUARD,S_CUTB(c)::QAR(F)
- B(c);N_PINS(D)::S(D)
- S(d);N_PINS(D)::S(D)
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).