MESON Chess Problem Database
Problem Display
PID: 234342 (4r1b1/1PP1p1N1/pK6/pP1N3R/3k3P/3P3r/1b1Q1p1B/8 w - - 0 1)
Mosiashvili, Givi
Phenix, 2020
#2
11 + 9
SOLUTION
- SOUND
- Sets
- 1...Rxh2
- 2.Qe3#
- 1...Rxd3
- 2.Qf4#
- 1...Re3
- 2.Qxe3#
- 1...Rxh4
- 2.Qe3#
- 1...Bc1
- 2.Qc3#
- 1...Ba3
- 2.Qc3#
- 1...Bc3
- 2.Qxc3#
- 1...Bxd5
- 2.Sf5#
- 2.Be5#
- 1...Be6
- 2.Sxe6#
- 1...Bh7
- 2.Se6#
- 1...Rxh2
- Tries
- 1.Kc6?
- threat
- 2.Sf5#
- 2.Be5#
- 1...Bxd5+
- 2.Rxd5#
- 1...Rxh2
- 2.Qe3#
- 1...Rxd3
- 2.Qf4#
- 1...f1Q
- 2.Be5#
- 1...f1R
- 2.Be5#
- 1...Re3
- 2.Sf5#
- 2.Qxe3#
- 1...Rf3
- 2.Be5#
- 1...Rf8
- 2.Be5#
- 1...Be6
- 2.Sxe6#
- 2.Be5#
- 1...Bh7
- 2.Se6#
- 2.Be5#
- 1...e5
- 2.Sf5#
- 1...e6
- 2.Be5#
- 1...Rg3!
- threat
- 1.Se3?
- threat
- 2.Sc2#
- 2.Sgf5#
- 2.Be5#
- 1...Rxh2
- 2.Sc2#
- 1...f1Q
- 2.Sc2#
- 2.Be5#
- 1...f1R
- 2.Sc2#
- 2.Be5#
- 1...Rf3
- 2.Sc2#
- 2.Be5#
- 1...Rg3
- 2.Sc2#
- 1...Rf8
- 2.Sc2#
- 2.Be5#
- 1...Bb3
- 2.Sgf5#
- 2.Be5#
- 1...Be6
- 2.Sc2#
- 2.Sxe6#
- 2.Be5#
- 1...Bh7
- 2.Sc2#
- 2.Se6#
- 2.Be5#
- 2.Rd5#
- 1...e5
- 2.Sgf5#
- 1...e6
- 2.Sc2#
- 2.Be5#
- 1...Rxe3!
- threat
- 1.Sb4?
- threat
- 2.Sc2#
- 2.Sc6#
- 2.Sf5#
- 2.Be5#
- 1...Rxh2
- 2.Sc2#
- 2.Sc6#
- 1...Rxd3
- 2.Qxd3#
- 1...f1Q
- 2.Sc2#
- 2.Sc6#
- 2.Be5#
- 1...f1R
- 2.Sc2#
- 2.Sc6#
- 2.Be5#
- 1...Re3
- 2.Sc2#
- 2.Sc6#
- 2.Sf5#
- 2.Qxb2#
- 1...Rf3
- 2.Sc2#
- 2.Sc6#
- 2.Be5#
- 1...Rg3
- 2.Sc2#
- 2.Sc6#
- 1...Rf8
- 2.Sc2#
- 2.Sc6#
- 2.Be5#
- 1...Bb3
- 2.Sc6#
- 2.Sf5#
- 2.Be5#
- 1...Bd5
- 2.Sc2#
- 2.Sf5#
- 2.Be5#
- 2.Rxd5#
- 1...Be6
- 2.Sc2#
- 2.Sc6#
- 2.Sxe6#
- 2.Be5#
- 1...Bh7
- 2.Sc2#
- 2.Sc6#
- 2.Se6#
- 2.Be5#
- 2.Rd5#
- 1...e5
- 2.Sf5#
- 1...e6
- 2.Sc2#
- 2.Sc6#
- 2.Be5#
- 1...axb4!
- threat
- 1.Qc2?
- threat
- 2.Qc4#
- 1...Rxd3
- 2.Qa4#
- 1...Bxd5
- 2.Sf5#
- 1...Bc3
- 2.Qxc3#
- 1...axb5!
- threat
- 1.Qxf2+?
- 1...Re3
- 2.Qxe3#
- 1...Kxd3!
- 1...Re3
- 1.c8Q?
- threat
- 2.Qg4#
- 2.Qc4#
- 2.Qc5#
- 1...Rxd3
- 2.Qf4#
- 2.Qg4#
- 1...Rxh4
- 2.Qe3#
- 2.Qc4#
- 2.Qc5#
- 1...Bxd5
- 2.Sf5#
- 2.Be5#
- 2.Qc5#
- 1...axb5
- 2.Qg4#
- 2.Qc5#
- 1...e5
- 2.Qc4#
- 2.Qc5#
- 1...f1Q
- 2.Qc4#
- 2.Qc5#
- 1...f1R
- 2.Qc4#
- 2.Qc5#
- 1...Re3
- 2.Qxe3#
- 2.Qc4#
- 2.Qc5#
- 1...Rf3
- 2.Qc4#
- 2.Qc5#
- 1...Rg3
- 2.Qc4#
- 2.Qc5#
- 1...Rf8
- 2.Qc4#
- 2.Qc5#
- 1...Ba3
- 2.Qdc3#
- 2.Qg4#
- 2.Qcc3#
- 2.Qc4#
- 1...Be6
- 2.Sxe6#
- 2.Qc4#
- 2.Qc5#
- 1...Bh7
- 2.Se6#
- 2.Qc4#
- 2.Qc5#
- 1...e6
- 2.Qc4#
- 2.Qc5#
- 1...Rxc8!
- threat
- 1.Kc6?
- Keys
- 1.Qe2!
- threat
- 2.Qe4#
- 1...Rxd3
- 2.Qg4#
- 1...Rxh4
- 2.Qe3#
- 1...Bxd5
- 2.Be5#
- 1...Re3
- 2.Qxe3#
- 1...Bh7
- 2.Se6#
- threat
- 1.Qe2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- R(c);N_GUARD,XB(B)::QAB1(A)
- R(c);P_SPINR(c),SBLOCK,XP(C)::QAR2(A)
- R(c);N_GUARD::QAB1(A),XR(c)
- R(c);N_GUARD,XP(D)::QAB1(A)
- B(a);N_GUARD::QAB1(A)
- B(a);N_GUARD::QAB1(A),XB(a)
- B(i);N_GUARD::S(K),XB(i)
- B(i);N_GUARD::S(K)
- Tries
- Try
- K(H);P-FLIGHT
- Threat
- DUALS(2)
- Vars
- B(i);CHECK,OGATE,XS(F)::R1(G),XB(i)
- R(c);N_GUARD,XB(B)::QAB1(A)
- R(c);P_SPINR(c),SBLOCK,XP(C)::QAR2(A)
- P(b);::B(B)
- R(c);::B(B)
- R(h);::B(B)
- P(g);::S(K)
- P(g);::B(B)
- Refutation
- R(c);
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- R(c);XB(B)::S(F)
- R(c);::S(F)
- P(g);::S(K)
- Refutation
- R(c);XS(F)
- Try
- S(F);
- Threat
- DUALS(4)
- Vars
- R(c);OGATE,P_SPINR(c),XP(C)::QAR1(A),XR(c)
- P(g);::S(K)
- Refutation
- P(e);XS(F)
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- R(c);SBLOCK,XP(C)::QAR(A)
- B(i);SBLOCK,XS(F)::S(K)
- B(a);N_GUARD::QAB1(A),XB(a)
- Refutation
- P(f);XP(E)
- Try
- Q(A);CHECK,XP(b)
- Vars
- R(c);N_GUARD,P_SPINR(c)::QAB1(A),XR(c)
- Refutation
- K(d);P-FLIGHT,XP(C)
- Try
- P(J);
- Threat
- DUALS(3)
- Refutation
- R(h);XQ(J)
- Try
- Actual
- Q(A);
- Threat
- QAR1(A)
- Vars
- R(c);SBLOCK,XP(C)::QAR(A)
- R(c);N_GUARD,XP(D)::QAB1(A)
- B(i);SBLOCK,XS(F)::B(B)
- R(c);N_GUARD::QAB1(A),XR(c)
- B(i);N_GUARD::S(K)
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).