MESON Chess Problem Database
Problem Display
PID: 213432 (5Nbn/1Kp3R1/3B4/pN1k3r/Rb4Q1/3r1p2/8/8 w - - 0 1)
Mosiashvili, Givi
Phenix, 2019
#2
7 + 9
SOLUTION
- SOUND
- Sets
- 1...Ra3
- 2.Qd4#
- 1...Rb3
- 2.Qd4#
- 1...Rc3
- 2.Qd4#
- 1...Re3
- 2.Qd4#
- 1...Rd4
- 2.Qxd4#
- 1...Rh1
- 2.Rg5#
- 1...Rh2
- 2.Rg5#
- 1...Rh3
- 2.Rg5#
- 1...Rh4
- 2.Rg5#
- 1...Rg5
- 2.Rxg5#
- 1...Rh6
- 2.Rg5#
- 1...Rh7
- 2.Rg5#
- 1...Be1
- 2.Qxh5#
- 2.Qc4#
- 2.Qe4#
- 1...Bd2
- 2.Qc4#
- 2.Qe4#
- 1...Ba3
- 2.Qxh5#
- 2.Qc4#
- 2.Qe4#
- 1...Bc3
- 2.Qc4#
- 2.Qe4#
- 1...Bc5
- 2.Qxh5#
- 2.Qc4#
- 2.Qe4#
- 1...Be6
- 2.Qxe6#
- 1...Bh7
- 2.Qe6#
- 1...Sf7
- 2.Qe6#
- 1...Ra3
- Tries
- 1.Rxb4?
- threat
- 2.Qxh5#
- 2.Qc4#
- 2.Qe4#
- 1...cxd6
- 2.Qxh5#
- 1...Rc3
- 2.Rd4#
- 2.Qxh5#
- 2.Qd4#
- 2.Qe4#
- 1...Re3
- 2.Rd4#
- 2.Qc4#
- 2.Qd4#
- 1...Rd4
- 2.Rxd4#
- 2.Qxd4#
- 1...Rh1
- 2.Rg5#
- 2.Qf5#
- 2.Qc4#
- 2.Qe4#
- 2.Qg5#
- 1...Rh2
- 2.Rg5#
- 2.Qf5#
- 2.Qc4#
- 2.Qe4#
- 2.Qg5#
- 1...Rh3
- 2.Rg5#
- 2.Qf5#
- 2.Qc4#
- 2.Qe4#
- 2.Qg5#
- 1...Rh4
- 2.Rg5#
- 2.Qf5#
- 2.Qg5#
- 1...Re5
- 2.Qc4#
- 1...Rf5
- 2.Qxf5#
- 2.Qc4#
- 2.Qe4#
- 1...Rg5
- 2.Rxg5#
- 2.Qc4#
- 2.Qe4#
- 2.Qxg5#
- 1...Rh6
- 2.Rg5#
- 2.Qf5#
- 2.Qc4#
- 2.Qe4#
- 2.Qg5#
- 1...Rh7
- 2.Rg5#
- 2.Qf5#
- 2.Qc4#
- 2.Qe4#
- 2.Qg5#
- 1...Be6
- 2.Qxe6#
- 2.Qc4#
- 2.Qe4#
- 1...Bf7
- 2.Qc4#
- 2.Qe4#
- 1...Bh7
- 2.Qe6#
- 2.Qc4#
- 1...Sg6
- 2.Qc4#
- 2.Qe4#
- 1...Sf7
- 2.Qe6#
- 2.Qc4#
- 2.Qe4#
- 1...axb4!
- threat
- 1.Rd7?
- threat
- 2.Sxc7#
- 1...Bxd6
- 2.Qxh5#
- 1...Rd4
- 2.Qxd4#
- 1...Rc3
- 2.Qd4#
- 1...c5
- 2.Sc7#
- 2.Bh2#
- 2.Bg3#
- 2.Bc7#
- 2.Bb8#
- 1...c6
- 2.Sc7#
- 1...cxd6!
- threat
- 1.Re7?
- threat
- 2.Qe4#
- 1...Bxd6
- 2.Qc4#
- 1...Rd4
- 2.Qxd4#
- 1...Re3
- 2.Qd4#
- 1...Rh4
- 2.Re5#
- 1...Re5
- 2.Rxe5#
- 1...Be6
- 2.Qxe6#
- 1...Bh7
- 2.Qe6#
- 1...cxd6!
- threat
- 1.Qxh5+?
- 1...Ke4
- 2.Qe5#
- 1...Kc4!
- 1...Ke4
- 1.Qxb4?
- threat
- 2.Sxc7#
- 2.Qc5#
- 2.Qc4#
- 2.Qe4#
- 1...cxd6
- 2.Qxd6#
- 1...Rd4
- 2.Sc3#
- 2.Qxd4#
- 1...Rc3
- 2.Sxc3#
- 2.Qd4#
- 2.Qe4#
- 1...Re3
- 2.Sxc7#
- 2.Qc5#
- 2.Qc4#
- 2.Qd4#
- 1...Rh4
- 2.Sxc7#
- 2.Rg5#
- 2.Qc5#
- 1...Re5
- 2.Sxc7#
- 2.Qc5#
- 2.Qc4#
- 1...Bh7
- 2.Sxc7#
- 2.Qc5#
- 2.Qc4#
- 1...c5
- 2.Qxc5#
- 2.Qc4#
- 2.Qe4#
- 1...c6
- 2.Sc7#
- 2.Qc5#
- 2.Qc4#
- 2.Qe4#
- 1...axb4!
- threat
- 1.Rxb4?
- Keys
- 1.Rxc7!
- threat
- 2.Qc4#
- 1...Bxd6
- 2.Qe4#
- 1...Rc3
- 2.Qd4#
- 1...Rd4
- 2.Qxd4#
- 1...Rh4
- 2.Qf5#
- threat
- 1.Rxc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 12
- Sets
- R(a);N_GUARD::QAR1(B)
- R(a);N_GUARD::QAR1(B),XR(a)
- R(f);N_GUARD::R(F)
- R(f);N_GUARD::R(F),XR(f)
- B(h);N_GUARD::QAB1(B),XB(h)
- B(h);N_GUARD::QAB1(B)
- S(i);S_CUTB(h)::QAB1(B)
- Tries
- Try
- R(A);XB(c)
- Threat
- DUALS(3)
- Vars
- P(g);XB(D)::QAR(B),XR(f)
- R(f);::QAB1(B)
- Refutation
- P(d);XR(A)
- Try
- R(F);
- Threat
- S(C),XP(g)
- Vars
- B(c);P_SPINB(c),XB(D)::QAR(B),XR(f)
- R(a);N_GUARD::QAR1(B),XR(a)
- R(a);N_GUARD::QAR1(B)
- P(g);::S(C)
- Refutation
- P(g);P_SPINP(g),XB(D)
- Try
- R(F);
- Threat
- QAB1(B)
- Vars
- B(c);XB(D)::QAB1(B)
- R(a);N_GUARD::QAR1(B),XR(a)
- R(a);N_GUARD::QAR1(B)
- R(f);N_GUARD::R1(F)
- R(f);N_GUARD::R1(F),XR(f)
- B(h);N_GUARD::QAB1(B),XB(h)
- B(h);N_GUARD::QAB1(B)
- Refutation
- P(g);XB(D)
- Try
- Q(B);CHECK,XR(f)
- Vars
- K(e);P_SPINB(c),S_FLIGHT::QAR1(B)
- Refutation
- K(e);P_SPINB(c),S_FLIGHT
- Try
- Q(B);XB(c)
- Threat
- DUALS(4)
- Vars
- P(g);OGATE,XB(D)::QAR1(B),XP(g)
- Refutation
- P(d);XQ(B)
- Try
- Actual
- R(F);XP(g)
- Threat
- QAB1(B)
- Vars
- B(c);XB(D)::QAB1(B)
- R(a);N_GUARD::QAR1(B)
- R(a);N_GUARD::QAR1(B),XR(a)
- R(f);N_GUARD::QAR2(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).