MESON Chess Problem Database
Problem Display
PID: 242257 (K2B4/3b1BN1/2ppr3/4k3/5R2/b3p3/Q7/5R2 w - - 0 1)
Kisis, Imants J
Comm., Schach, 1980
#2
7 + 7
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rf6
- 2.Bxf6#
- 1...Be8
- 2.Qxe6#
- 1...Rf6
- Tries
- 1.Rg4?
- threat
- 2.Rf5#
- 1...d5
- 2.Qh2#
- 1...Rg6
- 2.Qh2#
- 1...Rf6
- 2.Bxf6#
- 1...Re7
- 2.Qh2#
- 1...Re8
- 2.Qh2#
- 1...Rh6!
- threat
- 1.Rh4?
- threat
- 2.Rf5#
- 1...d5
- 2.Qh2#
- 1...Rf6
- 2.Bxf6#
- 1...Rh6
- 2.Qh2#
- 1...Re7
- 2.Qh2#
- 1...Re8
- 2.Qh2#
- 1...Rg6!
- threat
- 1.Rf5+?
- 1...Ke4
- 2.Qc4#
- 1...Kd4!
- 1...Ke4
- 1.Qb1?
- threat
- 2.Qe4#
- 2.Qf5#
- 1...Kd5
- 2.Qf5#
- 1...Rg6
- 2.Re4#
- 2.Qe4#
- 1...Rf6
- 2.Bxf6#
- 2.Re4#
- 2.Qe4#
- 1...Rh6
- 2.Re4#
- 2.Qe4#
- 1...Re7
- 2.Re4#
- 2.Qe4#
- 1...Re8
- 2.Re4#
- 2.Qe4#
- 1...d5!
- threat
- 1.Qc4?
- threat
- 2.Re4#
- 2.Rf5#
- 2.Qd4#
- 2.Qe4#
- 1...Rg6
- 2.Re4#
- 2.Qc3#
- 2.Qd4#
- 2.Qe4#
- 1...Rf6
- 2.Bxf6#
- 2.Re4#
- 2.Qc3#
- 2.Qd4#
- 2.Qe4#
- 1...Rh6
- 2.Re4#
- 2.Qc3#
- 2.Qd4#
- 2.Qe4#
- 1...Re7
- 2.Re4#
- 2.Qc3#
- 2.Qd4#
- 2.Qe4#
- 1...Re8
- 2.Re4#
- 2.Qc3#
- 2.Qd4#
- 2.Qe4#
- 1...Bb2
- 2.Re4#
- 2.Rf5#
- 2.Qe4#
- 1...Bc5
- 2.Re4#
- 2.Rf5#
- 2.Qe4#
- 1...c5
- 2.Re4#
- 2.Rf5#
- 2.Qe4#
- 1...d5!
- threat
- 1.Qa1+?
- 1...Kd5
- 2.Qd4#
- 1...Bb2!
- 1...Kd5
- 1.Qb2+?
- 1...Kd5
- 2.Qd4#
- 1...Bxb2!
- 1...Kd5
- 1.Qc2?
- threat
- 2.Qe4#
- 2.Qf5#
- 1...Kd5
- 2.Qf5#
- 1...Rg6
- 2.Re4#
- 2.Qe4#
- 2.Qc3#
- 1...Rf6
- 2.Bxf6#
- 2.Re4#
- 2.Qe4#
- 2.Qc3#
- 1...Rh6
- 2.Re4#
- 2.Qe4#
- 2.Qc3#
- 1...Re7
- 2.Re4#
- 2.Qe4#
- 2.Qc3#
- 1...Re8
- 2.Re4#
- 2.Qe4#
- 2.Qc3#
- 1...d5!
- threat
- 1.Qe2?
- threat
- 2.Qh5#
- 1...Kd5
- 2.Qh5#
- 1...Rg6
- 2.Qxe3#
- 1...Rf6
- 2.Bxf6#
- 2.Qxe3#
- 1...Rh6
- 2.Qxe3#
- 1...Re7
- 2.Qxe3#
- 1...Re8
- 2.Qxe3#
- 1...d5!
- threat
- 1.Qg2?
- threat
- 2.Qe4#
- 2.Qg5#
- 1...Rg6
- 2.Re4#
- 2.Qe4#
- 1...Rf6
- 2.Bxf6#
- 2.Re4#
- 2.Qe4#
- 1...Rh6
- 2.Re4#
- 2.Qe4#
- 1...Re7
- 2.Re4#
- 2.Qe4#
- 1...Re8
- 2.Re4#
- 2.Qe4#
- 1...d5!
- threat
- 1.Rg4?
- Keys
- 1.Qh2!
- threat
- 2.Qh5#
- 1...Kd5
- 2.Qh5#
- 1...Rg6
- 2.Rg4#
- 1...Rf6
- 2.Bxf6#
- 1...Rh6
- 2.Rh4#
- 1...Re7
- 2.Ra4#
- 2.Rb4#
- 2.Rc4#
- 2.Rg4#
- 2.Rh4#
- 1...Re8
- 2.Ra4#
- 2.Rb4#
- 2.Rc4#
- 2.Rg4#
- 2.Rh4#
- 1...d5
- 2.Ra4#
- 2.Rb4#
- 2.Rc4#
- 2.Rg4#
- 2.Rh4#
- threat
- 1.Qh2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- R(f);N_GUARD::B(G),XR(f)
- B(g);N_GUARD::QAR1(B),XR(f)
- Tries
- Try
- R(C);
- Threat
- R1(A)
- Vars
- P(e);SBLOCK::QAB(B)
- R(f);::QAB(B)
- R(f);N_GUARD::B(G),XR(f)
- R(f);P_PINB(G)::QAB(B)
- Refutation
- R(f);
- Try
- R(C);
- Threat
- R1(A)
- Vars
- P(e);SBLOCK::QAB(B)
- R(f);N_GUARD::B(G),XR(f)
- R(f);::QAB(B)
- R(f);P_PINB(G)::QAB(B)
- Refutation
- R(f);
- Try
- R(C);CHECK
- Vars
- K(c);P-FLIGHT::QAR2(B)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- K(c);P-FLIGHT,P_SPINR(f)::QAR2(B)
- Refutation
- P(e);
- Try
- Q(B);
- Threat
- DUALS(4)
- Refutation
- P(e);
- Try
- Q(B);CHECK
- Vars
- K(c);P-FLIGHT,P_SPINR(f)::QAR1(B)
- Refutation
- B(a);P_SPINB(a)
- Try
- Q(B);CHECK
- Vars
- K(c);P-FLIGHT,P_SPINR(f)::QAR1(B)
- Refutation
- B(a);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- K(c);P-FLIGHT,P_SPINR(f)::QAR2(B)
- Refutation
- P(e);
- Try
- Q(B);P_PINP(b)
- Threat
- QAR(B)
- Vars
- K(c);N_SPINP(b),P-FLIGHT,P_SPINR(f)::QAR(B)
- R(f);::QAR2(B),XP(b)
- R(f);P_PINB(G)::QAR2(B),XP(b)
- Refutation
- P(e);
- Try
- Q(B);
- Threat
- DUALS(2)
- Refutation
- P(e);
- Try
- Actual
- Q(B);
- Threat
- QAR(B)
- Vars
- K(c);P-FLIGHT,P_SPINR(f)::QAR(B)
- R(f);::QAB(B)+R(C)
- R(f);N_GUARD::B(G),XR(f)
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).