MESON Chess Problem Database
Problem Display
PID: 263196 (8/1n2K1p1/2p1P3/Pr1k2r1/1p1B1Q2/8/4Bp2/3n4 w - - 0 1)
Nagovitsin, Eduard Nikolaevich
SuperProblem, 2022
#2
6 + 9
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Qe5#
- 1...Rg2
- 2.Qe5#
- 1...Rg3
- 2.Qe5#
- 1...Rg4
- 2.Qe5#
- 1...Re5
- 2.Qxe5#
- 1...Rg6
- 2.Qe5#
- 1...Rg1
- Tries
- 1.Bd3?
- threat
- 2.Qe4#
- 1...Rg4
- 2.Qe5#
- 1...Re5
- 2.Qxe5#
- 1...Sc5
- 2.Qd6#
- 1...Sd6
- 2.Qxd6#
- 1...Sc3!
- threat
- 1.Be3?
- threat
- 2.Bf3#
- 2.Bc4#
- 2.Qd4#
- 1...Sxa5
- 2.Bf3#
- 2.Qd4#
- 1...c5
- 2.Bf3#
- 1...f1Q
- 2.Qd4#
- 1...f1B
- 2.Bf3#
- 2.Qd4#
- 1...f1R
- 2.Bc4#
- 2.Qd4#
- 1...Sc3
- 2.Bc4#
- 2.Qd4#
- 1...Rc5
- 2.Bf3#
- 2.Qd4#
- 1...Rg3
- 2.Bc4#
- 2.Qd4#
- 2.Qf5#
- 1...Rg4
- 2.Bf3#
- 2.Bc4#
- 2.Qf5#
- 1...Re5
- 2.Bc4#
- 2.Qc4#
- 2.Qd4#
- 1...Sb2
- 2.Bf3#
- 2.Qd4#
- 1...Sc5
- 2.Bc4#
- 2.Qd4#
- 1...Sd6
- 2.Qd4#
- 1...Sxe3!
- threat
- 1.Be5?
- threat
- 2.Qd4#
- 1...Kc5
- 2.Qc4#
- 2.Qd4#
- 1...Rxe5
- 2.Qc4#
- 1...c5
- 2.Bf3#
- 1...Rg4!
- threat
- 1.Bb6?
- threat
- 2.Bf3#
- 2.Bc4#
- 2.Qd4#
- 1...Sxa5
- 2.Bf3#
- 2.Qd4#
- 1...c5
- 2.Bf3#
- 1...f1Q
- 2.Qd4#
- 1...f1B
- 2.Bf3#
- 2.Qd4#
- 1...f1R
- 2.Bc4#
- 2.Qd4#
- 1...Sc3
- 2.Bc4#
- 2.Qd4#
- 1...Rc5
- 2.Bf3#
- 1...Rg3
- 2.Bc4#
- 2.Qd4#
- 2.Qf5#
- 1...Rg4
- 2.Bf3#
- 2.Bc4#
- 2.Qf5#
- 1...Re5
- 2.Bc4#
- 2.Qc4#
- 2.Qd4#
- 1...Sb2
- 2.Bf3#
- 2.Qd4#
- 1...Se3
- 2.Bf3#
- 2.Qd4#
- 1...Sc5
- 2.Bc4#
- 1...Sd6
- 2.Qd4#
- 1...Rxb6!
- threat
- 1.Bf6?
- threat
- 2.Qc4#
- 2.Qd4#
- 1...Kc5
- 2.Qxg5#
- 2.Qc4#
- 2.Qd4#
- 1...Sxa5
- 2.Qd4#
- 1...Rc5
- 2.Bf3#
- 2.Qf3#
- 2.Qd4#
- 1...Rg4
- 2.Qe5#
- 2.Qf5#
- 1...Re5
- 2.Qxe5#
- 2.Qc4#
- 1...Sb2
- 2.Qd4#
- 1...Se3
- 2.Qd4#
- 1...Sd6
- 2.Qd4#
- 1...c5
- 2.Bf3#
- 2.Qf3#
- 1...gxf6!
- threat
- 1.Ba7?
- threat
- 2.Bf3#
- 2.Bc4#
- 2.Qd4#
- 1...Sxa5
- 2.Bf3#
- 2.Qd4#
- 1...c5
- 2.Bf3#
- 1...f1Q
- 2.Qd4#
- 1...f1B
- 2.Bf3#
- 2.Qd4#
- 1...f1R
- 2.Bc4#
- 2.Qd4#
- 1...Sc3
- 2.Bc4#
- 2.Qd4#
- 1...Rc5
- 2.Bf3#
- 1...Rg3
- 2.Bc4#
- 2.Qd4#
- 2.Qf5#
- 1...Rg4
- 2.Bf3#
- 2.Bc4#
- 2.Qf5#
- 1...Re5
- 2.Bc4#
- 2.Qc4#
- 2.Qd4#
- 1...Sb2
- 2.Bf3#
- 2.Qd4#
- 1...Se3
- 2.Bf3#
- 2.Qd4#
- 1...Sc5
- 2.Bc4#
- 1...Sd6
- 2.Qd4#
- 1...Rb6!
- threat
- 1.Bxg7?
- threat
- 2.Qc4#
- 2.Qd4#
- 1...Kc5
- 2.Qxg5#
- 2.Qc4#
- 2.Qd4#
- 1...Sxa5
- 2.Qd4#
- 1...Rc5
- 2.Bf3#
- 2.Qf3#
- 2.Qd4#
- 1...Rg4
- 2.Qe5#
- 2.Qf5#
- 1...Re5
- 2.Qxe5#
- 2.Qc4#
- 1...Sb2
- 2.Qd4#
- 1...Se3
- 2.Qd4#
- 1...Sd6
- 2.Qd4#
- 1...c5
- 2.Bf3#
- 2.Qf3#
- 1...Rxg7+!
- threat
- 1.Bd3?
- Keys
- 1.Bc5!
- threat
- 2.Qd4#
- 1...Kxc5
- 2.Qc4#
- 1...Rxc5
- 2.Bf3#
- 1...Sxc5
- 2.Bc4#
- 1...Rg4
- 2.Qf5#
- threat
- 1.Bc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 5
- Sets
- R(f);N_GUARD::QAR1(C)
- R(f);N_GUARD,P_PINP(E)::QAR1(C),XR(f)
- Tries
- Try
- B(A);
- Threat
- QAB1(C)
- Vars
- R(f);N_GUARD::QAR1(C)
- R(f);N_GUARD,P_PINP(E)::QAR1(C),XR(f)
- S(h);N_GUARD::QAR1(C)
- S(h);N_GUARD::QAR1(C),XS(h)
- Refutation
- S(a);
- Try
- B(B);
- Threat
- DUALS(3)
- Vars
- P(g);::B(A)
- P(b);::QAR1(C)
- S(h);::QAR1(C)
- Refutation
- S(a);XB(B)
- Try
- B(B);
- Threat
- QAR1(C)
- Vars
- R(f);P_PINP(E),SBLOCK,XB(B)::QAB1(C)
- P(g);SBLOCK::B(A)
- Refutation
- R(f);
- Try
- B(B);
- Threat
- DUALS(3)
- Vars
- P(g);::B(A)
- P(b);::QAR1(C)
- R(d);::B(A)
- S(h);::B(A)
- S(h);::QAR1(C)
- Refutation
- R(d);XB(B)
- Try
- B(B);
- Threat
- DUALS(2)
- Vars
- S(h);XP(D)::QAR1(C)
- S(a);::QAR1(C)
- S(h);::QAR1(C)
- Refutation
- P(i);XB(B)
- Try
- B(B);
- Threat
- DUALS(3)
- Vars
- P(g);::B(A)
- P(b);::QAR1(C)
- R(d);::B(A)
- S(h);::B(A)
- S(h);::QAR1(C)
- Refutation
- R(d);
- Try
- B(B);XP(i)
- Threat
- DUALS(2)
- Vars
- S(h);XP(D)::QAR1(C)
- S(a);::QAR1(C)
- S(h);::QAR1(C)
- Refutation
- R(f);CHECK,XB(B)
- Try
- Actual
- B(B);
- Threat
- QAR1(C)
- Vars
- K(e);N_GUARD,P-FLIGHT,XB(B)::QAR1(C)
- R(d);SBLOCK,XB(B)::B(A)
- S(h);SBLOCK,XB(B)::B(A)
- R(f);N_GUARD::QAR2(C)
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).