MESON Chess Problem Database
Problem Display
PID: 243821 (n7/8/2Pp4/8/k1B2NR1/1pB3P1/1Kb2P2/3Qr3 w - - 0 1)
Chepizhni, Viktor Ivanovich
Shakhmaty v SSSR, 1961
#2
9 + 6
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Re2
- 2.Qa1#
- 1...Re3
- 2.Qa1#
- 1...Re4
- 2.Qa1#
- 1...Re5
- 2.Qa1#
- 1...Re6
- 2.Qa1#
- 1...Re7
- 2.Qa1#
- 1...Re8
- 2.Qa1#
- 1...Bb1
- 2.Qxb3#
- 1...Bd3
- 2.Qxb3#
- 1...Be4
- 2.Qxb3#
- 1...Bf5
- 2.Qxb3#
- 1...Bg6
- 2.Qxb3#
- 1...Bh7
- 2.Qxb3#
- 1...Re2
- Tries
- 1.Bxe1?
- threat
- 2.Qa1#
- 1...Bb1
- 2.Qxb3#
- 1...Bxd1!
- threat
- 1.Bxb3+?
- 1...Bxb3
- 2.Qxb3#
- 1...Kb5!
- 1...Bxb3
- 1.Ba6?
- threat
- 2.Qd4#
- 1...Rxd1
- 2.Sd3#
- 1...Bxd1
- 2.Se2#
- 1...Re4
- 2.Qa1#
- 1...Bd3
- 2.Qxb3#
- 1...Sb6!
- threat
- 1.Rg5?
- threat
- 2.Bb5#
- 2.Ra5#
- 1...Re5
- 2.Qa1#
- 1...Bd3
- 2.Bxb3#
- 2.Ra5#
- 2.Qxb3#
- 1...Bf5
- 2.Qxb3#
- 1...Sc7
- 2.Ra5#
- 1...d5!
- threat
- 1.Rg7?
- threat
- 2.Ra7#
- 1...Re5
- 2.Qa1#
- 1...Re7
- 2.Qa1#
- 1...Sc7!
- threat
- 1.Qd5?
- threat
- 2.Bb5#
- 2.Qa5#
- 2.Qb5#
- 1...Re5
- 2.Bb5#
- 1...Bd3
- 2.Bxb3#
- 2.Qa5#
- 2.Qb5#
- 1...Sc7
- 2.Qa5#
- 1...Rb1+!
- threat
- 1.Qxd6?
- threat
- 2.Qa3#
- 2.Qb4#
- 1...Ra1
- 2.Qb4#
- 1...Rb1+!
- threat
- 1.Bxe1?
- Keys
- 1.Sd5!
- 1...Rxd1
- 2.Bd3#
- 1...Bxd1
- 2.Be2#
- 1...Sb6
- 2.Sxb6#
- 1...Rf1
- 2.Bd3#
- 1...Rg1
- 2.Bd3#
- 1...Rh1
- 2.Bd3#
- 1...Re2
- 2.Qa1#
- 1...Re3
- 2.Qa1#
- 1...Re4
- 2.Qa1#
- 1...Re5
- 2.Qa1#
- 1...Re6
- 2.Qa1#
- 1...Re7
- 2.Qa1#
- 1...Re8
- 2.Qa1#
- 1...Bb1
- 2.Qxb3#
- 1...Bd3
- 2.Qxb3#
- 1...Be4
- 2.Qxb3#
- 1...Bf5
- 2.Qxb3#
- 1...Bg6
- 2.Qxb3#
- 1...Bh7
- 2.Qxb3#
- 1...Sc7
- 2.Sb6#
- 1...Rxd1
- 1.Sd5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD::QAR(A)
- B(b);OGATE,P_SPINP(c)::QAB1(A),XP(c)
- Tries
- Try
- B(D);XR(a)
- Threat
- QAR(A)
- Vars
- B(b);OGATE,P_SPINP(c)::QAB1(A),XP(c)
- Refutation
- B(b);XQ(A)
- Try
- B(F);CHECK,XP(c)
- Vars
- B(b);OGATE,P_SPINB(b),XB(F)::QAB1(A),XB(b)
- Refutation
- K(d);S_FLIGHT
- Try
- B(F);
- Threat
- QAR(A)
- Vars
- R(a);N_GUARD,XQ(A)::R(H)+S(G)
- B(b);N_GUARD,XQ(A)::R(H)+S(G)
- R(a);N_GUARD::QAR(A)
- B(b);OGATE,P_SPINP(c)::QAB1(A),XP(c)
- Refutation
- S(f);
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- R(a);N_GUARD::QAR(A)
- B(b);OGATE,P_SPINP(c)::QAB1(A),XP(c)
- S(f);::R1(H)
- Refutation
- P(e);
- Try
- R(H);
- Threat
- R(H)
- Vars
- R(a);N_GUARD::QAR(A)
- Refutation
- S(f);
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- R(a);::B(F)
- S(f);::QAR1(A)
- Refutation
- R(a);CHECK
- Try
- Q(A);XP(e)
- Threat
- DUALS(2)
- Vars
- R(a);::QAR1(A)
- Refutation
- R(a);CHECK
- Try
- Actual
- S(G);
- Vars
- R(a);N_GUARD,XQ(A)::R(H)+B(F)
- B(b);N_GUARD,XQ(A)::R(H)+B(F)
- S(f);N_GUARD::S(G),XS(f)
- R(a);N_GUARD::R(H)+B(F)
- R(a);N_GUARD::QAR(A)
- B(b);OGATE,P_SPINP(c)::QAB1(A),XP(c)
- S(f);N_GUARD::S(G)
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).