MESON Chess Problem Database
Problem Display
PID: 124591 (3nR3/1n6/pK1k1N2/1P3B1r/3NpP2/r6p/7Q/1b1R4 w - - 0 1)
Shedey, Sergey Oleksandrovich
Sutaz Druzstiev CCCP, 1976
#2
9 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sc2#
- 1...Ra2
- 2.Sc2#
- 1...Ra5
- 2.Sc2#
- 1...Rxf5
- 2.Sxf5#
- 1...Ba2
- 2.Sb3#
- 1...Sc6
- 2.Re6#
- 1...Se6
- 2.Rxe6#
- 1...Sf7
- 2.Re6#
- 1...axb5
- 2.Sxb5#
- 1...Ra1
- Tries
- 1.Bxh3?
- threat
- 2.Sf5#
- 1...Rxb5+
- 2.Sxb5#
- 1...Rf5
- 2.Sxf5#
- 1...Bd3
- 2.f5#
- 1...Rd3!
- threat
- 1.Bxe4?
- threat
- 2.Sf5#
- 1...Rxb5+
- 2.Sxb5#
- 1...Rf5
- 2.Sxf5#
- 1...Bd3
- 2.f5#
- 1...Rd3!
- threat
- 1.Bg4?
- threat
- 2.Sf5#
- 1...Rxb5+
- 2.Sxb5#
- 1...Rf5
- 2.Sxf5#
- 1...Bd3
- 2.f5#
- 1...Rd3!
- threat
- 1.Bg6?
- threat
- 2.Sf5#
- 1...Rxb5+
- 2.Sxb5#
- 1...Rf5
- 2.Sxf5#
- 1...Bd3
- 2.f5#
- 1...Rd3!
- threat
- 1.Bd7?
- threat
- 2.Sf5#
- 1...Rxb5+
- 2.Sxb5#
- 1...Rf5
- 2.Sxf5#
- 1...Bd3
- 2.f5#
- 1...Rd3!
- threat
- 1.Bh7?
- threat
- 2.Sf5#
- 1...Rxb5+
- 2.Sxb5#
- 1...Rf5
- 2.Sxf5#
- 1...Bd3
- 2.f5#
- 1...Rd3!
- threat
- 1.Bc8?
- threat
- 2.Sf5#
- 1...Rxb5+
- 2.Sxb5#
- 1...Rf5
- 2.Sxf5#
- 1...Bd3
- 2.f5#
- 1...Rd3!
- threat
- 1.Re5?
- threat
- 2.Se8#
- 1...Rxf5
- 2.Sxf5#
- 1...Se6
- 2.Rxe6#
- 1...Rh8!
- threat
- 1.Qa2?
- threat
- 2.Qd5#
- 1...Rxa2
- 2.Sc2#
- 1...Rxf5
- 2.Sxf5#
- 1...Bxa2
- 2.Sb3#
- 1...Rb3!
- threat
- 1.Bxh3?
- Keys
- 1.Be6!
- threat
- 2.Sf5#
- 1...Rxb5+
- 2.Sxb5#
- 1...Rd3
- 2.Sxe4#
- 1...Rf5
- 2.Sxf5#
- 1...Bd3
- 2.f5#
- threat
- 1.Be6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 8
- Sets
- R(b);N_GUARD::R(A)+S(C)
- R(e);XB(F)::R(A)+S(C),DCHECK,XR(e)
- B(a);N_GUARD::R(A)+S(C)
- S(i);N_GUARD::R1(I)
- S(i);N_GUARD::R1(I),XS(i)
- P(f);XP(E)::R(A)+S(C),DCHECK,XP(f)
- Tries
- Try
- B(F);XP(c)
- Threat
- R(A)+S(C),DCHECK
- Vars
- R(e);CHECK,XP(E)::R(A)+S(C),DCHECK,XR(e)
- R(e);::R(A)+S(C),DCHECK,XR(e)
- B(a);S_CUTR(b)::QAB(B)+P(D)
- Refutation
- R(b);
- Try
- B(F);XP(d)
- Threat
- R(A)+S(C),DCHECK
- Vars
- R(e);CHECK,XP(E)::R(A)+S(C),DCHECK,XR(e)
- R(e);::R(A)+S(C),DCHECK,XR(e)
- B(a);S_CUTR(b)::QAB(B)+P(D)
- Refutation
- R(b);
- Try
- B(F);
- Threat
- R(A)+S(C),DCHECK
- Vars
- R(e);CHECK,XP(E)::R(A)+S(C),DCHECK,XR(e)
- R(e);::R(A)+S(C),DCHECK,XR(e)
- B(a);S_CUTR(b)::QAB(B)+P(D)
- Refutation
- R(b);
- Try
- B(F);
- Threat
- R(A)+S(C),DCHECK
- Vars
- R(e);CHECK,XP(E)::R(A)+S(C),DCHECK,XR(e)
- R(e);::R(A)+S(C),DCHECK,XR(e)
- B(a);S_CUTR(b)::QAB(B)+P(D)
- Refutation
- R(b);
- Try
- B(F);
- Threat
- R(A)+S(C),DCHECK
- Vars
- R(e);CHECK,XP(E)::R(A)+S(C),DCHECK,XR(e)
- R(e);::R(A)+S(C),DCHECK,XR(e)
- B(a);S_CUTR(b)::QAB(B)+P(D)
- Refutation
- R(b);
- Try
- B(F);
- Threat
- R(A)+S(C),DCHECK
- Vars
- R(e);CHECK,XP(E)::R(A)+S(C),DCHECK,XR(e)
- R(e);::R(A)+S(C),DCHECK,XR(e)
- B(a);S_CUTR(b)::QAB(B)+P(D)
- Refutation
- R(b);
- Try
- B(F);
- Threat
- R(A)+S(C),DCHECK
- Vars
- R(e);CHECK,XP(E)::R(A)+S(C),DCHECK,XR(e)
- R(e);::R(A)+S(C),DCHECK,XR(e)
- B(a);S_CUTR(b)::QAB(B)+P(D)
- Refutation
- R(b);
- Try
- R(I);
- Threat
- S(H)
- Vars
- R(e);XB(F)::R(A)+S(C),DCHECK,XR(e)
- S(i);N_GUARD::R1(I),XS(i)
- Refutation
- R(e);
- Try
- Q(B);
- Threat
- QAR1(B)
- Vars
- R(b);N_GUARD,XQ(B)::R(A)+S(C)
- R(e);XB(F)::R(A)+S(C),DCHECK,XR(e)
- B(a);N_GUARD,XQ(B)::R(A)+S(C)
- Refutation
- R(b);P_PINP(E)
- Try
- Actual
- B(F);
- Threat
- R(A)+S(C),DCHECK
- Vars
- R(e);CHECK,XP(E)::R(A)+S(C),DCHECK,XR(e)
- R(b);S_CUTB(a)::S(H),XP(d)
- R(e);::R(A)+S(C),DCHECK,XR(e)
- B(a);S_CUTR(b)::QAB(B)+P(D)
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).