MESON Chess Problem Database
Problem Display
PID: 179444 (6N1/3p1Bpb/3N2Q1/1pP1k3/R3n3/2P3P1/2K1nB1r/4R2q w - - 0 1)
Adabashev, Mark Ivanovich
64 Shakhmatnoe obozrenie, 1938
#2
11 + 9
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qxe1
- 2.Rxe4#
- 1...Qf1
- 2.Rxe4#
- 1...Qg1
- 2.Rxe4#
- 1...Rg2
- 2.Rxe4#
- 1...Bxg8
- 2.Qf5#
- 1...Sc1
- 2.Qxg7#
- 1...Sg1
- 2.Qxg7#
- 1...S2xc3
- 2.Qxg7#
- 1...S2xg3
- 2.Qxg3#
- 1...Sd4+
- 2.cxd4#
- 1...Sf4
- 2.Qxg7#
- 1...Sd2
- 2.Bd4#
- 1...S4xc3
- 2.Bd4#
- 1...S4xg3
- 2.Bxg3#
- 1...Sxc5
- 2.Bd4#
- 1...Sg5
- 2.Bd4#
- 1...Sxd6
- 2.Bd4#
- 1...Sf6
- 2.Bd4#
- 1...bxa4
- 2.Sc4#
- 1...b4
- 2.Sc4#
- 1...Qxe1
- Tries
- 1.Ba2?
- threat
- 2.Sf7#
- 2.Qe8#
- 1...Sd4+
- 2.cxd4#
- 1...Rxf2
- 2.Qe8#
- 1...Bxg8
- 2.Qf5#
- 1...S2xg3
- 2.Qxg3#
- 1...Sxf2
- 2.Sf7#
- 1...S4xc3
- 2.Sf7#
- 2.Bd4#
- 1...S4xg3
- 2.Sf7#
- 2.Bxg3#
- 1...Sxc5
- 2.Sf7#
- 2.Bd4#
- 1...Sxd6
- 2.Bd4#
- 1...Qf3
- 2.Qe8#
- 1...Rh6
- 2.Sf7#
- 1...Sf4
- 2.Sf7#
- 2.Qxg7#
- 1...Sd2
- 2.Sf7#
- 2.Bd4#
- 1...Sg5
- 2.Bd4#
- 1...Sf6
- 2.Sf7#
- 2.Bd4#
- 1...Bxg6!
- threat
- 1.Bb3?
- threat
- 2.Sf7#
- 2.Qe8#
- 1...Sd4+
- 2.cxd4#
- 1...Rxf2
- 2.Qe8#
- 1...Bxg8
- 2.Qf5#
- 1...S2xg3
- 2.Qxg3#
- 1...Sxf2
- 2.Sf7#
- 1...S4xc3
- 2.Sf7#
- 2.Bd4#
- 1...S4xg3
- 2.Sf7#
- 2.Bxg3#
- 1...Sxc5
- 2.Sf7#
- 2.Bd4#
- 1...Sxd6
- 2.Bd4#
- 1...Qf3
- 2.Qe8#
- 1...Rh6
- 2.Sf7#
- 1...Sf4
- 2.Sf7#
- 2.Qxg7#
- 1...Sd2
- 2.Sf7#
- 2.Bd4#
- 1...Sg5
- 2.Bd4#
- 1...Sf6
- 2.Sf7#
- 2.Bd4#
- 1...Bxg6!
- threat
- 1.Qg5+?
- 1...Bf5
- 2.Qxf5#
- 1...Sxg5+!
- 1...Bf5
- 1.Ba2?
- Keys
- 1.Ra8!
- threat
- 2.Re8#
- 1...Sd4+
- 2.cxd4#
- 1...S2xg3
- 2.Qxg3#
- 1...S4xg3
- 2.Bxg3#
- 1...Sxc5
- 2.Bd4#
- 1...Sxd6
- 2.Bd4#
- 1...Sf4
- 2.Qxg7#
- 1...Sg5
- 2.Bd4#
- 1...Sf6
- 2.Bd4#
- threat
- 1.Ra8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 12
- Sets
- Q(a);N_GUARD,XR(A)::R1(F),XS(d)
- Q(a);N_GUARD::R1(F),XS(d)
- R(c);S_CUTQ(a)::R1(F),XS(d)
- B(i);N_GUARD,XS(K)::QAR1(I)
- S(b);P_PINB(C),P_SPINS(d)::QAB(I),XP(h)
- S(b);P_PINB(C),P_SPINS(d),XP(D)::QAB(I),XP(h)
- S(b);OGATE,P_PINB(C),P_SPINS(d),XP(E)::QAB(I),XS(b)
- S(b);CHECK,OGATE,P_PINB(C),P_SPINS(d)::P(D),XS(b)
- S(d);P_PINQ(I),P_SPINS(b)::B(C)
- S(d);P_PINQ(I),P_SPINS(b),XP(D)::B(C)
- S(d);OGATE,P_PINQ(I),P_SPINS(b),XP(E)::B(C),XS(d)
- S(d);P_PINQ(I),P_SPINS(b),XP(G)::B(C)
- S(d);P_PINQ(I),P_SPINS(b),XS(H)::B(C)
- P(e);N_GUARD,XR(F)::S(H)
- P(e);N_GUARD::S(H)
- Tries
- Try
- B(J);
- Threat
- DUALS(2)
- Vars
- S(b);CHECK,OGATE,P_PINB(C),P_SPINS(d)::P(D),XS(b)
- R(c);XB(C)::QAR(I)
- B(i);N_GUARD,XS(K)::QAR1(I)
- S(b);OGATE,P_PINB(C),P_SPINS(d),XP(E)::QAB(I),XS(b)
- S(d);P_PINQ(I),P_SPINS(b),XB(C)::S(H)
- S(d);P_PINQ(I),P_SPINS(b),XS(H)::B(C)
- Q(a);::QAR(I)
- R(c);::S(H)
- S(d);P_PINQ(I),P_SPINS(b)::B(C)
- Refutation
- B(i);XQ(I)
- Try
- B(J);
- Threat
- DUALS(2)
- Vars
- S(b);CHECK,OGATE,P_PINB(C),P_SPINS(d)::P(D),XS(b)
- R(c);XB(C)::QAR(I)
- B(i);N_GUARD,XS(K)::QAR1(I)
- S(b);OGATE,P_PINB(C),P_SPINS(d),XP(E)::QAB(I),XS(b)
- S(d);P_PINQ(I),P_SPINS(b),XB(C)::S(H)
- S(d);P_PINQ(I),P_SPINS(b),XS(H)::B(C)
- Q(a);::QAR(I)
- R(c);::S(H)
- S(d);P_PINQ(I),P_SPINS(b)::B(C)
- Refutation
- B(i);XQ(I)
- Try
- Q(I);CHECK
- Vars
- B(i);N_GUARD,P_SPINB(i)::QAR1(I),XB(i)
- Refutation
- S(d);CHECK,P_SPINS(b),XQ(I)
- Try
- Actual
- R(F);
- Threat
- R(F)
- Vars
- S(b);CHECK,OGATE,P_PINB(C),P_SPINS(d)::P(D),XS(b)
- S(b);OGATE,P_PINB(C),P_SPINS(d),XP(E)::QAB(I),XS(b)
- S(d);OGATE,P_PINQ(I),P_SPINS(b),XP(E)::B(C),XS(d)
- S(d);P_PINQ(I),P_SPINS(b),XP(G)::B(C)
- S(d);P_PINQ(I),P_SPINS(b),XS(H)::B(C)
- S(b);P_PINB(C),P_SPINS(d)::QAB(I),XP(h)
- S(d);P_PINQ(I),P_SPINS(b)::B(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).