MESON Chess Problem Database
Problem Display
PID: 173071 (3R1B1b/8/4K3/2NN2pp/3k2p1/2pB2Q1/q7/3n4 w - - 0 1)
Barulin, Mikhail Mikhailovich
64 Shakhmatnoe obozrenie, 1928
#2
7 + 8
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qb3
- 2.Sxb3#
- 1...Qxd5+
- 2.Rxd5#
- 1...Qa1
- 2.Sb3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qb2
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qc2
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qd2
- 2.Sb3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qe2+
- 2.Se3#
- 1...Qf2
- 2.Sb3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qg2
- 2.Sb3#
- 1...Qh2
- 2.Sb3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qa3
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qa5
- 2.Sb3#
- 2.Sb6#
- 2.Sc7#
- 1...Qa6+
- 2.Sb6#
- 1...Qa7
- 2.Sb3#
- 2.Sc7#
- 1...Qa8
- 2.Sb3#
- 1...Be5
- 2.Qxe5#
- 1...Sb2
- 2.Qf2#
- 2.Qg1#
- 2.Qe3#
- 1...Sf2
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...h4
- 2.Qxg4#
- 1...Qb1
- Tries
- 1.Kf5?
- threat
- 2.Se6#
- 1...Qf2+
- 2.Sf4#
- 1...Se3+
- 2.Qxe3#
- 1...Qe2
- 2.Sb3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qa6
- 2.Sb3#
- 2.Sb6#
- 1...Qxd5+!
- threat
- 1.Bf1?
- threat
- 2.Qd3#
- 1...Qxd5+
- 2.Rxd5#
- 1...Qe2+
- 2.Se3#
- 1...Qa6+
- 2.Sb6#
- 1...Qb1
- 2.Sxc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qc2
- 2.Sxc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qd2
- 2.Sxc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Sb2
- 2.Qf2#
- 2.Qg1#
- 2.Qxc3#
- 2.Qe3#
- 1...Sf2
- 2.Qxc3#
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Qc4!
- threat
- 1.Be2?
- threat
- 2.Qd3#
- 1...Qxd5+
- 2.Rxd5#
- 1...Qxe2+
- 2.Se3#
- 1...Qa6+
- 2.Sb6#
- 1...Qb1
- 2.Sxc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qc2
- 2.Sxc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qd2
- 2.Sxc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Sb2
- 2.Qf2#
- 2.Qg1#
- 2.Qxc3#
- 2.Qe3#
- 1...Sf2
- 2.Qxf2#
- 2.Qxc3#
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Qc4!
- threat
- 1.Bc4?
- threat
- 2.Se3#
- 2.Sb6#
- 2.Qd3#
- 1...Qe2+
- 2.Se3#
- 1...Qa6+
- 2.Sb6#
- 1...Kxc4
- 2.Qd3#
- 1...Qb1
- 2.Se3#
- 2.Sb6#
- 1...Qc2
- 2.Se3#
- 2.Sb6#
- 1...Qd2
- 2.Se3#
- 2.Sb6#
- 1...Qg2
- 2.Qd3#
- 1...Qa4
- 2.Qd3#
- 1...Qa5
- 2.Sb6#
- 2.Qd3#
- 1...Qa7
- 2.Qd3#
- 1...Qa8
- 2.Qd3#
- 1...Be5
- 2.Qd3#
- 1...Bf6
- 2.Qd3#
- 1...Sb2
- 2.Se3#
- 2.Sb6#
- 2.Qxc3#
- 1...Sf2
- 2.Se3#
- 2.Sb6#
- 2.Qxc3#
- 1...Se3
- 2.Sxe3#
- 1...c2
- 2.Sb6#
- 2.Qd3#
- 1...Qxc4!
- threat
- 1.Bb5?
- threat
- 2.Qd3#
- 1...Qxd5+
- 2.Rxd5#
- 1...Qe2+
- 2.Se3#
- 1...Qa6+
- 2.Sb6#
- 1...Qb1
- 2.Sxc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qc2
- 2.Sxc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qd2
- 2.Sxc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Sb2
- 2.Qf2#
- 2.Qg1#
- 2.Qxc3#
- 2.Qe3#
- 1...Sf2
- 2.Qxc3#
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Qc4!
- threat
- 1.Ba6?
- threat
- 2.Qd3#
- 1...Qxd5+
- 2.Rxd5#
- 1...Qe2+
- 2.Se3#
- 1...Qxa6+
- 2.Sb6#
- 1...Qb1
- 2.Sxc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qc2
- 2.Sxc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qd2
- 2.Sxc3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Sb2
- 2.Qf2#
- 2.Qg1#
- 2.Qxc3#
- 2.Qe3#
- 1...Sf2
- 2.Qxc3#
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Qc4!
- threat
- 1.Bg7+?
- 1...Kxc5
- 2.Rc8#
- 2.Qd6#
- 2.Qc7#
- 1...Bxg7!
- 1...Kxc5
- 1.Qf3?
- threat
- 2.Qe4#
- 1...Qxd5+
- 2.Rxd5#
- 1...Qe2+
- 2.Se3#
- 1...Qa6+
- 2.Sb6#
- 1...Qg2
- 2.Sb3#
- 2.Se3#
- 2.Sb4#
- 2.Sf4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Sf2
- 2.Qe3#
- 1...gxf3!
- threat
- 1.Kf5?
- Keys
- 1.Kf7!
- threat
- 2.Se6#
- 1...Qf2+
- 2.Sf6#
- 1...Qa7+
- 2.Sc7#
- 1...Qe2
- 2.Sb3#
- 2.Se3#
- 2.Sb4#
- 2.Sb6#
- 2.Sf6#
- 2.Sc7#
- 1...Qa6
- 2.Sb3#
- 2.Sb6#
- 1...Se3
- 2.Qxe3#
- threat
- 1.Kf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- Q(b);N_GUARD::S(C),XQ(b)
- Q(b);CHECK,OGATE,P_SPINQ(b),XS(D)::R1(F),XQ(b)
- Q(b);CHECK,N_PINS(D)::R(F)+S(D)
- Q(b);N_GUARD,N_PINS(D)::S(C)
- B(h);N_GUARD::QAB1(B),XB(h)
- S(a);N_GUARD::QAB1(B)
- S(a);N_GUARD::QAB1(B),XS(a)
- P(g);N_GUARD::QAR(B),XP(e)
- Tries
- Try
- K(E);N_SPINS(D),S_FLIGHT
- Threat
- S(C)
- Vars
- Q(b);CHECK,N_GUARD::R(F)+S(D)
- S(a);CHECK,N_GUARD::QAB1(B),XS(a)
- Refutation
- Q(b);CHECK,P_SPINQ(b),XS(D)
- Try
- B(A);
- Threat
- QAR1(B)
- Vars
- Q(b);CHECK,OGATE,P_SPINQ(b),XS(D)::R1(F),XQ(b)
- Q(b);CHECK,N_PINS(D)::R(F)+S(D)
- S(a);N_GUARD::QAB1(B),XS(a)
- Refutation
- Q(b);
- Try
- B(A);
- Threat
- QAR1(B)
- Vars
- Q(b);CHECK,OGATE,P_SPINQ(b),XS(D)::R1(F),XQ(b)
- Q(b);CHECK,N_PINS(D),XB(A)::R(F)+S(D)
- Q(b);CHECK,N_PINS(D)::R(F)+S(D)
- S(a);N_GUARD::QAB1(B),XS(a)
- Refutation
- Q(b);
- Try
- B(A);N_SPINS(D)
- Threat
- DUALS(3)
- Vars
- Q(b);CHECK::R(F)+S(D)
- K(d);P-FLIGHT,XB(A)::QAB1(B)
- Q(b);::QAR1(B)
- B(h);::QAR1(B)
- S(a);::R(F)+S(D),XS(a)
- Refutation
- Q(b);P_PINS(D),XB(A)
- Try
- B(A);
- Threat
- QAR1(B)
- Vars
- Q(b);CHECK,OGATE,P_SPINQ(b),XS(D)::R1(F),XQ(b)
- Q(b);CHECK,N_PINS(D)::R(F)+S(D)
- S(a);N_GUARD::QAB1(B),XS(a)
- Refutation
- Q(b);
- Try
- B(A);
- Threat
- QAR1(B)
- Vars
- Q(b);CHECK,OGATE,P_SPINQ(b),XS(D)::R1(F),XQ(b)
- Q(b);CHECK,N_PINS(D)::R(F)+S(D)
- Q(b);CHECK,N_PINS(D),XB(A)::R(F)+S(D)
- S(a);N_GUARD::QAB1(B),XS(a)
- Refutation
- Q(b);
- Try
- B(G);CHECK
- Refutation
- B(h);XB(G)
- Try
- Q(B);
- Threat
- QAR1(B)
- Vars
- Q(b);CHECK,OGATE,P_SPINQ(b),XS(D)::R1(F),XQ(b)
- Q(b);CHECK,N_PINS(D)::R(F)+S(D)
- S(a);N_GUARD::QAB1(B)
- Refutation
- P(e);XQ(B)
- Try
- Actual
- K(E);S_FLIGHT
- Threat
- S(C)
- Vars
- Q(b);CHECK,N_PINS(D)::R(F)+S(D)
- S(a);N_GUARD::QAB1(B),XS(a)
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).