MESON Chess Problem Database
Problem Display
PID: 136261 (8/3pp1N1/1Kp1p1BB/R2bN1b1/2pk4/4R3/n4Q2/4n3 w - - 0 1)
Bourd, Evgeny
Source?, 0000
#2
8 + 10
| 6490 | yacpdb | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Bh1
- 2.Rd3#
- 1...Bg2
- 2.Rd3#
- 1...Bf3
- 2.Rd3#
- 1...Be4
- 2.Rd3#
- 1...Bxe3
- 2.Qxe3#
- 1...Sc2
- 2.Qd2#
- 1...Sg2
- 2.Qd2#
- 1...Sc3
- 2.Re4#
- 1...c3
- 2.Re4#
- 1...Bh1
- Tries
- 1.Sf3+?
- 1...Bxf3
- 2.Rd3#
- 1...Sxf3!
- 1...Bxf3
- 1.Sxc6+?
- 1...Bxc6
- 2.Rd3#
- 1...dxc6!
- 1...Bxc6
- 1.Sxd7?
- threat
- 2.Rd3#
- 1...Bxe3
- 2.Qxe3#
- 1...Sd3
- 2.Rxd3#
- 1...Be4
- 2.Sxe6#
- 1...c3!
- threat
- 1.Sxe6+?
- 1...Bxe6
- 2.Rd3#
- 1...dxe6!
- 1...Bxe6
- 1.Rxe1+?
- 1...Be3
- 2.Qxe3#
- 1...Kc3!
- 1...Be3
- 1.Re2+?
- 1...Be3
- 2.Qxe3#
- 1...Kc3!
- 1...Be3
- 1.Rea3+?
- 1...Be3
- 2.Qxe3#
- 1...Kxe5!
- 1...Be3
- 1.Rb3+?
- 1...Be3
- 2.Qxe3#
- 1...Kxe5!
- 1...Be3
- 1.Rf3+?
- 1...Be3
- 2.Qxe3#
- 1...Kxe5!
- 1...Be3
- 1.Rg3+?
- 1...Be3
- 2.Qxe3#
- 1...Kxe5!
- 1...Be3
- 1.Rh3+?
- 1...Be3
- 2.Qxe3#
- 1...Kxe5!
- 1...Be3
- 1.Qb2+?
- 1...Kxe3
- 2.Bxg5#
- 1...Sc3
- 2.Qxc3#
- 1...c3!
- 1...Kxe3
- 1.Qf4+?
- 1...Be4
- 2.Qxe4#
- 1...Bxf4!
- 1...Be4
- 1.Sf3+?
- Keys
- 1.Qxe1!
- threat
- 2.Qd2#
- 1...Bxe3
- 2.Qxe3#
- 1...Be4
- 2.Rxe4#
- 1...Sc1
- 2.Qc3#
- 1...Sb4
- 2.Qc3#
- 1...c3
- 2.Rd3#
- threat
- 1.Qxe1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- B(e);::QAB(A)+R(B),DCHECK
- B(f);OGATE,P_SPINB(f),XR(B)::QAB1(A),XB(f)
- S(a);N_GUARD::QAR2(A)
- S(b);SBLOCK::QAB(A)+R(B),DCHECK
- P(c);SBLOCK::QAB(A)+R(B),DCHECK
- Tries
- Try
- S(D);CHECK
- Vars
- B(e);XS(D)::QAB(A)+R(B),DCHECK
- Refutation
- S(a);XS(D)
- Try
- S(D);CHECK,XP(g)
- Vars
- B(e);XS(D)::QAB(A)+R(B),DCHECK
- Refutation
- P(i);XS(D)
- Try
- S(D);XP(i)
- Threat
- QAB(A)+R(B),DCHECK
- Vars
- B(f);OGATE,P_SPINB(f),XR(B)::QAB1(A),XB(f)
- S(a);::QAB(A)+R(B),DCHECK,XS(a)
- B(e);N_GUARD::S(H),XP(h)
- Refutation
- P(c);
- Try
- S(H);CHECK,XP(h)
- Vars
- B(e);XS(H)::QAB(A)+R(B),DCHECK
- Refutation
- P(i);XS(H)
- Try
- R(B);CHECK,XS(a)
- Vars
- B(f);N_GUARD,P_SPINB(f)::QAB1(A),XB(f)
- Refutation
- K(d);S_FLIGHT
- Try
- R(B);CHECK
- Vars
- B(f);N_GUARD,P_SPINB(f)::QAB1(A),XB(f)
- Refutation
- K(d);S_FLIGHT
- Try
- R(B);CHECK
- Vars
- B(f);N_GUARD,P_SPINB(f)::QAB1(A),XB(f)
- Refutation
- K(d);P_SPINB(e),S_FLIGHT,XS(D)
- Try
- R(B);CHECK
- Vars
- B(f);N_GUARD,P_SPINB(f)::QAB1(A),XB(f)
- Refutation
- K(d);P_SPINB(e),S_FLIGHT,XS(D)
- Try
- R(B);CHECK
- Vars
- B(f);N_GUARD,P_SPINB(f)::QAB1(A),XB(f)
- Refutation
- K(d);P_SPINB(e),S_FLIGHT,XS(D)
- Try
- R(B);CHECK
- Vars
- B(f);N_GUARD,P_SPINB(f)::QAB1(A),XB(f)
- Refutation
- K(d);P_SPINB(e),S_FLIGHT,XS(D)
- Try
- R(B);CHECK
- Vars
- B(f);N_GUARD,P_SPINB(f)::QAB1(A),XB(f)
- Refutation
- K(d);P_SPINB(e),S_FLIGHT,XS(D)
- Try
- Q(A);CHECK
- Vars
- K(d);P_SPINB(f),S_FLIGHT,XR(B)::B(G),XB(f)
- S(b);N_GUARD,P_SPINS(b)::QAB1(A),XS(b)
- Refutation
- P(c);P_SPINP(c)
- Try
- Q(A);CHECK
- Vars
- B(e);N_GUARD,P_SPINB(e)::QAR1(A),XB(e)
- Refutation
- B(f);XQ(A)
- Try
- Actual
- Q(A);XS(a)
- Threat
- QAR2(A)
- Vars
- B(f);OGATE,XR(B)::QAB1(A),XB(f)
- B(e);N_GUARD::R1(B),XB(e)
- S(b);N_GUARD::QAB1(A)
- P(c);N_GUARD::R1(B)
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).