MESON Chess Problem Database
Problem Display
PID: 179223 (6K1/3P1pp1/2R5/3PkbQ1/2PbNr2/2Ppqn2/2N4B/4R2B w - - 0 1)
Bourd, Evgeny
1st HM., Phenix, 2012-2013
#2
12 + 9
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Kxe4
- 2.Qxf4#
- 1...Qg1
- 2.Bxf4#
- 2.Qxf4#
- 1...Qf2
- 2.Bxf4#
- 2.Qxf4#
- 1...Qxe1
- 2.Qxf4#
- 1...Qe2
- 2.Qxf4#
- 1...Qxe4
- 2.Bxf4#
- 2.Qxf4#
- 1...f6
- 2.Re6#
- 1...Kxe4
- Tries
- 1.Kxf7?
- threat
- 2.Re6#
- 1...Kxe4
- 2.Qxf4#
- 1...Sxg5+!
- threat
- 1.Sc5?
- threat
- 2.Bxf4#
- 2.Qxf4#
- 1...Bxc5
- 2.Qxf4#
- 1...Sxh2
- 2.Sxd3#
- 1...Sxg5
- 2.cxd4#
- 1...Sxe1!
- threat
- 1.Sd6?
- threat
- 2.Bxf4#
- 2.Qxf5#
- 1...Sxe1
- 2.Sxf7#
- 2.Qxf5#
- 1...Sxh2
- 2.Sxf7#
- 1...Sh4
- 2.Sxf7#
- 2.Bxf4#
- 2.cxd4#
- 1...g6
- 2.Bxf4#
- 1...Sxg5!
- threat
- 1.Sf6?
- threat
- 2.Bxf4#
- 2.Qxf4#
- 1...Sxe1
- 2.Sg4#
- 1...Sxg5
- 2.cxd4#
- 1...gxf6
- 2.Qxf4#
- 1...Sxh2!
- threat
- 1.Rxe3?
- threat
- 2.Bxf4#
- 2.Qxf4#
- 1...Sxh2
- 2.cxd4#
- 1...Sxg5
- 2.cxd4#
- 1...Bxe3!
- threat
- 1.Qf6+?
- 1...Kxe4
- 2.Qxd4#
- 1...gxf6!
- 1...Kxe4
- 1.Qxg7+?
- 1...Kxe4
- 2.Qxd4#
- 1...f6!
- 1...Kxe4
- 1.cxd4+?
- 1...Kxe4
- 2.Rxe3#
- 2.Qxf4#
- 1...Qxd4
- 2.Bxf4#
- 2.Qxf4#
- 1...Sxd4!
- 1...Kxe4
- 1.d8Q?
- threat
- 2.Qde7#
- 2.Qe8#
- 1...Kxe4
- 2.Qxf4#
- 1...Sxg5
- 2.Qc7#
- 2.Qd6#
- 2.Qb8#
- 1...Bc5!
- threat
- 1.Kxf7?
- Keys
- 1.Sf2!
- threat
- 2.Bxf4#
- 2.Qxf4#
- 1...Sxe1
- 2.Sg4#
- 1...Sxh2
- 2.Sxd3#
- 1...Sxg5
- 2.cxd4#
- threat
- 1.Sf2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- K(f);N_SPINB(g),N_SPINR(e),P-FLIGHT,P_SPINQ(b),P_SPINS(c),XS(G)::QAR1(I),XR(e)
- Q(b);N_GUARD,XR(A)::QAB1(I),XR(e)
- Q(b);N_GUARD::QAB1(I),XR(e)
- P(h);N_GUARD::R1(J)
- Tries
- Try
- K(L);S_FLIGHT,XP(h)
- Threat
- R1(J)
- Vars
- K(f);N_SPINB(g),N_SPINR(e),P-FLIGHT,P_SPINQ(b),P_SPINS(c),XS(G)::QAR1(I),XR(e)
- Refutation
- S(c);CHECK,N_SPINB(g),XQ(I)
- Try
- S(G);P_PINQ(b)
- Threat
- DUALS(2)
- Vars
- B(d);XS(G)::QAB1(I),XR(e)
- S(c);N_SPINR(e),XB(D)::S(G),XP(a)
- S(c);N_GUARD,N_SPINB(g),XQ(I)::P(E),XB(d)
- Refutation
- S(c);N_SPINQ(b),XR(A)
- Try
- S(G);P_PINQ(b)
- Threat
- DUALS(2)
- Vars
- S(c);N_SPINR(e),XB(D)::S(G),XP(h)
- P(i);::B(D),XR(e)
- Refutation
- S(c);N_SPINB(g),XQ(I)
- Try
- S(G);P_PINQ(b)
- Threat
- DUALS(2)
- Vars
- S(c);N_SPINQ(b),XR(A)::S(G)
- S(c);N_GUARD,N_SPINB(g),XQ(I)::P(E),XB(d)
- P(i);XS(G)::QAB1(I),XR(e)
- Refutation
- S(c);N_SPINR(e),XB(D)
- Try
- R(A);XQ(b)
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD,N_SPINR(e),XB(D)::P(E),XB(d)
- S(c);N_GUARD,N_SPINB(g),XQ(I)::P(E),XB(d)
- Refutation
- B(d);XR(A)
- Try
- Q(I);CHECK,N_PINB(g)
- Vars
- K(f);N_SPINR(e),OGATE,P-FLIGHT,P_SPINQ(b),P_SPINS(c),XS(G)::QAR1(I),XB(d)
- Refutation
- P(i);XQ(I)
- Try
- Q(I);CHECK,N_PINB(g),XP(i)
- Vars
- K(f);N_SPINR(e),OGATE,P-FLIGHT,P_SPINQ(b),P_SPINS(c),XS(G)::QAR1(I),XB(d)
- Refutation
- P(h);P_SPINP(h)
- Try
- P(E);CHECK,XB(d)
- Refutation
- S(c);XP(E)
- Try
- P(K);
- Threat
- DUALS(2)
- Vars
- K(f);N_SPINB(g),N_SPINR(e),P-FLIGHT,P_SPINQ(b),P_SPINS(c),XS(G)::QAR1(I),XR(e)
- Refutation
- B(d);
- Try
- Actual
- S(G);P_PINQ(b)
- Threat
- DUALS(2)
- Vars
- S(c);N_SPINQ(b),XR(A)::S(G)
- S(c);N_SPINR(e),XB(D)::S(G),XP(a)
- S(c);N_GUARD,N_SPINB(g),XQ(I)::P(E),XB(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).