MESON Chess Problem Database
Problem Display
PID: 91768 (8/p1Nrp3/1p6/1p6/4k2K/1Q1NBR1p/r5B1/1b3n2 w - - 0 1)
Shanshin, Valery Yurevich
Probleemblad, 1987
#2
7 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxd3
- 2.Qe6#
- 1...Rd5
- 2.Qxd5#
- 1...Bxd3
- 2.Qe6#
- 1...Sxe3
- 2.Rf4#
- 1...Rxd3
- Tries
- 1.Se1?
- threat
- 2.Qe6#
- 1...Ke5
- 2.Qe6#
- 1...Sxe3
- 2.Qxe3#
- 1...Rd5
- 2.Qxd5#
- 1...e5
- 2.Rf4#
- 1...e6
- 2.Qxe6#
- 1...Rd6!
- threat
- 1.Sf2+?
- 1...Ke5
- 2.Qe6#
- 1...Rxf2!
- 1...Ke5
- 1.Sc5+?
- 1...Ke5
- 2.Qe6#
- 1...bxc5!
- 1...Ke5
- 1.Bg1?
- threat
- 2.Rf4#
- 2.Qe6#
- 1...Rxg2
- 2.Rf4#
- 1...Rxd3
- 2.Qe6#
- 1...Bxd3
- 2.Qe6#
- 1...hxg2
- 2.Rf4#
- 1...Se3
- 2.Rf4#
- 1...Rd5
- 2.Rf4#
- 2.Qxd5#
- 1...Rd6
- 2.Rf4#
- 1...e5
- 2.Rf4#
- 1...e6
- 2.Rf4#
- 2.Qxe6#
- 1...Rf2!
- threat
- 1.Bf2?
- threat
- 2.Rf4#
- 2.Qe6#
- 1...Rxd3
- 2.Qe6#
- 1...Bxd3
- 2.Qe6#
- 1...hxg2
- 2.Rf4#
- 1...Se3
- 2.Rf4#
- 1...Rd5
- 2.Rf4#
- 2.Qxd5#
- 1...Rd6
- 2.Rf4#
- 1...e5
- 2.Rf4#
- 1...e6
- 2.Rf4#
- 2.Qxe6#
- 1...Rxf2!
- threat
- 1.Bc5?
- threat
- 2.Rf4#
- 2.Qe6#
- 1...Rxg2
- 2.Rf4#
- 1...Rxd3
- 2.Qe6#
- 1...Bxd3
- 2.Qe6#
- 1...hxg2
- 2.Rf4#
- 1...Rd4
- 2.Qe6#
- 1...Rd5
- 2.Rf4#
- 2.Qxd5#
- 1...Rd6
- 2.Rf4#
- 1...Se3
- 2.Rf4#
- 1...e5
- 2.Rf4#
- 1...e6
- 2.Rf4#
- 2.Qxe6#
- 1...bxc5!
- threat
- 1.Bxb6?
- threat
- 2.Rf4#
- 2.Qe6#
- 1...Rxg2
- 2.Rf4#
- 1...Rxd3
- 2.Qe6#
- 1...Bxd3
- 2.Qe6#
- 1...hxg2
- 2.Rf4#
- 1...Rd4
- 2.Qe6#
- 1...Rd5
- 2.Rf4#
- 2.Qxd5#
- 1...Rd6
- 2.Rf4#
- 1...Se3
- 2.Rf4#
- 1...e5
- 2.Rf4#
- 1...e6
- 2.Rf4#
- 2.Qxe6#
- 1...axb6!
- threat
- 1.Rxh3+?
- 1...Kf5
- 2.Qe6#
- 2.Qf7#
- 1...Rxg2!
- 1...Kf5
- 1.Qc4+?
- 1...Rd4
- 2.Qxd4#
- 1...bxc4!
- 1...Rd4
- 1.Qb4+?
- 1...Rd4
- 2.Qxd4#
- 1...Kxd3!
- 1...Rd4
- 1.Se1?
- Keys
- 1.Bd4!
- threat
- 2.Rf4#
- 1...Kxd4
- 2.Qb4#
- 1...Rxd4
- 2.Qe6#
- 1...Bxd3
- 2.Qxd3#
- threat
- 1.Bd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- R(i);SBLOCK,XS(C)::QAR2(B)
- R(i);N_GUARD::QAB1(B),XR(i)
- B(a);SBLOCK,XS(C)::QAR2(B)
- S(b);SBLOCK,XB(D)::B(A)+R(E),DCHECK
- Tries
- Try
- S(C);
- Threat
- QAR2(B)
- Vars
- K(e);P-FLIGHT::QAR1(B)
- S(b);OGATE,XB(D)::QAR1(B),XS(b)
- R(i);N_GUARD::QAB1(B),XR(i)
- P(j);SBLOCK::B(A)+R(E),DCHECK
- P(j);::QAR2(B),XP(j)
- Refutation
- R(i);
- Try
- S(C);CHECK
- Vars
- K(e);P-FLIGHT::QAR1(B)
- Refutation
- R(c);XS(C)
- Try
- S(C);CHECK
- Vars
- K(e);P-FLIGHT::QAR1(B)
- Refutation
- P(g);XS(C)
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(c);XB(A)::R1(E)
- R(i);XS(C)::QAR2(B)
- B(a);XS(C)::QAR2(B)
- P(d);XB(A)::R1(E)
- S(b);::B(A)+R(E),DCHECK
- R(i);::B(A)+R(E),DCHECK
- P(j);::B(A)+R(E),DCHECK
- Refutation
- R(c);
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(i);XS(C)::QAR2(B)
- B(a);XS(C)::QAR2(B)
- P(d);XB(A)::R1(E)
- S(b);::B(A)+R(E),DCHECK
- R(i);::B(A)+R(E),DCHECK
- P(j);::B(A)+R(E),DCHECK
- Refutation
- R(c);XB(D)
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(c);XB(A)::R1(E)
- R(i);XS(C)::QAR2(B)
- B(a);XS(C)::QAR2(B)
- P(d);XB(A)::R1(E)
- R(i);::QAR2(B)
- R(i);::B(A)+R(E),DCHECK
- S(b);::B(A)+R(E),DCHECK
- P(j);::B(A)+R(E),DCHECK
- Refutation
- P(g);XB(D)
- Try
- B(D);XP(g)
- Threat
- DUALS(2)
- Vars
- R(c);XB(A)::R1(E)
- R(i);XS(C)::QAR2(B)
- B(a);XS(C)::QAR2(B)
- P(d);XB(A)::R1(E)
- R(i);::QAR2(B)
- R(i);::B(A)+R(E),DCHECK
- S(b);::B(A)+R(E),DCHECK
- P(j);::B(A)+R(E),DCHECK
- Refutation
- P(h);XB(D)
- Try
- R(E);CHECK,XP(d)
- Refutation
- R(c);XB(A)
- Try
- Q(B);CHECK
- Vars
- R(i);N_GUARD,P_SPINR(i)::QAR1(B),XR(i)
- Refutation
- P(f);XQ(B)
- Try
- Q(B);CHECK
- Vars
- R(i);N_GUARD,P_SPINR(i)::QAR1(B),XR(i)
- Refutation
- K(e);S_FLIGHT,XS(C)
- Try
- Actual
- B(D);
- Threat
- B(A)+R(E),DCHECK
- Vars
- K(e);OGATEB,P-FLIGHT,XB(D)::QAR2(B)
- R(i);SBLOCK,XB(D)::QAR2(B)
- B(a);OGATE,XS(C)::QAB1(B),XB(a)
Developed and maintained by Brian Stephenson.
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CSS/Javascript (jQuery, Bootstrap & DataTables).