MESON Chess Problem Database
Problem Display
PID: 103173 (b1B3Q1/4p2r/3pN1pr/1pPP1PP1/2N1k3/3R1R1p/3Kn1P1/8 w - - 0 1)
Markovsky, Grigory F
Canadian Chess Chat, 1981
#2
12 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bxd5
- 2.Rde3#
- 1...Sc1
- 2.Rd4#
- 2.Rf4#
- 1...Sg1
- 2.Rd4#
- 2.Rf4#
- 1...Sc3
- 2.Rd4#
- 2.Rf4#
- 1...Sg3
- 2.Rd4#
- 2.Rf4#
- 1...Sd4
- 2.Rxd4#
- 1...Sf4
- 2.Rxf4#
- 1...dxc5
- 2.Sxc5#
- 1...gxf5
- 2.Rfe3#
- 1...Bxd5
- Tries
- 1.Kxe2?
- threat
- 2.Rd4#
- 2.Rf4#
- 1...dxc5
- 2.Sxc5#
- 2.Rf4#
- 1...Rh4
- 2.Rd4#
- 1...bxc4!
- threat
- 1.Sb6?
- threat
- 2.Rde3#
- 1...Ke5
- 2.Rde3#
- 1...Sf4!
- threat
- 1.Sxd6+?
- 1...Ke5
- 2.Rfe3#
- 1...exd6!
- 1...Ke5
- 1.Sc7?
- threat
- 2.Qe6#
- 1...Bxd5
- 2.Qxd5#
- 1...gxf5
- 2.Bxf5#
- 1...Sd4
- 2.Rde3#
- 1...Sf4
- 2.Rfe3#
- 1...e5
- 2.Sxd6#
- 1...e6
- 2.Qxe6#
- 1...Rf7!
- threat
- 1.Sd8?
- threat
- 2.Qe6#
- 1...Bxd5
- 2.Qxd5#
- 1...gxf5
- 2.Bxf5#
- 1...Sd4
- 2.Rde3#
- 1...Sf4
- 2.Rfe3#
- 1...e5
- 2.Sxd6#
- 1...e6
- 2.Qxe6#
- 1...Rf7!
- threat
- 1.Sf8?
- threat
- 2.Qe6#
- 1...Bxd5
- 2.Qxd5#
- 1...gxf5
- 2.Bxf5#
- 1...Sd4
- 2.Rde3#
- 1...Sf4
- 2.Rfe3#
- 1...e5
- 2.Sxd6#
- 1...e6
- 2.Qxe6#
- 1...Rf7!
- threat
- 1.Bb7?
- threat
- 2.Rde3#
- 1...Sf4
- 2.Rxf4#
- 1...Bxb7!
- threat
- 1.Qf7?
- threat
- 2.Rfe3#
- 1...Sd4
- 2.Rxd4#
- 1...Rxf7!
- threat
- 1.Qxg6?
- threat
- 2.Rfe3#
- 1...Sd4
- 2.Rxd4#
- 1...Rxg6!
- threat
- 1.Qf8?
- threat
- 2.Rfe3#
- 1...Sd4
- 2.Rxd4#
- 1...Rf7!
- threat
- 1.gxh6?
- threat
- 2.Sg5#
- 1...g5
- 2.Sxg5#
- 1...bxc4!
- threat
- 1.Kxe2?
- Keys
- 1.Sg7!
- threat
- 2.Qe6#
- 1...Bxd5
- 2.Qxd5#
- 1...gxf5
- 2.Bxf5#
- 1...Sd4
- 2.Rde3#
- 1...Sf4
- 2.Rfe3#
- 1...e5
- 2.Sxd6#
- 1...e6
- 2.Qxe6#
- threat
- 1.Sg7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- B(j);SBLOCK,XP(G)::R1(C)
- S(a);N_GUARD::R1(C),XS(a)
- S(a);N_GUARD::R1(D),XS(a)
- P(e);XP(F)::S(J),XP(e)
- P(f);SBLOCK,XP(H)::R1(D)
- Tries
- Try
- K(A);P-FLIGHT,XS(a)
- Threat
- DUALS(2)
- Vars
- R(g);::R1(C)
- Refutation
- P(d);XS(E)
- Try
- S(E);
- Threat
- R1(C)
- Vars
- K(c);P-FLIGHT::R(C)
- Refutation
- S(a);
- Try
- S(E);CHECK,XP(e)
- Vars
- K(c);P-FLIGHT::R(D)
- Refutation
- P(h);XS(E)
- Try
- S(J);
- Threat
- QAR2(L)
- Vars
- B(j);OGATE,XP(G)::QAB1(L),XB(j)
- P(f);OGATE,XP(H)::B(K),XP(f)
- S(a);SBLOCK::R1(C)
- S(a);SBLOCK::R1(D)
- P(h);N_GUARD,SBLOCK::S(E),XP(e)
- P(h);::QAR2(L),XP(h)
- Refutation
- R(i);
- Try
- S(J);
- Threat
- QAR2(L)
- Vars
- B(j);OGATE,XP(G)::QAB1(L),XB(j)
- P(f);OGATE,XP(H)::B(K),XP(f)
- S(a);SBLOCK::R1(C)
- S(a);SBLOCK::R1(D)
- P(h);N_GUARD,SBLOCK::S(E),XP(e)
- P(h);::QAR2(L),XP(h)
- Refutation
- R(i);
- Try
- S(J);
- Threat
- QAR2(L)
- Vars
- B(j);OGATE,XP(G)::QAB1(L),XB(j)
- P(f);OGATE,XP(H)::B(K),XP(f)
- S(a);SBLOCK::R1(C)
- S(a);SBLOCK::R1(D)
- P(h);N_GUARD,SBLOCK::S(E),XP(e)
- P(h);::QAR2(L),XP(h)
- Refutation
- R(i);
- Try
- B(K);
- Threat
- R1(C)
- Vars
- S(a);N_GUARD::R1(D),XS(a)
- Refutation
- B(j);XB(K)
- Try
- Q(L);
- Threat
- R1(D)
- Vars
- S(a);N_GUARD::R1(C),XS(a)
- Refutation
- R(i);XQ(L)
- Try
- Q(L);XP(f)
- Threat
- R1(D)
- Vars
- S(a);N_GUARD::R1(C),XS(a)
- Refutation
- R(g);XQ(L)
- Try
- Q(L);
- Threat
- R1(D)
- Vars
- S(a);N_GUARD::R1(C),XS(a)
- Refutation
- R(i);
- Try
- P(I);XR(g)
- Threat
- S(J)
- Vars
- P(f);::S(J),XP(f)
- Refutation
- P(d);XS(E)
- Try
- Actual
- S(J);
- Threat
- QAR2(L)
- Vars
- B(j);OGATE,XP(G)::QAB1(L),XB(j)
- P(f);OGATE,XP(H)::B(K),XP(f)
- S(a);SBLOCK::R1(C)
- S(a);SBLOCK::R1(D)
- P(h);N_GUARD,SBLOCK::S(E),XP(e)
- P(h);::QAR2(L),XP(h)
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