MESON Chess Problem Database
Problem Display
PID: 95192 (8/8/8/pn1p4/P1Pb1R1Q/2k5/2P5/1R1K4 w - - 0 1)
Pypa, Volodimir Iosifovich
Cherkasskaya Pravda, 1973
#2
7 + 5
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bg1
- 2.Rb3#
- 2.Qe1#
- 1...Bf2
- 2.Rb3#
- 1...Be3
- 2.Rb3#
- 1...Bc5
- 2.Rb3#
- 2.Qe1#
- 1...Be5
- 2.Rb3#
- 2.Rf3#
- 2.Qe1#
- 2.Qg3#
- 2.Qh3#
- 1...Bb6
- 2.Rb3#
- 2.Qe1#
- 1...Bf6
- 2.Rb3#
- 2.Rf3#
- 2.Qe1#
- 2.Qg3#
- 2.Qh3#
- 1...Ba7
- 2.Rb3#
- 2.Qe1#
- 1...Bg7
- 2.Rb3#
- 2.Rf3#
- 2.Qe1#
- 2.Qg3#
- 2.Qh3#
- 1...Bh8
- 2.Rb3#
- 2.Rf3#
- 2.Qe1#
- 2.Qg3#
- 2.Qh3#
- 1...dxc4
- 2.Qe1#
- 1...Bg1
- Tries
- 1.Rxb5?
- 1...dxc4
- 2.Qe1#
- 1...Bg1
- 2.Rb3#
- 2.Qe1#
- 1...Bf2
- 2.Rb3#
- 1...Be3
- 2.Rb3#
- 1...Bc5
- 2.Rb3#
- 2.Qe1#
- 1...Be5
- 2.Rf3#
- 2.Rb3#
- 2.Qe1#
- 2.Qg3#
- 2.Qh3#
- 1...Bb6
- 2.Rb3#
- 2.Qe1#
- 1...Bf6
- 2.Rf3#
- 2.Rb3#
- 2.Qe1#
- 2.Qg3#
- 2.Qh3#
- 1...Ba7
- 2.Rb3#
- 2.Qe1#
- 1...Bg7
- 2.Rf3#
- 2.Rb3#
- 2.Qe1#
- 2.Qg3#
- 2.Qh3#
- 1...Bh8
- 2.Rf3#
- 2.Rb3#
- 2.Qe1#
- 2.Qg3#
- 2.Qh3#
- 1...Kxc4!
- 1...dxc4
- 1.Rf3+?
- 1...Be3
- 2.Rb3#
- 2.Rxe3#
- 1...Kxc4!
- 1...Be3
- 1.Rxd4?
- threat
- 2.Rb3#
- 2.Rd3#
- 1...dxc4
- 2.Rxc4#
- 1...Sxd4!
- threat
- 1.Qf2?
- 1...Bxf2
- 2.Rb3#
- 1...dxc4
- 2.Qe1#
- 2.Qd2#
- 1...Sa3
- 2.Qxd4#
- 1...Be3
- 2.Rb3#
- 2.Qxe3#
- 1...Bc5
- 2.Rb3#
- 2.Qe1#
- 2.Qd2#
- 1...Be5
- 2.Rb3#
- 2.Qe1#
- 2.Qe3#
- 2.Qg3#
- 2.Qd2#
- 2.Qf3#
- 1...Bb6
- 2.Rb3#
- 2.Qe1#
- 2.Qd2#
- 1...Bf6
- 2.Rb3#
- 2.Qe1#
- 2.Qe3#
- 2.Qg3#
- 2.Qd2#
- 2.Qf3#
- 1...Ba7
- 2.Rb3#
- 2.Qe1#
- 2.Qd2#
- 1...Bg7
- 2.Rb3#
- 2.Qe1#
- 2.Qe3#
- 2.Qg3#
- 2.Qd2#
- 2.Qf3#
- 1...Bh8
- 2.Rb3#
- 2.Qe1#
- 2.Qe3#
- 2.Qg3#
- 2.Qd2#
- 2.Qf3#
- 1...Sd6
- 2.Qxd4#
- 1...Sa7
- 2.Qxd4#
- 1...Sc7
- 2.Qxd4#
- 1...Kxc4!
- 1...Bxf2
- 1.Qg3+?
- 1...Be3
- 2.Rb3#
- 2.Qxe3#
- 1...Kxc4!
- 1...Be3
- 1.Qh3+?
- 1...Be3
- 2.Rb3#
- 2.Qxe3#
- 1...Kxc4!
- 1...Be3
- 1.Qh8?
- 1...Bxh8
- 2.Rb3#
- 1...dxc4
- 2.Rf3#
- 1...Sa3
- 2.Qxd4#
- 1...Be5
- 2.Rb3#
- 2.Qh3#
- 1...Bf6
- 2.Rb3#
- 2.Qh3#
- 1...Bg7
- 2.Rb3#
- 2.Qh3#
- 1...Sd6
- 2.Qxd4#
- 1...Sa7
- 2.Qxd4#
- 1...Sc7
- 2.Qxd4#
- 1...Kxc4!
- 1...Bxh8
- 1.cxb5?
- 1...Bg1
- 2.Rb3#
- 2.Qe1#
- 1...Bf2
- 2.Rb3#
- 1...Be3
- 2.Rb3#
- 1...Bc5
- 2.Rb3#
- 2.Qe1#
- 1...Be5
- 2.Rb3#
- 2.Rf3#
- 2.Qe1#
- 2.Qg3#
- 2.Qh3#
- 1...Bb6
- 2.Rb3#
- 2.Qe1#
- 1...Bf6
- 2.Rb3#
- 2.Rf3#
- 2.Qe1#
- 2.Qg3#
- 2.Qh3#
- 1...Ba7
- 2.Rb3#
- 2.Qe1#
- 1...Bg7
- 2.Rb3#
- 2.Rf3#
- 2.Qe1#
- 2.Qg3#
- 2.Qh3#
- 1...Bh8
- 2.Rb3#
- 2.Rf3#
- 2.Qe1#
- 2.Qg3#
- 2.Qh3#
- 1...Kc4!
- 1...Bg1
- 1.Rxb5?
- Keys
- 1.Qf6!
- 1...Kxc4
- 2.Qc6#
- 1...Bxf6
- 2.Rb3#
- 1...dxc4
- 2.Rf3#
- 1...Sa3
- 2.Qxd4#
- 1...Be5
- 2.Rb3#
- 1...Sd6
- 2.Qxd4#
- 1...Sa7
- 2.Qxd4#
- 1...Sc7
- 2.Qxd4#
- 1...Kxc4
- 1.Qf6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 7
- REMOVED MATES = 2
- Sets
- B(b);::R1(A)
- P(e);SBLOCK,XP(E)::QAB(G)
- Tries
- Try
- R(A);XS(d)
- Vars
- P(e);SBLOCK,XP(E)::QAB(G)
- B(b);::R1(A)
- Refutation
- K(a);P-FLIGHT,P_SPINB(b),XP(E)
- Try
- R(F);CHECK
- Refutation
- K(a);P-FLIGHT,P_SPINB(b),XP(E)
- Try
- R(F);XB(b)
- Threat
- DUALS(2)
- Vars
- P(e);OGATE,XP(E)::R1(F),XP(e)
- Refutation
- S(d);XR(F)
- Try
- Q(G);
- Vars
- B(b);XQ(G)::R1(A)
- S(d);N_GUARD::QAB1(G),XB(b)
- Refutation
- K(a);P-FLIGHT,P_SPINB(b),XP(E)
- Try
- Q(G);CHECK
- Refutation
- K(a);P-FLIGHT,P_SPINB(b),XP(E)
- Try
- Q(G);CHECK
- Refutation
- K(a);P-FLIGHT,P_SPINB(b),XP(E)
- Try
- Q(G);P_PINB(b)
- Vars
- B(b);N_SPINB(b),XQ(G)::R1(A)
- P(e);SBLOCK,XP(E)::R(F)
- S(d);N_GUARD::QAB1(G),XB(b)
- Refutation
- K(a);P-FLIGHT,XP(E)
- Try
- P(E);XS(d)
- Vars
- B(b);::R1(A)
- Refutation
- K(a);P-FLIGHT,P_SPINB(b)
- Try
- Actual
- Q(G);P_PINB(b)
- Vars
- K(a);OGATEB,P-FLIGHT,XP(E)::QAR2(G)
- B(b);N_SPINB(b),XQ(G)::R1(A)
- P(e);SBLOCK,XP(E)::R(F)
- S(d);N_GUARD::QAB1(G),XB(b)
- B(b);::R1(A)
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