MESON Chess Problem Database
Problem Display
PID: 95191 (8/2b5/3p2R1/1K1k4/2Npr3/2pn4/2N5/7Q w - - 0 1)
Pypa, Volodimir Iosifovich
Cherkasskaya Pravda, 1972
#2
5 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ba5
- 2.Rxd6#
- 1...Bb6
- 2.Rxd6#
- 1...Bd8
- 2.Rxd6#
- 1...Sc1
- 2.Sb4#
- 1...Se1
- 2.Sb4#
- 1...Sb2
- 2.Sb4#
- 1...Sf2
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Sf4
- 2.Sb4#
- 1...Sc5
- 2.Sb4#
- 1...Se5
- 2.Sb4#
- 1...Ba5
- Tries
- 1.Rf6?
- 1...Ba5
- 2.Rxd6#
- 1...Bb6
- 2.Rxd6#
- 1...Bd8
- 2.Rxd6#
- 1...Sc1
- 2.Sb4#
- 1...Se1
- 2.Sb4#
- 1...Sb2
- 2.Sb4#
- 1...Sf2
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Sf4
- 2.Sb4#
- 1...Sc5
- 2.Sb4#
- 1...Se5
- 2.Sb4#
- 1...Bb8!
- 1...Ba5
- 1.Rh6?
- 1...Ba5
- 2.Rxd6#
- 1...Bb6
- 2.Rxd6#
- 1...Bd8
- 2.Rxd6#
- 1...Sc1
- 2.Sb4#
- 1...Se1
- 2.Sb4#
- 1...Sb2
- 2.Sb4#
- 1...Sf2
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Sf4
- 2.Sb4#
- 1...Sc5
- 2.Sb4#
- 1...Se5
- 2.Sb4#
- 1...Bb8!
- 1...Ba5
- 1.Qg2?
- 1...Ba5
- 2.Rxd6#
- 1...Bb6
- 2.Rxd6#
- 1...Bd8
- 2.Rxd6#
- 1...Sc1
- 2.Sb4#
- 1...Se1
- 2.Sb4#
- 1...Sb2
- 2.Sb4#
- 1...Sf2
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Sf4
- 2.Sb4#
- 1...Sc5
- 2.Sb4#
- 1...Se5
- 2.Sb4#
- 1...Bb8!
- 1...Ba5
- 1.Qf3?
- 1...Ba5
- 2.Rxd6#
- 1...Bb6
- 2.Rxd6#
- 1...Bd8
- 2.Rxd6#
- 1...Sc1
- 2.Sb4#
- 1...Se1
- 2.Sb4#
- 1...Sb2
- 2.Sb4#
- 1...Sf2
- 2.Sb4#
- 1...Sb4
- 2.Sxb4#
- 1...Sf4
- 2.Sb4#
- 1...Sc5
- 2.Sb4#
- 1...Se5
- 2.Sb4#
- 1...Bb8!
- 1...Ba5
- 1.Qa1?
- threat
- 2.Qa8#
- 1...Ba5
- 2.Rxd6#
- 1...Sb4
- 2.Sxb4#
- 1...Sc5
- 2.Sb4#
- 1...Se5
- 2.Sb4#
- 1...Re8!
- threat
- 1.Qh5+?
- 1...Se5
- 2.Sb4#
- 1...Re5!
- 1...Se5
- 1.Rf6?
- Keys
- 1.Qh8!
- threat
- 2.Qa8#
- 1...Re8
- 2.Qxd4#
- 1...Bb8
- 2.Sb6#
- 1...Bd8
- 2.Rxd6#
- 1...Sb4
- 2.Sxb4#
- 1...Sc5
- 2.Sb4#
- 1...Se5
- 2.Sb4#
- threat
- 1.Qh8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 7
- Sets
- B(g);N_GUARD::R1(E),XP(f)
- S(b);N_GUARD::S(B)
- S(b);N_GUARD::S(B),XS(b)
- Tries
- Try
- R(E);
- Vars
- B(g);N_GUARD::R1(E),XP(f)
- S(b);N_GUARD::S(B)
- S(b);N_GUARD::S(B),XS(b)
- Refutation
- B(g);
- Try
- R(E);
- Vars
- B(g);N_GUARD::R1(E),XP(f)
- S(b);N_GUARD::S(B)
- S(b);N_GUARD::S(B),XS(b)
- Refutation
- B(g);
- Try
- Q(A);
- Vars
- B(g);N_GUARD::R1(E),XP(f)
- S(b);N_GUARD::S(B)
- S(b);N_GUARD::S(B),XS(b)
- Refutation
- B(g);
- Try
- Q(A);
- Vars
- B(g);N_GUARD::R1(E),XP(f)
- S(b);N_GUARD::S(B)
- S(b);N_GUARD::S(B),XS(b)
- Refutation
- B(g);
- Try
- Q(A);N_PINR(d)
- Threat
- QAB(A)
- Vars
- B(g);N_GUARD::R1(E),XP(f)
- S(b);N_GUARD::S(B),XS(b)
- S(b);N_GUARD::S(B)
- Refutation
- R(d);
- Try
- Q(A);CHECK,N_PINR(d)
- Vars
- S(b);P_SPINS(b)::S(B)
- Refutation
- R(d);P_SPINR(d)
- Try
- Actual
- Q(A);N_PINR(d)
- Threat
- QAB(A)
- Vars
- R(d);N_GUARD::QAR1(A),XP(c)
- B(g);N_GUARD::S(C)
- B(g);N_GUARD::R1(E),XP(f)
- S(b);N_GUARD::S(B),XS(b)
- S(b);N_GUARD::S(B)
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