MESON Chess Problem Database
Problem Display
PID: 276669 (8/2K5/NPp1N3/1r6/Rnkp1Q2/1n1pP3/8/BR5B w - - 0 1)
Murashev, Pavel Aleksandrovich
Phenix, 2023
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Ra5
- 2.Rxb4#
- 1...Rc5
- 2.Rxb4#
- 1...Rd5
- 2.Rxb4#
- 1...Re5
- 2.Rxb4#
- 1...Rf5
- 2.Rxb4#
- 1...Rg5
- 2.Rxb4#
- 1...Rh5
- 2.Rxb4#
- 1...Sxa1
- 2.Qxd4#
- 1...Sc1
- 2.Qxd4#
- 1...Sd2
- 2.Qxd4#
- 1...Sa5
- 2.Qxd4#
- 1...Sc5
- 2.Qxd4#
- 1...Ra5
- Tries
- 1.Sec5?
- threat
- 2.Qf7#
- 1...Rxc5
- 2.Rxb4#
- 1...Sxa1
- 2.Qxd4#
- 1...Sxc5
- 2.Qxd4#
- 1...Ra5
- 2.Rxb4#
- 1...Rxb6!
- threat
- 1.Qe4?
- 1...Sxa1
- 2.Qxd4#
- 1...Ra5
- 2.Rxb4#
- 1...Rc5
- 2.Rxb4#
- 1...Rd5
- 2.Rxb4#
- 1...Re5
- 2.Rxb4#
- 1...Rf5
- 2.Rxb4#
- 1...Rg5
- 2.Rxb4#
- 1...Rh5
- 2.Rxb4#
- 1...Sc1
- 2.Qxd4#
- 1...Sd2
- 2.Qxd4#
- 1...Sa5
- 2.Qxd4#
- 1...Sc5
- 2.Qxd4#
- 1...d2
- 2.Qc2#
- 1...c5
- 2.Qd5#
- 1...Rxb6!
- 1...Sxa1
- 1.Qf7?
- threat
- 2.Sec5#
- 1...Rxb6
- 2.Sxd4#
- 1...Ra5
- 2.Rxb4#
- 1...Rc5
- 2.Rxb4#
- 1...Rd5
- 2.Rxb4#
- 1...Re5
- 2.Rxb4#
- 1...Rf5
- 2.Rxb4#
- 1...Rg5
- 2.Rxb4#
- 1...Rh5
- 2.Rxb4#
- 1...Sc5
- 2.Sexc5#
- 1...c5
- 2.Sxd4#
- 2.Sf4#
- 2.Sexc5#
- 2.Sg5#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Sxa1!
- threat
- 1.Sec5?
- Keys
- 1.Sxd4!
- threat
- 2.Sxb3#
- 1...Rxb6
- 2.Qf7#
- 1...Sxa1
- 2.Se2#
- 1...Sxd4
- 2.Qxd4#
- 1...d2
- 2.Qf1#
- 1...Ra5
- 2.Rxb4#
- 1...Rc5
- 2.Rxb4#
- 1...Rd5
- 2.Rxb4#
- 1...Re5
- 2.Rxb4#
- 1...Rf5
- 2.Rxb4#
- 1...Rg5
- 2.Rxb4#
- 1...Rh5
- 2.Rxb4#
- 1...Sc1
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sf5#
- 2.Sxc6#
- 2.Se6#
- 2.Rxc1#
- 1...Sd2
- 2.Rc1#
- 1...Sa5
- 2.Sc2#
- 2.Se2#
- 2.Sb3#
- 2.Sf5#
- 2.Sxc6#
- 2.Se6#
- 2.Rc1#
- 1...Sc5
- 2.Rc1#
- threat
- 1.Sxd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- R(f);N_GUARD::R1(E),XS(c)
- S(a);N_GUARD,XB(A)::QAR1(F),XP(e)
- S(a);N_GUARD::QAR1(F),XP(e)
- Tries
- Try
- S(I);
- Threat
- QAB(F)
- Vars
- R(f);N_GUARD,XS(I)::R1(E),XS(c)
- S(a);N_GUARD,XB(A)::QAR1(F),XP(e)
- S(a);N_GUARD,XS(I)::QAR1(F),XP(e)
- R(f);N_GUARD::R1(E),XS(c)
- Refutation
- R(f);XP(H)
- Try
- Q(F);
- Vars
- S(a);N_GUARD,XB(A)::QAR1(F),XP(e)
- R(f);N_GUARD::R1(E),XS(c)
- S(a);N_GUARD::QAR1(F),XP(e)
- P(b);OGATE::QAR2(F)
- P(g);N_GUARD,S_CUTR(f)::QAB1(F)
- Refutation
- R(f);XP(H)
- Try
- Q(F);N_PINP(e)
- Threat
- QAB(F)+S(I)
- Vars
- R(f);N_GUARD,XP(H)::QAB(F)+S(I),XP(e)
- R(f);N_GUARD::R1(E),XS(c)
- S(a);::QAB(F)+S(I),XS(a)
- Refutation
- S(a);XB(A)
- Try
- Actual
- S(I);XP(e)
- Threat
- QAR(F)+S(I),XS(a)
- Vars
- R(f);N_GUARD,XP(H)::QAB(F)
- S(a);N_GUARD,XB(A)::QAR(F)+S(I)
- S(a);OGATE,XS(I)::QAR1(F),XS(a)
- P(b);OGATEB::QAB(F)
- R(f);N_GUARD::R1(E),XS(c)
- S(a);N_GUARD::R(B)
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