MESON Chess Problem Database
Problem Display
PID: 180895 (8/1K1p2N1/1R1P1R2/bppkp3/3Pp2r/4P2N/8/n2Q1B2 w - - 0 1)
Labai, Zoltan
Sachmatija, 2018
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...cxd4
- 2.Rxb5#
- 1...c4
- 2.Rxb5#
- 1...exd4
- 2.Rf5#
- 1...cxd4
- Tries
- 1.Sf4+?
- 1...exf4
- 2.Rf5#
- 1...Rxf4!
- 1...exf4
- 1.Rxb5?
- threat
- 2.Rxc5#
- 1...exd4
- 2.Qxd4#
- 1...Bb6
- 2.dxc5#
- 1...Sb3
- 2.Qxb3#
- 1...Bb4!
- threat
- 1.Qb3+?
- 1...c4
- 2.Rxb5#
- 2.Qxb5#
- 1...Sxb3!
- 1...c4
- 1.Qh5?
- threat
- 2.Qf7#
- 2.Qxe5#
- 1...cxd4
- 2.Rxb5#
- 1...Rxh5!
- threat
- 1.dxc5+?
- 1...Kxc5
- 2.Rxb5#
- 1...Bd2!
- 1...Kxc5
- 1.dxe5+?
- 1...Kxe5
- 2.Rf5#
- 1...Bd2!
- 1...Kxe5
- 1.Sf4+?
- Keys
- 1.Rf5!
- threat
- 2.Rxe5#
- 1...Bxb6
- 2.dxe5#
- 1...cxd4
- 2.Qxd4#
- 1...Rh5
- 2.Sf4#
- threat
- 1.Rf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- P(f);OGATEB,P_SPINP(f),XP(E)::R(F),XP(e)
- P(f);OGATEB::R(F),XP(e)
- P(h);OGATEB,P_SPINP(h),XP(E)::R(H)
- Tries
- Try
- S(D);CHECK
- Vars
- P(h);S_CUTR(c),XS(D)::R(H)
- Refutation
- R(c);XS(D)
- Try
- R(F);P_PINP(f),XP(e)
- Threat
- R1(F),XP(f)
- Vars
- P(h);N_SPINP(f),OGATE,P_SPINP(h),XP(E)::QAR1(A),XP(h)
- B(d);N_GUARD::QAR(A)+P(E),XP(f)
- S(a);N_GUARD::QAB(A),XS(a)
- Refutation
- B(d);
- Try
- Q(A);CHECK
- Refutation
- S(a);XQ(A)
- Try
- Q(A);P_PINP(h)
- Threat
- DUALS(2)
- Vars
- P(f);OGATEB,XP(E)::R(F),XP(e)
- Refutation
- R(c);N_SPINP(h),XQ(A)
- Try
- P(E);CHECK,XP(f)
- Vars
- K(g);P-FLIGHT,XP(E)::R1(F),XP(e)
- Refutation
- B(d);P_SPINB(d)
- Try
- P(E);CHECK,XP(h)
- Vars
- K(g);P-FLIGHT,XP(E)::R1(H)
- Refutation
- B(d);P_SPINB(d)
- Try
- Actual
- R(H);P_PINP(h)
- Threat
- R1(H),XP(h)
- Vars
- B(d);N_GUARD,XR(F)::QAR(A)+P(E),XP(h)
- P(f);N_SPINP(h),OGATE,P_SPINP(f),XP(E)::QAR1(A),XP(f)
- R(c);N_GUARD::S(D)
Developed and maintained by Brian Stephenson.
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