MESON Chess Problem Database
Problem Display
PID: 212985 (8/4Kp1q/3ppp2/QNp1k3/2PR1pP1/3p2B1/1P4Nb/3b4 w - - 0 1)
Atayants, Grigory Sergeevich
64 Shakhmatnoe obozrenie, 2020
#2
9 + 11
SOLUTION
- SOUND
- Sets
- 1...Bg1
- 2.Bxf4#
- 1...cxd4
- 2.Sxd6#
- 1...d5
- 2.Qc7#
- 1...Bg1
- Tries
- 1.Sxd6?
- threat
- 2.Qxc5#
- 1...Kxd4
- 2.Qc3#
- 1...Qe4
- 2.Rxe4#
- 1...Bf3!
- threat
- 1.Qe1+?
- 1...Qe4
- 2.Rxe4#
- 2.Qxe4#
- 1...Be2!
- 1...Qe4
- 1.Qc3?
- threat
- 2.Rxf4#
- 1...fxg3
- 2.Rf4#
- 1...cxd4
- 2.Qxd4#
- 1...Qe4
- 2.Rd5#
- 1...Bg1
- 2.Bxf4#
- 1...d5!
- threat
- 1.Qb6?
- threat
- 2.Qxd6#
- 1...cxd4
- 2.Qxd4#
- 1...d5
- 2.Qc7#
- 2.Qd6#
- 2.Qb8#
- 1...Bxg4!
- threat
- 1.Sxd6?
- Keys
- 1.Rxf4!
- threat
- 2.Qc3#
- 1...Qe4
- 2.Rf5#
- 1...Bg1
- 2.Rd4#
- 1...d5
- 2.Qc7#
- threat
- 1.Rxf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- B(b);N_GUARD::B(C),XP(d)
- P(e);SBLOCK,XR(E)::QAR(G)+S(H),XP(g)
- P(g);OGATEB::QAB(G)
- Tries
- Try
- S(H);XP(g)
- Threat
- QAR2(G),XP(e)
- Vars
- K(f);N_SPINP(d),OGATEB,S_FLIGHT,XR(E)::QAB1(G)
- Q(k);N_GUARD::R1(E),XQ(k)
- Refutation
- B(a);
- Try
- Q(G);CHECK
- Refutation
- B(a);P_SPINB(a)
- Try
- Q(G);
- Threat
- QAB(G)+R(E),XP(d)
- Vars
- P(d);N_SPINP(d),XB(C)::QAB(G)+R(E)
- P(e);N_SPINP(d),OGATE,P_SPINP(e),XR(E)::QAB1(G),XP(e)
- Q(k);SBLOCK::QAB(G)+R(E),DCHECK
- B(b);N_GUARD::B(C),XP(d)
- Refutation
- P(g);
- Try
- Q(G);
- Threat
- QAB1(G),XP(g)
- Vars
- P(e);OGATE,XR(E)::QAB1(G),XP(e)
- Refutation
- B(a);XP(F)
- Try
- Actual
- R(E);XP(d)
- Threat
- QAB(G)
- Vars
- Q(k);SBLOCK::B(C)+R(E),DCHECK
- B(b);N_GUARD::B(C)+R(E)
- P(g);OGATEB::QAB(G)
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