MESON Chess Problem Database

Problem Display
PID: 258082 (1R4r1/8/1Bp5/5p2/p4q2/NkP1Pp2/1P1R1Q2/KNb5 w - - 0 1)

Mosiashvili, Givi

1st HM., Problemist Ukraini, 2017

1R4r1/8/1Bp5/5p2/p4q2/NkP1Pp2/1P1R1Q2/KNb5

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qg5
      • 2.Bd8#
    • 1...Qh6
      • 2.Bd8#
    • 1...Bxb2+
      • 2.Rxb2#
    • 1...Bxd2
      • 2.Sxd2#
  • Tries
    • 1.Bc7+?
      • 1...Qb4
        • 2.Rxb4#
      • 1...Rxb8!
    • 1.Bd8+?
      • 1...Qb4
        • 2.Rxb4#
      • 1...Qxb8!
    • 1.Rd6?
      • threat
        • 2.Qc2#
      • 1...Bxb2+
        • 2.Qxb2#
      • 1...Qh2
        • 2.Bd8#
      • 1...Rg2
        • 2.Bd4#
      • 1...Bd2
        • 2.Sxd2#
      • 1...Qe4!
    • 1.Rdd8?
      • threat
        • 2.Qc2#
      • 1...Bxb2+
        • 2.Qxb2#
      • 1...Qh2
        • 2.Bc7#
      • 1...Qe4
        • 2.Bd4#
      • 1...Bd2
        • 2.Sxd2#
      • 1...Rg2!
  • Keys
    • 1.Rd4!
      • threat
        • 2.Qc2#
      • 1...Bxb2+
        • 2.Qxb2#
      • 1...Qh2
        • 2.Rb4#
      • 1...Qe4
        • 2.Bd8#
      • 1...Rg2
        • 2.Bc7#
      • 1...Bd2
        • 2.Sxd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • Q(e);N_GUARD::R(J)+B(I)
    • B(a);CHECK,OGATE,XP(C)::R1(D),XB(a)
    • B(a);XR(D)::S(B),XB(a)
  • Tries
    • Try
      • B(I);CHECK
      • Vars
        • Q(e);N_GUARD,P_SPINQ(e)::R1(J),XQ(e)
      • Refutation
        • R(h);XR(J)
    • Try
      • B(I);CHECK
      • Vars
        • Q(e);N_GUARD,P_SPINQ(e)::R1(J),XQ(e)
      • Refutation
        • Q(e);XR(J)
    • Try
      • R(D);
      • Threat
        • QAB1(E)
      • Vars
        • B(a);CHECK,OGATE,XP(C)::QAR1(E),XB(a)
        • Q(e);N_GUARD::R(J)+B(I)
        • R(h);N_GUARD::R(J)+B(I)
        • B(a);N_GUARD::S(B),XB(a)
      • Refutation
        • Q(e);
    • Try
      • R(D);
      • Threat
        • QAB1(E)
      • Vars
        • B(a);CHECK,OGATE,XP(C)::QAR1(E),XB(a)
        • Q(e);N_GUARD::R(J)+B(I)
        • B(a);N_GUARD::S(B),XB(a)
      • Refutation
        • R(h);
  • Actual
    • R(D);
    • Threat
      • QAB1(E)
    • Vars
      • B(a);CHECK,OGATE,XP(C)::QAR1(E),XB(a)
      • Q(e);N_GUARD::R1(D)
      • Q(e);N_GUARD::R(J)+B(I)
      • R(h);N_GUARD::R(J)+B(I)
      • B(a);N_GUARD::S(B),XB(a)
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