MESON Chess Problem Database

Problem Display
PID: 265555 (5b2/3R3r/1p1R1Q1B/1P2P3/8/1p3p2/1N1rp3/KBk1q3 w - - 0 1)

Mosiashvili, Givi

Kudesnik, 2022

5b2/3R3r/1p1R1Q1B/1P2P3/8/1p3p2/1N1rp3/KBk1q3

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qf2
      • 2.Bxd2#
    • 1...Qg3
      • 2.Bxd2#
    • 1...Qh4
      • 2.Bxd2#
    • 1...Qd1
      • 2.Sd3#
    • 1...Qf1
      • 2.Bxd2#
    • 1...Qg1
      • 2.Bxd2#
    • 1...Qh1
      • 2.Bxd2#
    • 1...Re7
      • 2.Rc6#
    • 1...Rh8
      • 2.Rc7#
    • 1...Be7
      • 2.Rc7#
    • 1...Bg7
      • 2.Rc6#
      • 2.Rc7#
  • Tries
    • 1.Rxd2?
      • threat
        • 2.Sd3#
        • 2.Rd1#
        • 2.Rc2#
      • 1...Qxd2
        • 2.Bxd2#
      • 1...Rxd7
        • 2.Rd1#
        • 2.Rc2#
      • 1...Bxh6
        • 2.Qc6#
      • 1...Qd1
        • 2.Sd3#
        • 2.Rxd1#
        • 2.Rc2#
      • 1...Rxh6!
    • 1.Qxf8?
      • threat
        • 2.Rc6#
        • 2.Qc8#
      • 1...Rxd7
        • 2.Rc6#
      • 1...Qf2
        • 2.Bxd2#
      • 1...Qh4
        • 2.Bxd2#
      • 1...Qd1
        • 2.Sd3#
      • 1...Qg1
        • 2.Bxd2#
      • 1...Rh8
        • 2.Rc6#
        • 2.Rc7#
      • 1...Rxh6!
  • Keys
    • 1.Qf4!
      • threat
        • 2.Qc4#
      • 1...Rxh6
        • 2.Rc7#
      • 1...Bxh6
        • 2.Rc6#
      • 1...Qh4
        • 2.Qxd2#
      • 1...Qd1
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • Q(b);N_GUARD::B(H),XR(c)
    • Q(b);SBLOCK::S(C)
    • R(h);S_CUTB(i)::R(F)
    • R(h);N_GUARD::R(I)
    • B(i);S_CUTR(h)::R(I)
  • Tries
    • Try
      • R(F);XR(c)
      • Threat
        • DUALS(3)
      • Vars
        • Q(b);OGATE,P_SPINQ(b),XR(F)::B(H),XQ(b)
        • B(i);N_GUARD,XB(H)::QAR(G)
      • Refutation
        • R(h);XB(H)
    • Try
      • Q(G);XB(i)
      • Threat
        • DUALS(2)
      • Vars
        • R(h);XR(I)::R(F)
        • Q(b);N_GUARD::B(H),XR(c)
        • Q(b);SBLOCK::S(C)
      • Refutation
        • R(h);N_SPINR(c),XB(H)
  • Actual
    • Q(G);
    • Threat
      • QAR(G)
    • Vars
      • R(h);N_GUARD,XB(H)::R(I)
      • B(i);N_GUARD,XB(H)::R(F)
      • Q(b);N_GUARD::QAB1(G),XR(c)
      • Q(b);SBLOCK::S(C)
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