MESON Chess Problem Database

Problem Display
PID: 246669 (2k1KN2/n2pR3/P7/4Q3/b5Bp/6r1/7B/8 w - - 0 1)

Mosiashvili, Givi

Moscow Ty., 2014

2k1KN2/n2pR3/P7/4Q3/b5Bp/6r1/7B/8

#2

7 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Qc7#
      • 2.Qb8#
    • 1...Rg2
      • 2.Qc7#
      • 2.Qb8#
    • 1...Ra3
      • 2.Qc7#
      • 2.Qb8#
    • 1...Rb3
      • 2.Qc7#
    • 1...Rc3
      • 2.Qb8#
    • 1...Rd3
      • 2.Qc7#
      • 2.Qb8#
    • 1...Re3
      • 2.Qc7#
      • 2.Qb8#
    • 1...Rf3
      • 2.Qc7#
      • 2.Qb8#
    • 1...Rh3
      • 2.Qc7#
      • 2.Qb8#
    • 1...Rxg4
      • 2.Qc7#
      • 2.Qb8#
    • 1...Bd1
      • 2.Bxd7#
    • 1...Bc2
      • 2.Bxd7#
    • 1...Bb3
      • 2.Bxd7#
    • 1...Sb5
      • 2.Bxd7#
    • 1...Sc6
      • 2.Bxd7#
  • Tries
    • 1.Bxg3?
      • threat
        • 2.Qc7#
        • 2.Qb8#
      • 1...Sb5
        • 2.Bxd7#
        • 2.Qb8#
      • 1...Sc6
        • 2.Bxd7#
        • 2.Qc7#
      • 1...hxg3!
    • 1.Rxd7?
      • threat
        • 2.Qc7#
      • 1...Bxd7+
        • 2.Bxd7#
      • 1...Rc3
        • 2.Qb8#
      • 1...Sb5
        • 2.Rd8#
      • 1...Re3!
    • 1.Qxg3?
      • threat
        • 2.Qc7#
        • 2.Qb8#
      • 1...Sb5
        • 2.Bxd7#
        • 2.Qb8#
      • 1...Sc6
        • 2.Bxd7#
        • 2.Qc7#
      • 1...hxg3!
  • Keys
    • 1.Sxd7!
      • threat
        • 2.Qb8#
      • 1...Bxd7+
        • 2.Bxd7#
      • 1...Rb3
        • 2.Qc7#
      • 1...Sc6
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • R(a);::QAR1(C)
    • B(b);N_GUARD::B(B),XP(e)
    • S(d);S_CUTB(b)::B(B),XP(e)
  • Tries
    • Try
      • B(A);XR(a)
      • Threat
        • DUALS(2)
      • Refutation
        • P(c);XB(A)
    • Try
      • R(E);P_SPINR(E),XP(e)
      • Threat
        • QAR1(C)
      • Vars
        • B(b);CHECK,OGATE,P_SPINB(b),XR(E)::B(B),XB(b)
        • R(a);::QAR1(C)
        • S(d);N_PINR(E)::B(B)+R(E),DCHECK
      • Refutation
        • R(a);P_PINQ(C)
    • Try
      • Q(C);XR(a)
      • Threat
        • DUALS(2)
      • Refutation
        • P(c);XQ(C)
  • Actual
    • S(G);P_SPINS(G),XP(e)
    • Threat
      • QAR1(C)
    • Vars
      • B(b);CHECK,OGATE,P_SPINB(b),XS(G)::B(B),XB(b)
      • R(a);::QAR1(C)
      • S(d);N_PINS(G)::B(B)+S(G),DCHECK
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