MESON Chess Problem Database

Problem Display
PID: 196348 (8/1p3Kn1/3B1P1p/2Pk2bR/1r6/3N3Q/1P3P2/1B1R4 w - - 0 1)

Muha, Boris

Suomen Shakki, 1984

8/1p3Kn1/3B1P1p/2Pk2bR/1r6/3N3Q/1P3P2/1B1R4

#2

11 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Sc1#
      • 2.Se1#
      • 2.Sxb4#
      • 2.Sf4#
    • 1...Rc4
      • 2.Sb4#
  • Tries
    • 1.Sf4+?
      • 1...Kc4
        • 2.Qd3#
      • 1...Kc6!
    • 1.Se5+?
      • 1...Rd4
        • 2.Qg2#
        • 2.Qh1#
        • 2.Qb3#
        • 2.Qf3#
      • 1...Bd2!
  • Keys
    • 1.Qf1!
      • threat
        • 2.Sxb4#
      • 1...Kc4
        • 2.Sc1#
      • 1...Kd4
        • 2.Sf4#
      • 1...Ke4
        • 2.Se1#
      • 1...Kc6
        • 2.Se5#
      • 1...Rxb2
        • 2.Sb4#
      • 1...Rd4
        • 2.Sb4#
      • 1...Rb3
        • 2.Sb4#
      • 1...Ra4
        • 2.Sb4#
      • 1...Rc4
        • 2.Sb4#
      • 1...Re4
        • 2.Sb4#
      • 1...Rf4
        • 2.Sb4#
      • 1...Rg4
        • 2.Sb4#
      • 1...Rh4
        • 2.Sb4#
      • 1...Rb5
        • 2.Sb4#
      • 1...Rb6
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 14
    • REMOVED MATES = 0
  • Sets
    • R(a);SBLOCK::R(B)+S(E),DCHECK
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(b);N_SPINB(c),S_FLIGHT::QAB1(F)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT
    • Try
      • S(E);CHECK,N_PINB(c)
      • Refutation
        • B(c);P_SPINB(c)
  • Actual
    • Q(F);
    • Threat
      • R(B)+S(E),DCHECK,XR(a)
    • Vars
      • K(b);N_SPINB(c),S_FLIGHT::QAB(F)+S(E)
      • K(b);N_SPINB(c),P-FLIGHT::R(B)+S(E)
      • K(b);N_SPINB(c),S_FLIGHT::B(A)+S(E)
      • K(b);N_SPINB(c),S_FLIGHT::S(E)
      • R(a);XP(C)::R(B)+S(E),DCHECK
      • R(a);::S(E)
      • R(a);::R(B)+S(E),DCHECK
      • R(a);P_PINP(J)::R(B)+S(E),DCHECK
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