MESON Chess Problem Database

Problem Display
PID: 255150 (6N1/1R3Ppk/6N1/8/3P3K/1rP2P2/6Q1/8 w - - 0 1)

Matrenin, Mikhail Vasilevich

Zadachi i Etyudi, 2006

6N1/1R3Ppk/6N1/8/3P3K/1rP2P2/6Q1/8

#2

9 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Kg5?
      • threat
        • 2.Qh1#
        • 2.Qh3#
        • 2.Qh2#
      • 1...Rb1
        • 2.Qh3#
        • 2.Qh2#
      • 1...Rb2
        • 2.Qh3#
      • 1...Rb5+!
    • 1.Sf6+?
      • 1...Kh6
        • 2.Qg5#
      • 1...gxf6!
    • 1.Qh3?
      • threat
        • 2.Kg5#
      • 1...Kxg6
        • 2.f8S#
      • 1...Rb5!
    • 1.f8B?
      • threat
        • 2.Rxg7#
      • 1...Kxg8
        • 2.Rxg7#
      • 1...Rxb7!
  • Keys
    • 1.Qa2!
      • 1...Kxg6
        • 2.Qc2#
      • 1...Rxc3
        • 2.f8S#
      • 1...Rxb7
        • 2.f8S#
      • 1...Rb1
        • 2.f8S#
      • 1...Rb2
        • 2.f8S#
      • 1...Ra3
        • 2.f8S#
      • 1...Rb4
        • 2.f8S#
      • 1...Rb5
        • 2.f8S#
      • 1...Rb6
        • 2.f8S#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Threat
        • DUALS(3)
      • Vars
        • R(a);::QAR(A)
      • Refutation
        • R(a);CHECK
    • Try
      • S(I);CHECK
      • Vars
        • K(c);P-FLIGHT,S_CUTP(b)::QAB1(A)
      • Refutation
        • P(b);XS(I)
    • Try
      • Q(A);
      • Threat
        • QAR(A)+K(E)
      • Vars
        • K(c);N_GUARD,S_FLIGHT,XS(F)::P=S
      • Refutation
        • R(a);
    • Try
      • P(H);P_PINP(b)
      • Threat
        • R1(G),XP(b)
      • Vars
        • K(c);N_SPINP(b),S_FLIGHT,XS(I)::R1(G),XP(b)
      • Refutation
        • R(a);N_SPINP(b),XR(G)
  • Actual
    • Q(A);
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(F)::QAB(A)
      • R(a);XP(B)::P=S
      • R(a);XR(G)::P=S
      • R(a);::P=S
      • R(a);P_PINP(D)::P=S
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