MESON Chess Problem Database

Problem Display
PID: 245971 (8/3pR3/2Nk4/4N3/3K4/8/4Q3/8 w - - 0 1)

Murashev, Pavel Aleksandrovich

Sem Shakhmatnikh not, 2014

8/3pR3/2Nk4/4N3/3K4/8/4Q3/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...dxc6
      • 2.Sc4#
      • 2.Sf7#
  • Tries
    • 1.Kc4?
      • 1...dxc6
        • 2.Sf7#
      • 1...Kc7!
    • 1.Qf1?
      • 1...dxc6
        • 2.Qf6#
      • 1...Kc7!
    • 1.Qf3?
      • 1...dxc6
        • 2.Qf6#
      • 1...Kc7!
    • 1.Qc4?
      • threat
        • 2.Rxd7#
      • 1...dxc6
        • 2.Rd7#
        • 2.Qe6#
        • 2.Qc5#
      • 1...Kc7!
    • 1.Qg4?
      • threat
        • 2.Rxd7#
        • 2.Qxd7#
      • 1...dxc6
        • 2.Rd7#
        • 2.Qe6#
        • 2.Qd7#
      • 1...Kc7!
    • 1.Qa6?
      • 1...Kc7
        • 2.Rxd7#
      • 1...dxc6!
    • 1.Qe1?
      • 1...dxc6
        • 2.Sc4#
        • 2.Sf7#
      • 1...Kc7!
    • 1.Qa2?
      • threat
        • 2.Rxd7#
      • 1...dxc6
        • 2.Rd7#
        • 2.Qe6#
      • 1...Kc7!
    • 1.Qb2?
      • threat
        • 2.Qb8#
      • 1...Kc7
        • 2.Qb8#
      • 1...dxc6!
    • 1.Qc2?
      • 1...dxc6
        • 2.Qc5#
      • 1...Kc7!
    • 1.Qf2?
      • 1...dxc6
        • 2.Qf6#
      • 1...Kc7!
    • 1.Qh2?
      • 1...dxc6
        • 2.Sg6#
      • 1...Kc7!
    • 1.Qe3?
      • 1...dxc6
        • 2.Sc4#
        • 2.Sf7#
      • 1...Kc7!
    • 1.Qe4?
      • 1...dxc6
        • 2.Sc4#
        • 2.Sf7#
      • 1...Kc7!
  • Keys
    • 1.Qb5!
      • threat
        • 2.Qb8#
      • 1...Kc7
        • 2.Qb8#
      • 1...dxc6
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • P(b);SBLOCK,XS(D)::S(C)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(b);XS(D)::QAR2(A)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(b);XS(D)::QAR2(A)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • R1(E),XP(b)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);P_SPINP(b),S_FLIGHT::R1(E),XP(b)
      • Refutation
        • P(b);P_SPINP(b),XS(D)
    • Try
      • Q(A);
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • R1(E),XP(b)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAB(A)
      • Vars
        • K(a);P_SPINP(b),S_FLIGHT::QAB1(A)
      • Refutation
        • P(b);XS(D)
    • Try
      • Q(A);
      • Vars
        • P(b);XS(D)::QAB1(A)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(b);XS(D)::QAR2(A)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(b);SBLOCK,XS(D)::QAB(A)+S(C)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • Q(A);
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • Q(A);
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAB(A)
    • Vars
      • K(a);P_SPINP(b),S_FLIGHT::QAB1(A)
      • P(b);XS(D)::QAB1(A)
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