MESON Chess Problem Database

Problem Display
PID: 246682 (4Q3/4p3/2p1pB2/N2P1PP1/4k3/4P1K1/8/2N1R3 w - - 0 1)

Murashev, Pavel Aleksandrovich

Moscow Ty., 2019

4Q3/4p3/2p1pB2/N2P1PP1/4k3/4P1K1/8/2N1R3

#2

10 + 4

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd5
      • 2.Qxc6#
    • 1...Kxf5
      • 2.e4#
    • 1...exf6
      • 2.Qxe6#
  • Tries
    • 1.Qxc6?
      • threat
        • 2.Qxe6#
      • 1...Kxf5
        • 2.Qc2#
      • 1...exd5
        • 2.Qc2#
        • 2.Qe6#
      • 1...exf5
        • 2.Qc4#
        • 2.Qe6#
        • 2.d6#
      • 1...e5!
    • 1.Qb8?
      • threat
        • 2.Qe5#
      • 1...Kxd5
        • 2.Qe5#
      • 1...Kxf5
        • 2.Qb1#
      • 1...e5
        • 2.Qxe5#
      • 1...exf6!
  • Keys
    • 1.Qxe7!
      • threat
        • 2.Qxe6#
      • 1...Kxd5
        • 2.e4#
      • 1...Kxf5
        • 2.Qh7#
      • 1...e5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(a);OGATEB,S_FLIGHT,XP(F)::QAB1(J),XP(b)
    • K(a);OGATE,S_FLIGHT,XP(G)::P(C)
    • P(d);OGATE,P_SPINP(c),XB(I)::QAR2(J),XP(c)
  • Tries
    • Try
      • Q(J);XP(b)
      • Threat
        • QAR2(J),XP(c)
      • Vars
        • K(a);S_FLIGHT,XP(G)::QAB(J)
      • Refutation
        • P(c);
    • Try
      • Q(J);
      • Threat
        • QAR1(J)
      • Vars
        • K(a);S_FLIGHT,XP(F)::QAR1(J)
        • K(a);S_FLIGHT,XP(G)::QAB(J)
        • P(c);::QAR1(J),XP(c)
      • Refutation
        • P(d);XB(I)
  • Actual
    • Q(J);P_PINP(c),XP(d)
    • Threat
      • QAR2(J),XP(c)
    • Vars
      • K(a);N_SPINP(c),OGATE,S_FLIGHT,XP(F)::P(C)
      • K(a);N_SPINP(c),OGATEB,S_FLIGHT,XP(G)::QAB(J)
      • P(c);OGATE::QAR1(J),XP(c)
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