MESON Chess Problem Database

Problem Display
PID: 164634 (7n/2QB3K/8/3pP2N/R2pkNp1/8/4pPP1/1b6 w - - 0 1)

Sukhodolov, Nikolai

Zadachi i Etyudi, 2014

7n/2QB3K/8/3pP2N/R2pkNp1/8/4pPP1/1b6

#2

9 + 7

SOLUTION

  • SOUND
  • Tries
    • 1.Qc1?
      • threat
        • 2.Qe3#
      • 1...e1Q
        • 2.Qxe1#
      • 1...e1R
        • 2.Qxe1#
      • 1...Kxe5+!
    • 1.Qc3?
      • threat
        • 2.Qxd4#
        • 2.Qe3#
      • 1...e1Q
        • 2.Qxe1#
        • 2.Qxd4#
      • 1...e1R
        • 2.Qxe1#
        • 2.Qxd4#
      • 1...Bd3
        • 2.Qxd4#
      • 1...Kxe5+!
    • 1.Qc5?
      • threat
        • 2.Qxd4#
        • 2.Qxd5#
      • 1...Ba2
        • 2.Qxd4#
      • 1...Kxe5+!
    • 1.e6?
      • threat
        • 2.Sg3#
      • 1...g3
        • 2.Sxg3#
      • 1...Kf5!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sc5#
      • 1...Kd3
        • 2.Rxd4#
      • 1...Kf5
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(G);
      • Threat
        • QAR1(G)
      • Vars
        • P(b);OGATEB::QAR(G),XQ(b)
        • P(b);OGATEB::QAR(G),XR(b)
      • Refutation
        • K(d);CHECK,N_SPINP(c),P-FLIGHT,XP(E)
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::QAR1(G),XP(c)
      • Refutation
        • K(d);CHECK,P-FLIGHT,XP(E)
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::QAR1(G),XP(c)
      • Refutation
        • K(d);CHECK,N_SPINP(c),P-FLIGHT,P_SPINP(f),XP(E)
    • Try
      • P(E);
      • Threat
        • S(F)
      • Vars
        • P(e);::S(F),XP(e)
      • Refutation
        • K(d);N_SPINP(c),S_FLIGHT
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(d);N_SPINP(c),S_FLIGHT::R1(C),XP(c)
      • K(d);N_SPINP(c),S_FLIGHT::S(F)
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