MESON Chess Problem Database

Problem Display
PID: 150176 (2nN2B1/R1p1kP2/4P1RK/Q1b5/3P3N/4B3/8/8 w - - 0 1)

Abramenko, Sergey Petrovich

SuperProblem TT, 2012

2nN2B1/R1p1kP2/4P1RK/Q1b5/3P3N/4B3/8/8

#2

11 + 4

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Qxc5#
    • 1...Kxd8
      • 2.Qxc7#
  • Tries
    • 1.Kg7?
      • threat
        • 2.Qxc7#
        • 2.f8Q#
      • 1...Kd6
        • 2.Qxc5#
      • 1...Kxd8
        • 2.Qxc7#
      • 1...Bb6
        • 2.f8Q#
      • 1...Bd6
        • 2.Sc6#
        • 2.Bg5#
        • 2.Qg5#
        • 2.f8Q#
      • 1...Sb6
        • 2.f8Q#
      • 1...Bxd4+!
    • 1.Sf5+?
      • 1...Kxd8
        • 2.Qxc7#
      • 1...Kf8!
    • 1.Sc6+?
      • 1...Kd6
        • 2.Qxc5#
      • 1...Kf8!
    • 1.Bg5+?
      • 1...Kd6
        • 2.Qxc5#
      • 1...Kf8!
    • 1.Rxc7+?
      • 1...Kd6
        • 2.Rd7#
        • 2.Qxc5#
      • 1...Kxd8
        • 2.Rd7#
      • 1...Kf8!
    • 1.Qxc5+?
      • 1...Kxd8
        • 2.Qf8#
        • 2.Qxc7#
        • 2.f8Q#
        • 2.f8R#
      • 1...Sd6!
  • Keys
    • 1.Rf6!
      • threat
        • 2.f8Q#
      • 1...Kd6
        • 2.Qxc5#
      • 1...Kxf6
        • 2.Bg5#
      • 1...Kxd8
        • 2.Qxc7#
      • 1...Kf8
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINP(b),S_FLIGHT::QAB1(D),XB(a)
    • K(c);S_FLIGHT,XS(J)::QAB1(D),XP(b)
  • Tries
    • Try
      • K(G);S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • K(c);N_SPINP(b),S_FLIGHT::QAB1(D),XB(a)
        • K(c);S_FLIGHT,XS(J)::QAB1(D),XP(b)
        • B(a);::P=Q
        • S(d);::P=Q
      • Refutation
        • B(a);CHECK,XP(B)
    • Try
      • S(C);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(J)::QAB1(D),XP(b)
      • Refutation
        • K(c);N_SPINP(b),S_FLIGHT
    • Try
      • S(J);CHECK
      • Vars
        • K(c);N_SPINP(b),S_FLIGHT::QAB1(D),XB(a)
      • Refutation
        • K(c);N_SPINP(b),S_FLIGHT
    • Try
      • B(A);CHECK
      • Vars
        • K(c);N_SPINP(b),S_FLIGHT::QAB1(D),XB(a)
      • Refutation
        • K(c);N_SPINP(b),S_FLIGHT
    • Try
      • R(H);CHECK,XP(b)
      • Vars
        • K(c);S_FLIGHT,XS(J)::QAB(D)+R(H),DCHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(D);CHECK,XB(a)
      • Refutation
        • S(d);P_SPINS(d)
  • Actual
    • R(F);
    • Threat
      • P=Q
    • Vars
      • K(c);N_SPINP(b),S_FLIGHT::QAB1(D),XB(a)
      • K(c);N_SPINP(b),OGATEB,S_FLIGHT,XR(F)::B(A)
      • K(c);S_FLIGHT,XS(J)::QAB1(D),XP(b)
      • K(c);N_SPINP(b),S_FLIGHT::S(C)
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