MESON Chess Problem Database

Problem Display
PID: 106237 (b2K4/pkBR4/qn6/pr1RN3/N7/8/1Q6/8 w - - 0 1)

Mlynka, Karol

Praca, 1995

b2K4/pkBR4/qn6/pr1RN3/N7/8/1Q6/8

#2

7 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb2
      • 2.Sc5#
    • 1...Rb3
      • 2.Sc5#
    • 1...Rb4
      • 2.Sc5#
    • 1...Rc5
      • 2.Sxc5#
    • 1...Rxd5
      • 2.Bd6#
    • 1...Sc4
      • 2.Sc5#
      • 2.Bd6#
    • 1...Sxd5
      • 2.Sc5#
    • 1...Sc8
      • 2.Sc5#
      • 2.Bd6#
  • Keys
    • 1.Qg2!
      • threat
        • 2.Rxb5#
      • 1...Rxd5
        • 2.Sc5#
      • 1...Sxd5
        • 2.Bd6#
      • 1...Rb1
        • 2.Sc5#
        • 2.Rb5#
      • 1...Rb2
        • 2.Sc5#
      • 1...Rb3
        • 2.Sc5#
      • 1...Rb4
        • 2.Sc5#
      • 1...Rc5
        • 2.Sxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • R(b);N_GUARD,XQ(A)::S(B)
    • R(b);N_GUARD::S(B)
    • R(b);N_GUARD,P_SPINS(d)::S(B),XR(b)
    • R(b);P_PINR(F),P_SPINS(d),XR(C)::R(F)+B(E)
    • S(d);P_SPINR(b),XR(C)::S(B)
  • Actual
    • Q(A);
    • Threat
      • QAB(A)+R(C),XR(b)
    • Vars
      • R(b);N_GUARD,P_PINR(F),P_SPINR(b),XR(C)::S(B)
      • S(d);N_GUARD,P_SPINS(d),XR(C)::R(F)+B(E)
      • R(b);N_GUARD::S(B)
      • R(b);N_GUARD::S(B),XR(b)
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