MESON Chess Problem Database

Problem Display
PID: 248427 (nQ2N1B1/r1Rbk1P1/2p1pN2/2n1R1b1/2P5/2Bp2pK/4r1P1/8 w - - 0 1)

Senkus, Raimondas

Comm., Novi Sad Olympic Ty., 1990

nQ2N1B1/r1Rbk1P1/2p1pN2/2n1R1b1/2P5/2Bp2pK/4r1P1/8

#2

11 + 11

14867 BCPS Library 2021
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Se4
      • 2.Rxe6#
    • 1...Sb7
      • 2.Rxd7#
  • Tries
    • 1.Bb4?
      • threat
        • 2.Bxc5#
      • 1...Ra5
        • 2.Rxd7#
      • 1...Be3
        • 2.Rxe6#
      • 1...Rxe5!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Qf8#
      • 1...Kxd6
        • 2.Rxd7#
      • 1...Kxf6
        • 2.Rxe6#

Anticipated by 11802(1972)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • S(d);N_GUARD,S_CUTR(a)::R1(E),XP(g)
    • S(d);N_GUARD,S_CUTR(h)::R1(G),XB(i)
  • Tries
    • Try
      • B(B);P_PINS(d)
      • Threat
        • B(B),XS(d)
      • Vars
        • R(h);N_GUARD::R1(G),XB(i)
        • B(e);S_CUTR(a)::R1(E),XP(g)
      • Refutation
        • R(a);N_SPINP(g),XR(E)
  • Actual
    • S(J);
    • Threat
      • QAB1(I)
    • Vars
      • K(j);N_SPINB(i),N_SPINP(g),S_FLIGHT,XS(J)::QAB(I)+R(G),DCHECK,XB(i)
      • K(j);N_SPINB(i),N_SPINP(g),S_FLIGHT,XS(F)::B(B)+R(E),DCHECK,XP(g)
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