MESON Chess Problem Database

Problem Display
PID: 225739 (3B4/2P1p1R1/2p5/2p1k3/2P3B1/3P2N1/1P2P1P1/5K1Q w - - 0 1)

Rybarczyk, Henryk

Praca, 1997

3B4/2P1p1R1/2p5/2p1k3/2P3B1/3P2N1/1P2P1P1/5K1Q

#2

12 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Rxe7+?
      • 1...Kd4
        • 2.Sf5#
        • 2.Re4#
        • 2.Qg1#
        • 2.Qh8#
      • 1...Kd6
        • 2.Se4#
        • 2.Sf5#
        • 2.Qh6#
        • 2.c8S#
      • 1...Kf6
        • 2.Qh6#
      • 1...Kf4!
    • 1.Qh6?
      • 1...Kd4
        • 2.Qf4#
      • 1...e6!
  • Keys
    • 1.Qh2!
      • 1...Kd4
        • 2.Sf5#
      • 1...Kf4
        • 2.Sf5#
      • 1...Kd6
        • 2.Se4#
      • 1...Kf6
        • 2.Sh5#
      • 1...e6
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(K);CHECK,XP(d)
      • Vars
        • K(b);S_FLIGHT::QAR2(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(b);S_FLIGHT::QAR2(B)
      • Refutation
        • P(d);
  • Actual
    • Q(B);
    • Vars
      • K(b);S_FLIGHT::S(G)
      • K(b);S_FLIGHT::QAB(B)+S(G)
      • K(b);S_FLIGHT::QAB(B)+S(G),DCHECK
      • K(b);P_SPINP(d),S_FLIGHT::S(G)
      • P(d);SBLOCK::QAB(B)+S(G)
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