MESON Chess Problem Database

Problem Display
PID: 170126 (b1Br1Q1N/1nR3pp/3PN3/p1ppk1P1/7r/5P1n/3R4/b1B2K2 w - - 0 1)

Schonholzer, Andreas

Tages-Anzeiger, 1972

b1Br1Q1N/1nR3pp/3PN3/p1ppk1P1/7r/5P1n/3R4/b1B2K2

#2

11 + 12

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rh5
      • 2.Re2#
    • 1...Rh6
      • 2.Re2#
    • 1...h5
      • 2.Sg6#
    • 1...h6
      • 2.Sg6#
  • Tries
    • 1.Qxg7+?
      • 1...Kxd6
        • 2.Sf7#
      • 1...Kf5!
    • 1.Qf5+?
      • 1...Kxd6
        • 2.Sf7#
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...Kxf5!
    • 1.Qf6+?
      • 1...Kxd6
        • 2.Sf7#
      • 1...gxf6!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Rxd5#
      • 1...Rxf4
        • 2.Qe7#
      • 1...Rxd6
        • 2.Qf5#
      • 1...Sxf4
        • 2.Sf7#
      • 1...Sxd6
        • 2.Re7#
      • 1...Bd4
        • 2.Sd3#
      • 1...d4
        • 2.Re2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 4
  • Sets
    • R(c);N_GUARD::R(C)
    • P(j);N_GUARD::S(K)
  • Tries
    • Try
      • Q(J);CHECK,XP(i)
      • Vars
        • K(g);P_SPINP(f),S_FLIGHT,XP(F)::S(K)
      • Refutation
        • K(g);P-FLIGHT
    • Try
      • Q(J);CHECK
      • Refutation
        • K(g);P-FLIGHT,XQ(J)
    • Try
      • Q(J);CHECK
      • Vars
        • K(g);P_SPINP(f),S_FLIGHT,XP(F)::S(K)
      • Refutation
        • P(i);XQ(J)
  • Actual
    • S(G);
    • Threat
      • R1(C),XP(f)
    • Vars
      • R(c);P_PINP(D),SBLOCK,XS(G)::QAR2(J)
      • R(l);SBLOCK,XP(F)::QAR1(J)
      • S(b);SBLOCK,XS(G)::S(K)
      • S(h);SBLOCK,XP(F)::R(H)
      • B(a);SBLOCK::S(G)
      • P(f);SBLOCK::R(C)
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