MESON Chess Problem Database

Problem Display
PID: 228025 (1b5q/1p6/4B3/8/3pkPR1/3R4/3Qb1N1/K5n1 w - - 0 1)

Baumgarten, Ernst

Freie Presse, 1974

1b5q/1p6/4B3/8/3pkPR1/3R4/3Qb1N1/K5n1

#2

7 + 7

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sf3
      • 2.Qxe2#
    • 1...Sh3
      • 2.Qxe2#
  • Tries
    • 1.Rxd4+?
      • 1...Kf3
        • 2.Qe3#
      • 1...Qxd4+!
  • Keys
    • 1.Qb4!
      • threat
        • 2.Re3#
      • 1...Kxd3
        • 2.Bf5#
      • 1...Bxd3
        • 2.Qxb7#
      • 1...Qh3
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(a);N_GUARD::QAR2(B),XB(b)
  • Tries
    • Try
      • R(D);CHECK,P_SPINR(D),XP(c)
      • Vars
        • K(d);S_FLIGHT::QAR1(B)
      • Refutation
        • Q(g);CHECK,XR(D)
  • Actual
    • Q(B);P_PINP(c)
    • Threat
      • R1(D)
    • Vars
      • K(d);N_SPINP(c),S_FLIGHT,XR(D)::B(G)
      • B(b);SBLOCK,XR(D)::QAB(B),XP(e)
      • Q(g);N_GUARD::QAR1(B),XP(c)
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