MESON Chess Problem Database

Problem Display
PID: 228026 (5RN1/2B2qr1/8/3pP2P/5kPP/2brp3/K2nP1Q1/8 w - - 0 1)

Baumgarten, Ernst

Freie Presse, 1974

5RN1/2B2qr1/8/3pP2P/5kPP/2brp3/K2nP1Q1/8

#2

10 + 8

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qf5
      • 2.Rxf5#
    • 1...Qf6
      • 2.Rxf6#
    • 1...Rd4
      • 2.e6#
    • 1...Rxg4
      • 2.Rxf7#
    • 1...Rxg8
      • 2.Rxf7#
    • 1...Sb1
      • 2.Qf3#
    • 1...Sf1
      • 2.Qf3#
    • 1...Sb3
      • 2.Qf3#
    • 1...Sf3
      • 2.Qxf3#
    • 1...Sc4
      • 2.Qf3#
    • 1...Se4
      • 2.Qf3#
    • 1...d4+
      • 2.e6#
  • Keys
    • 1.Sf6!
      • threat
        • 2.Qh2#
      • 1...d4+
        • 2.Sd5#
      • 1...Qxf6
        • 2.Rxf6#
      • 1...Rxg4
        • 2.Qxg4#
      • 1...Sf1
        • 2.Qf3#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Se4
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • Q(g);OGATE::R1(I),XQ(g)
    • Q(g);OGATE::R(I),XQ(g)
    • R(c);S_CUTB(b)::B(H)+P(F)
    • R(h);N_GUARD,XP(D)::R(I),XQ(g)
    • R(h);N_GUARD,XS(J)::R(I),XQ(g)
    • S(a);N_GUARD::QAR1(C)
    • S(a);N_GUARD::QAR1(C),XS(a)
    • P(f);CHECK,S_CUTB(b)::B(H)+P(F)
  • Actual
    • S(J);N_PINQ(g)
    • Threat
      • QAB(C)
    • Vars
      • P(f);CHECK,S_CUTR(c)::S(J)
      • Q(g);OGATE,P_SPINQ(g),XS(J)::R(I),XQ(g)
      • R(h);OGATE,XP(D)::QAR1(C),XR(h)
      • S(a);N_GUARD::QAR1(C)
      • S(a);N_GUARD::QAR1(C),XS(a)
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Developed and maintained by Brian Stephenson.
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