MESON Chess Problem Database

Problem Display
PID: 186108 (Q7/B2N2p1/2rPp3/3k1N2/5P2/n2p1P2/1R1Pn2K/2rb4 w - - 0 1)

Matzinger, Fritz

Basler Nachrichten, 1923

Q7/B2N2p1/2rPp3/3k1N2/5P2/n2p1P2/1R1Pn2K/2rb4

#2

10 + 9

15601 Albrecht-Leiss-Degener Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Se3#
      • 2.Qxc6#
    • 1...Rc5
      • 2.Sb6#
    • 1...Sc4
      • 2.Rb5#
    • 1...e5
      • 2.Qg8#
  • Tries
    • 1.Se7+?
      • 1...Kc4
        • 2.Se5#
        • 2.Qxc6#
      • 1...Kxd6!
    • 1.Sf6+?
      • 1...Kc4
        • 2.Se3#
        • 2.Qxc6#
      • 1...gxf6!
    • 1.Rb5+?
      • 1...Kc4
        • 2.Qxc6#
      • 1...Rc5
        • 2.Sb6#
        • 2.Rxc5#
      • 1...Sxb5!
  • Keys
    • 1.Bc5!
      • threat
        • 2.Se3#
      • 1...Kc4
        • 2.Se3#
      • 1...Rxc5
        • 2.Sb6#
      • 1...exf5
        • 2.Qg8#
      • 1...e5
        • 2.Qg8#
      • 1...Sc2
        • 2.Qa2#
      • 1...Sc4
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(a);SBLOCK::S(I)
    • S(d);N_GUARD,SBLOCK,S_CUTR(a)::R(A)
    • P(h);OGATEB::QAB(J)
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • K(f);N_SPINR(g),P-FLIGHT,XP(G)
    • Try
      • S(I);CHECK
      • Refutation
        • P(i);XS(I)
    • Try
      • R(A);CHECK
      • Vars
        • K(f);N_SPINR(g),S_FLIGHT::QAR2(J),XR(g)
      • Refutation
        • S(d);XR(A)
  • Actual
    • B(H);
    • Threat
      • S(F)
    • Vars
      • K(f);N_SPINR(g),S_FLIGHT::S(F)
      • R(a);SBLOCK,XB(H)::S(I)
      • P(h);OGATEB,XS(F)::QAB(J)
      • P(h);OGATEB::QAB(J)
      • S(d);OGATE::QAB(J)
      • S(d);SBLOCK::S(F)
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