MESON Chess Problem Database

Problem Display
PID: 233507 (B2r4/2b1N3/6pQ/1RP3N1/2pk1n2/B1p3R1/3pp2K/3b4 w - - 0 1)

Supp, Walter

Freie Presse, 1996

B2r4/2b1N3/6pQ/1RP3N1/2pk1n2/B1p3R1/3pp2K/3b4

#2

9 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qg7#
    • 1...Rd5
      • 2.Sc6#
    • 1...Ba5
      • 2.Qg7#
    • 1...Bb6
      • 2.Qg7#
    • 1...Sd3
      • 2.Sf3#
    • 1...Sd5
      • 2.Sc6#
  • Tries
    • 1.Se6+?
      • 1...Sxe6
        • 2.Qe3#
      • 1...Ke5!
    • 1.Bb2?
      • threat
        • 2.Bxc3#
      • 1...Ke5
        • 2.Qg7#
      • 1...Ba5
        • 2.Qg7#
      • 1...Sd3
        • 2.Sf3#
      • 1...Sd5
        • 2.Sc6#
      • 1...cxb2!
    • 1.Be4?
      • threat
        • 2.Sc6#
      • 1...Ke5
        • 2.Qg7#
      • 1...Rd6!
  • Keys
    • 1.Bb4!
      • threat
        • 2.Bxc3#
      • 1...Ke5
        • 2.Qg7#
      • 1...Ba5
        • 2.Qg7#
      • 1...Sd3
        • 2.Sf3#
      • 1...Sd5
        • 2.Sc6#
      • 1...c2
        • 2.Bc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • K(f);S_FLIGHT::QAB(G)
    • R(j);SBLOCK::S(H)
    • B(i);N_GUARD::QAB(G)
    • S(g);P_PINR(C),SBLOCK::S(F)
    • S(g);P_PINR(C),SBLOCK::S(H)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • S(g);OGATE,P_PINR(C),XS(F)::QAB1(G)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • B(B);P_PINP(d)
      • Threat
        • B(B),XP(d)
      • Vars
        • K(f);S_FLIGHT::QAB(G)
        • B(i);N_GUARD::QAB(G)
        • S(g);P_PINR(C),SBLOCK::S(F)
        • S(g);P_PINR(C),SBLOCK::S(H)
      • Refutation
        • P(d);N_SPINP(d),XB(B)
    • Try
      • B(I);
      • Threat
        • S(H)
      • Vars
        • K(f);S_FLIGHT::QAB(G)
      • Refutation
        • R(j);
  • Actual
    • B(B);
    • Threat
      • B(B),XP(d)
    • Vars
      • K(f);S_FLIGHT::QAB(G)
      • B(i);N_GUARD::QAB(G)
      • S(g);P_PINR(C),SBLOCK::S(F)
      • S(g);P_PINR(C),SBLOCK::S(H)
      • P(d);::B(B)
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