MESON Chess Problem Database

Problem Display
PID: 233529 (5R1r/6Qp/pR1P4/4N3/2Pk1N2/3P4/2K3P1/b7 w - - 0 1)

Supp, Walter

Freie Presse, 1998

5R1r/6Qp/pR1P4/4N3/2Pk1N2/3P4/2K3P1/b7

#2

10 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Sg4#
    • 1...Kc5
      • 2.Sd7#
  • Tries
    • 1.Kd2?
      • threat
        • 2.Se6#
        • 2.Sd7#
      • 1...Kc5
        • 2.Sd7#
      • 1...Rxf8
        • 2.Se6#
      • 1...Rg8
        • 2.Se6#
      • 1...Bc3+!
    • 1.Se2+?
      • 1...Kc5
        • 2.Sd7#
        • 2.Qc7#
      • 1...Ke3!
    • 1.Sf3+?
      • 1...Kc5
        • 2.Qc7#
      • 1...Ke3!
    • 1.Sc6+?
      • 1...Ke3
        • 2.Qg3#
      • 1...Kc5!
    • 1.Rb5?
      • threat
        • 2.Sg4#
        • 2.Qa7#
      • 1...Ke3
        • 2.Sg4#
      • 1...Rxf8
        • 2.Qa7#
      • 1...Rg8
        • 2.Qa7#
      • 1...axb5!
    • 1.Qg3?
      • threat
        • 2.Se6#
      • 1...Kxe5
        • 2.Qe3#
        • 2.Qg7#
      • 1...Kc5!
  • Keys
    • 1.Qa7!
      • threat
        • 2.Rb5#
      • 1...Ke3
        • 2.Rb2#
      • 1...Kc5
        • 2.Se6#
      • 1...Kxe5
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::S(F)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • K(b);S_FLIGHT::S(F)
        • R(e);XR(J)::S(E)
        • R(e);::S(E)
      • Refutation
        • B(a);CHECK
    • Try
      • S(E);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR2(I)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR2(I)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(G);
      • Threat
        • DUALS(2)
      • Vars
        • K(b);S_FLIGHT::S(F)
        • R(e);XR(J)::QAB(I)
        • R(e);::QAB(I)
      • Refutation
        • P(c);XR(G)
    • Try
      • Q(I);
      • Threat
        • S(E)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(I);
    • Threat
      • QAB(I)+R(G)
    • Vars
      • K(b);S_FLIGHT::QAB(I)+R(G)
      • K(b);S_FLIGHT::S(E)
      • K(b);OGATEB,S_FLIGHT,XS(F)::QAB(I)
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