MESON Chess Problem Database

Problem Display
PID: 109130 (Qr1rb3/Bnpp4/3P3R/p2kN1p1/P1N5/3PR3/B7/1Kn5 w - - 0 1)

Pape, Edouard

Teplitz-Schonauer Chess Club, 1937

Qr1rb3/Bnpp4/3P3R/p2kN1p1/P1N5/3PR3/B7/1Kn5

#2

11 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Se2
      • 2.Sb2#
      • 2.Sd2#
      • 2.Sa3#
      • 2.Sxa5#
    • 1...Sxd3
      • 2.Sb2#
      • 2.Sd2#
      • 2.Sa3#
      • 2.Sxa5#
    • 1...cxd6
      • 2.Rxd6#
  • Tries
    • 1.Sb2+?
      • 1...Sb3
        • 2.Bxb3#
      • 1...Sxa2!
    • 1.Sd2+?
      • 1...Sb3
        • 2.Bxb3#
      • 1...Sxa2!
    • 1.Sa3+?
      • 1...Sb3
        • 2.Bxb3#
      • 1...Sxa2!
    • 1.Sxa5+?
      • 1...Sb3
        • 2.Bxb3#
      • 1...Sxa2!
    • 1.Sb6+?
      • 1...Kc5
        • 2.Sd5#
      • 1...Kd4!
    • 1.Re4?
      • threat
        • 2.Se3#
        • 2.Rd4#
      • 1...Sxd3
        • 2.Sd2#
        • 2.Rd4#
      • 1...Se2
        • 2.Sb2#
        • 2.Sd2#
        • 2.Sa3#
        • 2.Se3#
        • 2.Sxa5#
      • 1...Sb3
        • 2.Se3#
      • 1...c5
        • 2.Se3#
        • 2.Sb6#
      • 1...Bg6!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Se7#
      • 1...Sc5+
        • 2.Sb6#
      • 1...Sxd6+
        • 2.Sb4#
      • 1...Kxc6
        • 2.Sxa5#
        • 2.Se5#
      • 1...dxc6
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(f);OGATE,XP(H)::R1(I),XP(f)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • S(a);N_GUARD,N_SPINS(e),P_SPINS(a)::B(B),XS(a)
      • Refutation
        • S(a);XB(B)
    • Try
      • S(F);CHECK
      • Vars
        • S(a);N_GUARD,N_SPINS(e),P_SPINS(a)::B(B),XS(a)
      • Refutation
        • S(a);XB(B)
    • Try
      • S(F);CHECK
      • Vars
        • S(a);N_GUARD,N_SPINS(e),P_SPINS(a)::B(B),XS(a)
      • Refutation
        • S(a);XB(B)
    • Try
      • S(F);CHECK,XP(b)
      • Vars
        • S(a);N_GUARD,N_SPINS(e),P_SPINS(a)::B(B),XS(a)
      • Refutation
        • S(a);XB(B)
    • Try
      • S(F);CHECK
      • Vars
        • K(c);N_SPINS(e),P-FLIGHT::B(J)+S(F)
      • Refutation
        • K(c);N_SPINS(e),P-FLIGHT
    • Try
      • R(D);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::S(F)
      • Refutation
        • B(j);
  • Actual
    • S(G);N_PINS(e)
    • Threat
      • S(G)
    • Vars
      • S(e);CHECK,SBLOCK::B(B)+S(F),DCHECK
      • S(e);CHECK,XP(H)::QAB(K)+S(G),DCHECK
      • P(g);SBLOCK,XS(G)::R1(D)
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