MESON Chess Problem Database

Problem Display
PID: 149800 (4Q3/3B3b/1K1p4/7R/1k3r1R/1p1p4/1P5b/6r1 w - - 0 1)

Zepler, Erich Ernest

Die Schwalbe, 1933

4Q3/3B3b/1K1p4/7R/1k3r1R/1p1p4/1P5b/6r1

#2

6 + 8

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Rxd4#
  • Tries
    • 1.Bh3?
      • threat
        • 2.Qb5#
      • 1...Kc4
        • 2.Qa4#
      • 1...Rg5!
    • 1.Bc8?
      • threat
        • 2.Qb5#
      • 1...Kc4
        • 2.Qa4#
      • 1...Rg5!
    • 1.Rxf4+?
      • 1...Be4
        • 2.Rxe4#
        • 2.Qxe4#
      • 1...Bxf4!
    • 1.Rb5+?
      • 1...Ka4
        • 2.Qa8#
      • 1...Kc4!
    • 1.Qe5?
      • threat
        • 2.Qc3#
        • 2.Qb5#
      • 1...Kc4
        • 2.Qc3#
      • 1...Rg5
        • 2.Qc3#
      • 1...Rc1
        • 2.Qb5#
      • 1...Rd4
        • 2.Rxd4#
        • 2.Qxd4#
        • 2.Qb5#
      • 1...d5
        • 2.Qc3#
      • 1...dxe5!
    • 1.Qa8?
      • threat
        • 2.Qa4#
      • 1...Kc4
        • 2.Qa4#
      • 1...Ra1!
    • 1.Qc8?
      • threat
        • 2.Qc3#
      • 1...Rc4
        • 2.Rxc4#
        • 2.Qxc4#
      • 1...Rc1!
  • Keys
    • 1.Bg4!
      • threat
        • 2.Qb5#
      • 1...Kc4
        • 2.Qa4#
      • 1...Rf5
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(f);OGATE::R(B),XR(f)
  • Tries
    • Try
      • B(E);
      • Threat
        • QAR1(F)
      • Vars
        • K(e);P-FLIGHT::QAR2(F)
      • Refutation
        • R(a);
    • Try
      • B(E);
      • Threat
        • QAR1(F)
      • Vars
        • K(e);P-FLIGHT::QAR2(F)
      • Refutation
        • R(a);
    • Try
      • R(B);CHECK,XR(f)
      • Refutation
        • B(b);XR(B)
    • Try
      • R(C);CHECK
      • Vars
        • K(e);P-FLIGHT::QAR(F)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Vars
        • K(e);P-FLIGHT::QAR1(F)
        • R(a);::QAB1(F)
        • R(a);::QAR1(F)
        • P(g);::QAB1(F)
      • Refutation
        • P(g);XQ(F)
    • Try
      • Q(F);
      • Threat
        • QAR1(F)
      • Vars
        • K(e);P-FLIGHT::QAR2(F)
      • Refutation
        • R(a);
    • Try
      • Q(F);
      • Threat
        • QAB1(F)
      • Refutation
        • R(a);
  • Actual
    • B(E);N_PINR(f)
    • Threat
      • QAR1(F)
    • Vars
      • K(e);P-FLIGHT::QAR2(F)
      • R(f);N_GUARD,S_CUTB(h)::QAR(F)
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