MESON Chess Problem Database

Problem Display
PID: 216166 (8/2p5/1b6/1n1QK2b/3p2p1/3B2Pp/1P5k/5R1N w - - 0 1)

Hahnel, Peter

Deutsche Schachzeitung, 1996

8/2p5/1b6/1n1QK2b/3p2p1/3B2Pp/1P5k/5R1N

#2

7 + 8

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qf3?
      • threat
        • 2.Qe2#
        • 2.Qf2#
      • 1...Sc3
        • 2.Qf2#
      • 1...gxf3!
    • 1.Qf7?
      • threat
        • 2.Qf2#
      • 1...Kg2
        • 2.Qf2#
      • 1...Bxf7!
  • Keys
    • 1.Qa2!
      • threat
        • 2.b3#
        • 2.b4#
      • 1...Kg2
        • 2.b3#
        • 2.b4#
      • 1...Bf7
        • 2.b3#
      • 1...Ba5
        • 2.b4#
      • 1...Sa3
        • 2.bxa3#
      • 1...Sc3
        • 2.bxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Vars
        • S(e);::QAR2(F)
      • Refutation
        • P(d);XQ(F)
    • Try
      • Q(F);
      • Threat
        • QAR2(F)
      • Vars
        • K(a);P-FLIGHT::QAR1(F)
      • Refutation
        • B(f);XQ(F)
  • Actual
    • Q(F);
    • Threat
      • DUALS(2)
    • Vars
      • B(f);::QAR(F)+P(C)
      • B(g);::QAR(F)+P(C)
      • S(e);OGATE::QAR(F)+P(C),XS(e)
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