MESON Chess Problem Database

Problem Display
PID: 185909 (2b5/1B1pp3/2r3Q1/4pn2/1p2k3/1PpRP3/2p2B2/4R2K w - - 0 1)

Voellmy, Erwin

Basler Nachrichten, 1912

2b5/1B1pp3/2r3Q1/4pn2/1p2k3/1PpRP3/2p2B2/4R2K

#2

8 + 10

15601 Albrecht-Leiss-Degener Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Qxf5#
      • 2.Qg2#
  • Tries
    • 1.Rd2?
      • threat
        • 2.Qg2#
        • 2.Qg4#
      • 1...Kf3
        • 2.Qxf5#
        • 2.Qg2#
      • 1...cxd2!
    • 1.Rxc3?
      • threat
        • 2.Qg2#
      • 1...Kf3
        • 2.Qxf5#
        • 2.Qg2#
      • 1...Kd5
        • 2.e4#
      • 1...bxc3!
    • 1.Rd4+?
      • 1...Kf3
        • 2.Qxf5#
        • 2.Qg2#
      • 1...exd4!
    • 1.Rd6?
      • threat
        • 2.Qg2#
        • 2.Qg4#
      • 1...Kf3
        • 2.Qxf5#
        • 2.Qg2#
      • 1...exd6!
    • 1.Rxd7?
      • threat
        • 2.Bxc6#
        • 2.Qg2#
        • 2.Qg4#
        • 2.Qxc6#
      • 1...Kf3
        • 2.Qxf5#
        • 2.Qg2#
      • 1...Bxb7
        • 2.Qg2#
        • 2.Qg4#
      • 1...e6
        • 2.Bxc6#
        • 2.Qg2#
        • 2.Qg4#
      • 1...Bxd7!
  • Keys
    • 1.Rd5!
      • threat
        • 2.Qg2#
      • 1...Kf3
        • 2.Qxf5#
        • 2.Qg2#
      • 1...Kxd5
        • 2.e4#
      • 1...Rxg6
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);
      • Threat
        • DUALS(2)
      • Refutation
        • P(b);XR(E)
    • Try
      • R(E);XP(b)
      • Threat
        • QAB(G)
      • Vars
        • K(d);N_SPINS(f),OGATE,S_FLIGHT::P(F)
      • Refutation
        • P(c);XR(E)
    • Try
      • R(E);CHECK
      • Refutation
        • P(e);XR(E)
    • Try
      • R(E);
      • Threat
        • DUALS(2)
      • Refutation
        • P(i);XR(E)
    • Try
      • R(E);XP(h)
      • Threat
        • DUALS(4)
      • Refutation
        • B(j);XR(E)
  • Actual
    • R(E);N_PINR(g)
    • Threat
      • QAB(G)
    • Vars
      • K(d);N_SPINS(f),OGATE,P_SPINR(g),S_FLIGHT,XR(E)::P(F)
      • R(g);N_SPINS(f),XQ(G)::B(H)+R(E),DCHECK
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