MESON Chess Problem Database

Problem Display
PID: 106006 (8/8/2p5/3kB3/4R2p/7Q/2K5/8 w - - 0 1)

Volkheimer, Alexander

Frankisches Volksblatt, 1912

8/8/2p5/3kB3/4R2p/7Q/2K5/8

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Kd3?
      • 1...c5
        • 2.Qd7#
      • 1...Kc5!
    • 1.Bh2?
      • threat
        • 2.Qf5#
      • 1...Kxe4
        • 2.Qd3#
      • 1...c5
        • 2.Qe6#
      • 1...Kc5!
    • 1.Bb8?
      • threat
        • 2.Qf5#
      • 1...Kxe4
        • 2.Qd3#
      • 1...c5
        • 2.Qe6#
      • 1...Kc5!
    • 1.Qf5?
      • threat
        • 2.Bh2#
        • 2.Bg3#
        • 2.Bf4#
        • 2.Bc7#
        • 2.Bb8#
      • 1...Kc5
        • 2.Bc7#
      • 1...c5!
  • Keys
    • 1.Bc7!
      • threat
        • 2.Qf5#
      • 1...Kxe4
        • 2.Qd3#
      • 1...Kc5
        • 2.Qf5#
      • 1...c5
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Vars
        • P(c);SBLOCK::QAR2(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(D);
      • Threat
        • QAR2(B)
      • Vars
        • K(b);S_FLIGHT,XR(C)::QAB1(B)
        • P(c);SBLOCK::QAB1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(D);
      • Threat
        • QAR2(B)
      • Vars
        • K(b);S_FLIGHT,XR(C)::QAB1(B)
        • P(c);SBLOCK::QAB1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • DUALS(5)
      • Vars
        • K(b);P-FLIGHT::QAR(B)+B(D)
      • Refutation
        • P(c);
  • Actual
    • B(D);
    • Threat
      • QAR2(B)
    • Vars
      • K(b);S_FLIGHT,XR(C)::QAB1(B)
      • K(b);P-FLIGHT::QAR(B)
      • P(c);SBLOCK::QAB1(B)
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