MESON Chess Problem Database

Problem Display
PID: 73385 (1RK5/8/r1k5/1pP2p2/3R4/b1rp2p1/3Q1P2/6B1 w - - 0 1)

Muller, Dieter

3rd Comm., Biscan MT, 2006

1RK5/8/r1k5/1pP2p2/3R4/b1rp2p1/3Q1P2/6B1

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc5
      • 2.Qxc3#
    • 1...Rxc5
      • 2.Qh6#
  • Tries
    • 1.Qe3?
      • threat
        • 2.Rd6#
      • 1...Rxc5
        • 2.Qh6#
        • 2.Qe6#
        • 2.Qe8#
      • 1...Bxc5
        • 2.Qf3#
        • 2.Qe8#
      • 1...Kxc5!
    • 1.Qf4?
      • threat
        • 2.Qd6#
        • 2.Qc7#
      • 1...Bxc5
        • 2.Qc7#
        • 2.Qf3#
      • 1...Ra7
        • 2.Qd6#
      • 1...Kxc5!
    • 1.f3?
      • threat
        • 2.Rd6#
      • 1...Kxc5
        • 2.Qxc3#
      • 1...Rxc5
        • 2.Qh6#
      • 1...Bxc5!
    • 1.f4?
      • threat
        • 2.Rd6#
      • 1...Kxc5
        • 2.Qxc3#
      • 1...Bxc5
        • 2.Qg2#
      • 1...Rxc5!
  • Keys
    • 1.fxg3!
      • threat
        • 2.Rd6#
      • 1...Kxc5
        • 2.Qxc3#
      • 1...Rxc5
        • 2.Qh6#
      • 1...Bxc5
        • 2.Qg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(h);OGATEB,P-FLIGHT,XP(E)::QAR2(B),XR(b)
    • R(b);SBLOCK,XP(E)::QAR(B)
  • Tries
    • Try
      • Q(B);
      • Threat
        • R1(D)
      • Refutation
        • K(h);P-FLIGHT,XP(E)
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • R(g);::QAR1(B)
      • Refutation
        • K(h);P-FLIGHT,XP(E)
    • Try
      • P(C);
      • Threat
        • R1(D)
      • Vars
        • K(h);OGATEB,P-FLIGHT,XP(E)::QAR2(B),XR(b)
        • R(b);SBLOCK,XP(E)::QAR(B)
      • Refutation
        • B(a);XP(E)
    • Try
      • P(C);
      • Threat
        • R1(D)
      • Vars
        • K(h);OGATEB,P-FLIGHT,XP(E)::QAR2(B),XR(b)
        • B(a);SBLOCK,XP(E)::QAB(B)
      • Refutation
        • R(b);XP(E)
  • Actual
    • P(C);XP(d)
    • Threat
      • R1(D)
    • Vars
      • K(h);OGATEB,P-FLIGHT,XP(E)::QAR2(B),XR(b)
      • R(b);SBLOCK,XP(E)::QAR(B)
      • B(a);SBLOCK,XP(E)::QAB(B)
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