MESON Chess Problem Database

Problem Display
PID: 122969 (3Q1Nn1/1Kp5/p2B2r1/3k4/R7/8/2P5/8 w - - 0 1)

von Wardener, Friedrich Freiherr

Bohemia, 1901

3Q1Nn1/1Kp5/p2B2r1/3k4/R7/8/2P5/8

#2

6 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd6
      • 2.Qg5#
    • 1...cxd6
      • 2.Qa5#
  • Tries
    • 1.Bh2+?
      • 1...Rd6
        • 2.Qg5#
      • 1...Kc5!
    • 1.Ba3+?
      • 1...Rd6
        • 2.Qg5#
      • 1...Ke5!
    • 1.Bg3+?
      • 1...Rd6
        • 2.Qg5#
      • 1...Kc5!
    • 1.Bf4+?
      • 1...Rd6
        • 2.Qg5#
      • 1...Kc5!
    • 1.Bxc7+?
      • 1...Rd6
        • 2.Qg5#
        • 2.Qxd6#
      • 1...Kc5!
    • 1.Rg4?
      • threat
        • 2.c4#
      • 1...Rxd6
        • 2.Qg5#
      • 1...cxd6
        • 2.Qa5#
      • 1...Rxg4!
    • 1.Rh4?
      • threat
        • 2.c4#
      • 1...Rxd6
        • 2.Qg5#
      • 1...cxd6
        • 2.Qa5#
      • 1...Rg4!
    • 1.Qg5+?
      • 1...Kxd6
        • 2.Rd4#
      • 1...Rxg5!
    • 1.Qxc7?
      • threat
        • 2.Qc5#
        • 2.Qc6#
      • 1...Rxd6
        • 2.Qa5#
      • 1...Se7
        • 2.Qc5#
      • 1...Rg7!
    • 1.Qd7?
      • threat
        • 2.Qc6#
      • 1...Rxd6
        • 2.Qf5#
      • 1...cxd6
        • 2.Qf5#
      • 1...c6
        • 2.Qxc6#
      • 1...Se7!
  • Keys
    • 1.Rf4!
      • threat
        • 2.c4#
      • 1...Rxd6
        • 2.Qg5#
      • 1...cxd6
        • 2.Qa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • R(c);N_GUARD,P_SPINR(c),SBLOCK,XB(C)::QAR(E)
    • P(d);OGATE,P_SPINP(d),SBLOCK,XB(C)::QAR(E)
  • Tries
    • Try
      • B(C);CHECK
      • Vars
        • R(c);N_GUARD,P_SPINR(c)::QAR(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(C);CHECK
      • Vars
        • R(c);N_GUARD,P_SPINR(c)::QAR(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(C);CHECK
      • Vars
        • R(c);N_GUARD,P_SPINR(c)::QAR(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(C);CHECK
      • Vars
        • R(c);N_GUARD,P_SPINR(c)::QAR(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(C);CHECK,XP(d)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(B);
      • Threat
        • P(A)
      • Vars
        • R(c);N_GUARD,P_SPINR(c),SBLOCK,XB(C)::QAR(E)
        • P(d);OGATE,P_SPINP(d),SBLOCK,XB(C)::QAR(E)
      • Refutation
        • R(c);XR(B)
    • Try
      • R(B);
      • Threat
        • P(A)
      • Vars
        • R(c);N_GUARD,P_SPINR(c),SBLOCK,XB(C)::QAR(E)
        • P(d);OGATE,P_SPINP(d),SBLOCK,XB(C)::QAR(E)
      • Refutation
        • R(c);
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);P-FLIGHT,XB(C)::R(B)
      • Refutation
        • R(c);XQ(E)
    • Try
      • Q(E);XP(d)
      • Threat
        • DUALS(2)
      • Vars
        • R(c);SBLOCK,XB(C)::QAR(E)
        • S(e);::QAR1(E)
      • Refutation
        • R(c);P_PINQ(E)
    • Try
      • Q(E);
      • Threat
        • QAB1(E)
      • Vars
        • R(c);P_SPINR(c),SBLOCK,XB(C)::QAR2(E)
        • P(d);P_SPINP(d),SBLOCK,XB(C)::QAR2(E)
        • P(d);::QAB1(E),XP(d)
      • Refutation
        • S(e);
  • Actual
    • R(B);
    • Threat
      • P(A)
    • Vars
      • R(c);N_GUARD,P_SPINR(c),SBLOCK,XB(C)::QAR(E)
      • P(d);OGATE,P_SPINP(d),SBLOCK,XB(C)::QAR(E)
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