MESON Chess Problem Database

Problem Display
PID: 262766 (6K1/6b1/3Bk1p1/3R2Q1/8/8/8/8 w - - 0 1)

Pniak, Edmund Jan

Szachy, 1957

6K1/6b1/3Bk1p1/3R2Q1/8/8/8/8

#2

4 + 3

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Bh2?
      • threat
        • 2.Rd6#
      • 1...Be5
        • 2.Qxe5#
      • 1...Bf8
        • 2.Qe5#
      • 1...Bf6!
    • 1.Ba3?
      • threat
        • 2.Rd6#
      • 1...Be5
        • 2.Qxe5#
      • 1...Bf8
        • 2.Qe5#
      • 1...Bf6!
    • 1.Bg3?
      • threat
        • 2.Rd6#
      • 1...Be5
        • 2.Qxe5#
      • 1...Bf8
        • 2.Qe5#
      • 1...Bf6!
    • 1.Bb4?
      • threat
        • 2.Rd6#
      • 1...Be5
        • 2.Qxe5#
      • 1...Bf8
        • 2.Qe5#
      • 1...Bf6!
    • 1.Bf4?
      • threat
        • 2.Rd6#
      • 1...Be5
        • 2.Qxe5#
      • 1...Bf8
        • 2.Qe5#
      • 1...Bf6!
    • 1.Bc5?
      • threat
        • 2.Rd6#
      • 1...Be5
        • 2.Qxe5#
      • 1...Bf8
        • 2.Qe5#
      • 1...Bf6!
    • 1.Bc7?
      • threat
        • 2.Rd6#
      • 1...Be5
        • 2.Qxe5#
      • 1...Bf8
        • 2.Qe5#
      • 1...Bf6!
    • 1.Be7?
      • threat
        • 2.Rd6#
      • 1...Be5
        • 2.Qxe5#
      • 1...Bf6!
    • 1.Bb8?
      • threat
        • 2.Rd6#
      • 1...Be5
        • 2.Qxe5#
      • 1...Bf8
        • 2.Qe5#
      • 1...Bf6!
  • Keys
    • 1.Bf8!
      • threat
        • 2.Rd6#
      • 1...Bxf8
        • 2.Qe5#
      • 1...Be5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);
      • Threat
        • R1(A)
      • Vars
        • B(c);N_GUARD::QAR1(B),XB(c)
        • B(c);N_GUARD::QAR1(B)
      • Refutation
        • B(c);
    • Try
      • B(C);
      • Threat
        • R1(A)
      • Vars
        • B(c);N_GUARD::QAR1(B),XB(c)
        • B(c);N_GUARD::QAR1(B)
      • Refutation
        • B(c);
    • Try
      • B(C);
      • Threat
        • R1(A)
      • Vars
        • B(c);N_GUARD::QAR1(B),XB(c)
        • B(c);N_GUARD::QAR1(B)
      • Refutation
        • B(c);
    • Try
      • B(C);
      • Threat
        • R1(A)
      • Vars
        • B(c);N_GUARD::QAR1(B),XB(c)
        • B(c);N_GUARD::QAR1(B)
      • Refutation
        • B(c);
    • Try
      • B(C);
      • Threat
        • R1(A)
      • Vars
        • B(c);N_GUARD::QAR1(B),XB(c)
        • B(c);N_GUARD::QAR1(B)
      • Refutation
        • B(c);
    • Try
      • B(C);
      • Threat
        • R1(A)
      • Vars
        • B(c);N_GUARD::QAR1(B),XB(c)
        • B(c);N_GUARD::QAR1(B)
      • Refutation
        • B(c);
    • Try
      • B(C);
      • Threat
        • R1(A)
      • Vars
        • B(c);N_GUARD::QAR1(B),XB(c)
        • B(c);N_GUARD::QAR1(B)
      • Refutation
        • B(c);
    • Try
      • B(C);
      • Threat
        • R1(A)
      • Vars
        • B(c);N_GUARD::QAR1(B),XB(c)
      • Refutation
        • B(c);
    • Try
      • B(C);
      • Threat
        • R1(A)
      • Vars
        • B(c);N_GUARD::QAR1(B),XB(c)
        • B(c);N_GUARD::QAR1(B)
      • Refutation
        • B(c);
  • Actual
    • B(C);
    • Threat
      • R1(A)
    • Vars
      • B(c);N_GUARD,XB(C)::QAR1(B)
      • B(c);N_GUARD::QAR1(B),XB(c)
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