MESON Chess Problem Database

Problem Display
PID: 141680 (8/8/3p4/8/1K2kp2/2P4B/5Q2/8 w - - 0 1)

Lincoln, Robert A

Comm., Uralski Problemist, 2008

8/8/3p4/8/1K2kp2/2P4B/5Q2/8

#2

4 + 3

145 StrateGems 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Bf5#
    • 1...Ke5
      • 2.Qd4#
    • 1...f3
      • 2.Qd4#
    • 1...d5
      • 2.Qe2#
  • Tries
    • 1.Kb3?
      • 1...Kd3
        • 2.Bf5#
      • 1...Ke5
        • 2.Qd4#
      • 1...f3
        • 2.Qd4#
      • 1...d5
        • 2.Qe2#
      • 1...Kd5!
    • 1.Kc4?
      • threat
        • 2.Qe2#
      • 1...Ke5
        • 2.Qd4#
      • 1...f3
        • 2.Qd4#
      • 1...d5+!
    • 1.Kb5?
      • 1...Kd5
        • 2.Qd4#
      • 1...Ke5
        • 2.Qd4#
      • 1...f3
        • 2.Qd4#
      • 1...d5
        • 2.Qe2#
      • 1...Kd3!
    • 1.Bg4?
      • threat
        • 2.Qd4#
      • 1...Kd3
        • 2.Bf5#
        • 2.Qe2#
      • 1...Ke5
        • 2.Qd4#
      • 1...Kd5!
    • 1.Be6?
      • threat
        • 2.Qe2#
      • 1...Kd3
        • 2.Bf5#
      • 1...f3
        • 2.Qd4#
      • 1...Ke5!
    • 1.Bc8?
      • 1...Kd3
        • 2.Bf5#
      • 1...Ke5
        • 2.Qd4#
      • 1...f3
        • 2.Qd4#
      • 1...d5
        • 2.Qe2#
      • 1...Kd5!
    • 1.Qd2?
      • 1...Ke5
        • 2.Qd4#
      • 1...f3
        • 2.Qd4#
      • 1...d5
        • 2.Qe2#
      • 1...Kf3!
  • Keys
    • 1.Bd7!
      • 1...Kd3
        • 2.Bf5#
      • 1...Kd5
        • 2.Qd4#
      • 1...Ke5
        • 2.Qd4#
      • 1...f3
        • 2.Qd4#
      • 1...d5
        • 2.Qe2#

There are these versions: 180666

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(C)
    • K(a);P-FLIGHT::QAB1(A)
    • P(b);SBLOCK::QAR1(A)
    • P(c);SBLOCK::QAR2(A)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(C)
        • K(a);P-FLIGHT::QAB1(A)
        • P(b);SBLOCK::QAR1(A)
        • P(c);SBLOCK::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(D);P-FLIGHT
      • Threat
        • QAR2(A)
      • Vars
        • K(a);P-FLIGHT::QAB1(A)
        • P(b);SBLOCK::QAR1(A)
      • Refutation
        • P(c);CHECK
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
        • K(a);P-FLIGHT::QAB1(A)
        • P(b);SBLOCK::QAR1(A)
        • P(c);SBLOCK::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);
      • Threat
        • QAR1(A)
      • Vars
        • K(a);P-FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);
      • Threat
        • QAR2(A)
      • Vars
        • K(a);S_FLIGHT::B(C)
        • P(b);SBLOCK::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::B(C)
        • K(a);P-FLIGHT::QAB1(A)
        • P(b);SBLOCK::QAR1(A)
        • P(c);SBLOCK::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::QAB1(A)
        • P(b);SBLOCK::QAR1(A)
        • P(c);SBLOCK::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(C);
    • Vars
      • K(a);S_FLIGHT::B(C)
      • K(a);S_FLIGHT::QAR1(A)
      • K(a);P-FLIGHT::QAB1(A)
      • P(b);SBLOCK::QAR1(A)
      • P(c);SBLOCK::QAR2(A)
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