MESON Chess Problem Database

Problem Display
PID: 184871 (3R3K/3N4/1p2p3/1B1k2p1/1Q3b2/4pp2/8/8 w - - 0 1)

Bihari, Mor

Magyar Sakklap, 1908

3R3K/3N4/1p2p3/1B1k2p1/1Q3b2/4pp2/8/8

#2

5 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Be5+
      • 2.Sf6#
    • 1...Bd6
      • 2.Qc4#
    • 1...e5
      • 2.Sc5#
      • 2.Sf8#
  • Tries
    • 1.Qd2+?
      • 1...Ke4
        • 2.Qd3#
      • 1...exd2!
    • 1.Qc3?
      • threat
        • 2.Sf6#
        • 2.Qd3#
      • 1...Be5+
        • 2.Sf6#
        • 2.Qxe5#
      • 1...Ke4
        • 2.Qd3#
      • 1...e5
        • 2.Sc5#
      • 1...Kd6!
    • 1.Qc5+?
      • 1...Ke4
        • 2.Sf6#
      • 1...bxc5!
    • 1.Qb3+?
      • 1...Kd4
        • 2.Qc4#
        • 2.Qd3#
      • 1...Ke4
        • 2.Qd3#
      • 1...Kd6!
    • 1.Qxf4?
      • threat
        • 2.Qe5#
      • 1...e5
        • 2.Qxe5#
      • 1...gxf4!
  • Keys
    • 1.Qa3!
      • threat
        • 2.Qd3#
      • 1...Be5+
        • 2.Sf6#
      • 1...Kd4
        • 2.Qd3#
      • 1...Ke4
        • 2.Qd3#
      • 1...e5
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(c);CHECK,SBLOCK::R(D)+S(C),DCHECK
    • B(c);SBLOCK::QAB1(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);S_FLIGHT::QAB1(A)
      • Refutation
        • P(a);XQ(A)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(d);S_FLIGHT::QAB1(A)
        • P(g);S_CUTB(c)::R(D)+S(C)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);S_FLIGHT::S(C)
      • Refutation
        • P(f);XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);S_FLIGHT::QAB1(A)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(A);XB(c)
      • Threat
        • QAR1(A)
      • Vars
        • P(g);::QAR1(A),XP(g)
      • Refutation
        • P(e);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • QAR2(A)
    • Vars
      • B(c);CHECK,SBLOCK::R(D)+S(C),DCHECK
      • K(d);P-FLIGHT::QAR1(A)
      • K(d);S_FLIGHT::QAB1(A)
      • P(g);SBLOCK,S_CUTB(c)::R(D)+S(C)
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Developed and maintained by Brian Stephenson.
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