MESON Chess Problem Database

Problem Display
PID: 175752 (8/6B1/K1pp4/8/2kP1R2/P4Q2/8/8 w - - 0 1)

Wurzburg, Otto

American Chess Magazine, 1898

8/6B1/K1pp4/8/2kP1R2/P4Q2/8/8

#2

6 + 3

6490 yacpdb 2018
5454 Near Snap 2019

SOLUTION

  • SOUND
  • Sets
    • 1...c5
      • 2.d5#
  • Tries
    • 1.Ka5?
      • 1...c5
        • 2.d5#
      • 1...d5!
    • 1.Bf6?
      • 1...c5
        • 2.d5#
      • 1...d5!
    • 1.Bh6?
      • 1...c5
        • 2.d5#
      • 1...d5!
    • 1.Bf8?
      • 1...c5
        • 2.d5#
      • 1...d5!
    • 1.Bh8?
      • 1...c5
        • 2.d5#
      • 1...d5!
    • 1.Rg4?
      • 1...c5
        • 2.d5#
      • 1...d5!
    • 1.Rh4?
      • 1...c5
        • 2.d5#
      • 1...d5!
    • 1.Qe2+?
      • 1...Kc3
        • 2.Rf3#
      • 1...Kd5
        • 2.Rf5#
        • 2.Qa2#
      • 1...Kb3!
    • 1.Qc3+?
      • 1...Kd5
        • 2.Qb3#
      • 1...Kxc3!
    • 1.Qd3+?
      • 1...Kd5
        • 2.Qb3#
      • 1...Kxd3!
  • Keys
    • 1.Qd1!
      • 1...Kc3
        • 2.d5#
      • 1...Kd5
        • 2.Qb3#
      • 1...d5
        • 2.Qc2#
      • 1...c5
        • 2.d5#

Anticipated by 148536(0000)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::R(D)+P(C)
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Vars
        • P(b);SBLOCK::R(D)+P(C)
      • Refutation
        • P(c);
    • Try
      • B(F);
      • Vars
        • P(b);SBLOCK::R(D)+P(C)
      • Refutation
        • P(c);
    • Try
      • B(F);
      • Vars
        • P(b);SBLOCK::R(D)+P(C)
      • Refutation
        • P(c);
    • Try
      • B(F);
      • Vars
        • P(b);SBLOCK::R(D)+P(C)
      • Refutation
        • P(c);
    • Try
      • B(F);
      • Vars
        • P(b);SBLOCK::R(D)+P(C)
      • Refutation
        • P(c);
    • Try
      • R(D);
      • Vars
        • P(b);SBLOCK::R(D)+P(C)
      • Refutation
        • P(c);
    • Try
      • R(D);
      • Vars
        • P(b);SBLOCK::R(D)+P(C)
      • Refutation
        • P(c);
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::R(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB(B)
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB(B)
      • Refutation
        • K(a);S_FLIGHT,XQ(B)
  • Actual
    • Q(B);
    • Vars
      • K(a);P-FLIGHT::B(F)+P(C)
      • K(a);S_FLIGHT::QAB(B)
      • P(c);SBLOCK::QAR2(B)
      • P(b);SBLOCK::R(D)+P(C)
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