MESON Chess Problem Database

Problem Display
PID: 225341 (4B3/3r4/1p3P2/2k5/3RPK2/8/1Q2P3/8 w - - 0 1)

Reiprich, Gejza

2nd HM., Praca, 1947

4B3/3r4/1p3P2/2k5/3RPK2/8/1Q2P3/8

#2

7 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Qb4#
    • 1...Rd6
      • 2.Qc3#
      • 2.Qb4#
    • 1...Ra7
      • 2.Qc3#
      • 2.Qb4#
    • 1...Rb7
      • 2.Qc3#
      • 2.Qb4#
    • 1...Rc7
      • 2.Qc3#
      • 2.Qb4#
    • 1...Re7
      • 2.Qc3#
      • 2.Qb4#
    • 1...Rf7
      • 2.Qc3#
      • 2.Qb4#
    • 1...Rg7
      • 2.Qc3#
      • 2.Qb4#
    • 1...Rh7
      • 2.Qc3#
      • 2.Qb4#
    • 1...Rd8
      • 2.Qc3#
      • 2.Qb4#
  • Tries
    • 1.Rc4+?
      • 1...Kd6
        • 2.Qe5#
        • 2.Qxb6#
      • 1...Kxc4!
    • 1.Qa3+?
      • 1...Kxd4
        • 2.Qb4#
      • 1...Kb5
        • 2.Bxd7#
      • 1...Kc6!
    • 1.Qc2+?
      • 1...Kxd4
        • 2.e3#
      • 1...Kb5!
    • 1.Qb5+?
      • 1...Kxd4
        • 2.Qb4#
      • 1...Kxb5!
  • Keys
    • 1.Rd6!
      • 1...Kc4
        • 2.Rc6#
      • 1...Kxd6
        • 2.Qxb6#
      • 1...Rxd6
        • 2.Qc3#
      • 1...Ra7
        • 2.Rc6#
        • 2.Qd4#
      • 1...Rb7
        • 2.Rc6#
        • 2.Qd4#
      • 1...Rc7
        • 2.Qd4#
      • 1...Re7
        • 2.Rc6#
        • 2.Qd4#
      • 1...Rf7
        • 2.Rc6#
        • 2.Qd4#
      • 1...Rg7
        • 2.Rc6#
        • 2.Qd4#
      • 1...Rh7
        • 2.Rc6#
        • 2.Qd4#
      • 1...Rd8
        • 2.Rc6#
        • 2.Qd4#
      • 1...b5
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • R(c);::QAB1(A)
  • Tries
    • Try
      • R(C);CHECK
      • Refutation
        • K(a);P-FLIGHT,XR(C)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT,XR(C)::QAR2(A)
        • K(a);P-FLIGHT,P_SPINR(c)::B(G),XR(c)
      • Refutation
        • K(a);P-FLIGHT,P_SPINR(c)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT,XR(C)::P(B)
      • Refutation
        • K(a);P-FLIGHT,P_SPINR(c)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT,XR(C)::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT,P_SPINR(c),XQ(A)
  • Actual
    • R(C);
    • Vars
      • K(a);P-FLIGHT::R(C)
      • K(a);S_FLIGHT,XR(C)::QAR2(A),XP(b)
      • R(c);SBLOCK,XR(C)::QAR2(A)
      • R(c);::QAB1(A)
      • P(b);SBLOCK::QAB1(A)
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