MESON Chess Problem Database

Problem Display
PID: 28307 (5K2/8/8/6p1/6R1/7p/2R3pk/2Q4B w - - 0 1)

Mari, Alberto

L'Italia Scacchistica, 1917

5K2/8/8/6p1/6R1/7p/2R3pk/2Q4B

#2

5 + 4

3242 BCPS Rapid Solving (Cheltenham) 2001

SOLUTION

  • SOUND
  • Tries
    • 1.Rc3?
      • 1...gxh1S
        • 2.Qg1#
      • 1...gxh1B
        • 2.Qg1#
      • 1...gxh1R
        • 2.Rc2#
        • 2.Qb2#
        • 2.Qd2#
        • 2.Qc2#
      • 1...g1Q
        • 2.Qxg1#
      • 1...g1S
        • 2.Qxg1#
      • 1...g1B
        • 2.Qxg1#
      • 1...g1R
        • 2.Qxg1#
      • 1...gxh1Q!
    • 1.Rcc4?
      • 1...gxh1S
        • 2.Qg1#
      • 1...gxh1B
        • 2.Qg1#
      • 1...gxh1R
        • 2.Rc2#
        • 2.Qb2#
        • 2.Qd2#
        • 2.Qc2#
      • 1...g1Q
        • 2.Qxg1#
      • 1...g1S
        • 2.Qxg1#
      • 1...g1B
        • 2.Qxg1#
      • 1...g1R
        • 2.Qxg1#
      • 1...gxh1Q!
    • 1.Rc5?
      • 1...gxh1S
        • 2.Qg1#
      • 1...gxh1B
        • 2.Qg1#
      • 1...gxh1R
        • 2.Rc2#
        • 2.Qb2#
        • 2.Qd2#
        • 2.Qc2#
      • 1...g1Q
        • 2.Qxg1#
      • 1...g1S
        • 2.Qxg1#
      • 1...g1B
        • 2.Qxg1#
      • 1...g1R
        • 2.Qxg1#
      • 1...gxh1Q!
    • 1.Rc6?
      • 1...gxh1S
        • 2.Qg1#
      • 1...gxh1B
        • 2.Qg1#
      • 1...gxh1R
        • 2.Rc2#
        • 2.Qb2#
        • 2.Qd2#
        • 2.Qc2#
      • 1...g1Q
        • 2.Qxg1#
      • 1...g1S
        • 2.Qxg1#
      • 1...g1B
        • 2.Qxg1#
      • 1...g1R
        • 2.Qxg1#
      • 1...gxh1Q!
    • 1.Rc7?
      • 1...gxh1S
        • 2.Qg1#
      • 1...gxh1B
        • 2.Qg1#
      • 1...gxh1R
        • 2.Rc2#
        • 2.Qb2#
        • 2.Qd2#
        • 2.Qc2#
      • 1...g1Q
        • 2.Qxg1#
      • 1...g1S
        • 2.Qxg1#
      • 1...g1B
        • 2.Qxg1#
      • 1...g1R
        • 2.Qxg1#
      • 1...gxh1Q!
  • Keys
    • 1.Rc8!
      • 1...gxh1Q
        • 2.Qc7#
      • 1...gxh1S
        • 2.Qg1#
      • 1...gxh1B
        • 2.Qg1#
        • 2.Qc7#
      • 1...gxh1R
        • 2.Rc2#
        • 2.Qb2#
        • 2.Qd2#
        • 2.Qc2#
        • 2.Qc7#
      • 1...g1Q
        • 2.Qxg1#
      • 1...g1S
        • 2.Qxg1#
      • 1...g1B
        • 2.Qxg1#
      • 1...g1R
        • 2.Qxg1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);N_PINP(a)
      • Vars
        • P(a);XB(B)::QAB1(A)
        • P(a);::QAB1(A),XQ(a)
        • P(a);::QAB1(A),XS(a)
        • P(a);::QAB1(A),XB(a)
        • P(a);::QAB1(A),XR(a)
      • Refutation
        • P(a);XB(B)
    • Try
      • R(C);N_PINP(a)
      • Vars
        • P(a);XB(B)::QAB1(A)
        • P(a);::QAB1(A),XQ(a)
        • P(a);::QAB1(A),XS(a)
        • P(a);::QAB1(A),XB(a)
        • P(a);::QAB1(A),XR(a)
      • Refutation
        • P(a);XB(B)
    • Try
      • R(C);N_PINP(a)
      • Vars
        • P(a);XB(B)::QAB1(A)
        • P(a);::QAB1(A),XQ(a)
        • P(a);::QAB1(A),XS(a)
        • P(a);::QAB1(A),XB(a)
        • P(a);::QAB1(A),XR(a)
      • Refutation
        • P(a);XB(B)
    • Try
      • R(C);N_PINP(a)
      • Vars
        • P(a);XB(B)::QAB1(A)
        • P(a);::QAB1(A),XQ(a)
        • P(a);::QAB1(A),XS(a)
        • P(a);::QAB1(A),XB(a)
        • P(a);::QAB1(A),XR(a)
      • Refutation
        • P(a);XB(B)
    • Try
      • R(C);N_PINP(a)
      • Vars
        • P(a);XB(B)::QAB1(A)
        • P(a);::QAB1(A),XQ(a)
        • P(a);::QAB1(A),XS(a)
        • P(a);::QAB1(A),XB(a)
        • P(a);::QAB1(A),XR(a)
      • Refutation
        • P(a);XB(B)
  • Actual
    • R(C);N_PINP(a)
    • Vars
      • P(a);SBLOCK,XB(B)::QAB(A)
      • P(a);XB(B)::QAB1(A)
      • P(a);::QAB1(A),XQ(a)
      • P(a);::QAB1(A),XS(a)
      • P(a);::QAB1(A),XB(a)
      • P(a);::QAB1(A),XR(a)
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